##### Table of Contents





UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549





FORM 10-K





(Mark One)

|x | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.
|- | -------------------------------------------------------------------------------------

For the fiscal year ended December 31, 2009

or



| ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.
|- | -----------------------------------------------------------------------------------------

For the transition period from              to

Commission file number: 001-15989





ENDO PHARMACEUTICALS HOLDINGS INC.

(Exact name of registrant as specified in its charter)







|                                                               |  |                                        
|-------------------------------------------------------------- |  | ---------------------------------------
|Delaware                                                       |  | 13-4022871                             
|(State or other jurisdiction of incorporation or organization) |  | (I.R.S. Employer Identification Number)
|                                                               | 
|100 Endo Boulevard Chadds Ford, Pennsylvania                   |  | 19317                                  
|(Address of Principal Executive Offices)                       |  | (Zip Code)                             

(Registrants Telephone Number, Including Area Code): (610) 558-9800

Securities registered
pursuant to Section 12(b) of the Act:



|                                |  |                                          
|------------------------------- |  | -----------------------------------------
|Title of Each Class             |  | Name of Each Exchange on Which Registered
|Common Stock of $0.01 par value |  | The NASDAQ Global Select Market          

Securities registered pursuant to Section 12(g) of the Act: N/A





Indicate by check
mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  x    No   ̈

Indicate by check mark if the registrant is not required to file reports pursuant
to Section 13 or 15(d) of the Act.    Yes   ̈    No  x

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Sections 13 or 15(d) of the Securities
Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90
days.    Yes  x    No   ̈

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate website, if any, every interactive
data file required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months.    Yes   ̈    No   ̈

Indicate by check mark if disclosure of delinquent filers pursuant to
Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrants knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to
this Form 10-K.  x

Indicate by check mark whether the
registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of large accelerated filer, accelerated filer and smaller reporting
company in Rule 12b-2 of the Exchange Act.



|                           |  |                      |  |                                              |   |  |                             
|-------------------------- |  | -------------------- |  | -------------------------------------------- | - |  | ----------------------------
|Large accelerated filer  x |  | Accelerated filer   ̈ |  | Non-accelerated filer   ̈                     |   |  | Smaller reporting company   ̈
|                           |  |                      |  | (Do not check if a smaller reporting company | ) |  |                             

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the
Act).    Yes   ̈    No  x

The aggregate market value of the voting common equity held by non-affiliates as of June 30, 2009 was $1,603,701,729 based on a closing
sale price of $17.92 per share as reported on the NASDAQ Global Select Market on June 30, 2009. Shares of the registrants common stock held by each officer and director and each beneficial owner of 10% or more of the outstanding common
stock of the registrant have been excluded since such persons and beneficial owners may be deemed to be affiliates. This determination of affiliate status is not necessarily a conclusive determination for other purposes. The registrant has no shares
of non-voting common stock authorized or outstanding.

Indicate the number of shares outstanding of each of the
registrants classes of common stock, as of February 19, 2010: 117,286,788

Documents Incorporated by Reference

Portions of the registrants proxy statement to be filed with the SEC pursuant to Regulation 14A in connection with
the registrants 2010 Annual Meeting of Stockholders, to be filed subsequent to the date hereof, are incorporated by reference into Part III of this Form 10-K. Such proxy statement will be filed with the SEC not later than 120 days after the
conclusion of the registrants fiscal year ended December 31, 2009.









---

##### Table of Contents

ENDO PHARMACEUTICALS HOLDINGS INC.

INDEX TO FORM 10-K

FOR THE YEAR ENDED DECEMBER 31, 2009



|                           |  |                                                                                                              |  |    
|-------------------------- |  | ------------------------------------------------------------------------------------------------------------ |  | ---
|Forward Looking Statements |  | 1                                                                                                           
|                           | 
|PART I                     |  | 2                                                                                                           
|Item 1                     |  | Business                                                                                                     |  | 2  
|Item 1A                    |  | Risk Factors                                                                                                 |  | 23 
|Item 1B                    |  | Unresolved Staff Comments                                                                                    |  | 46 
|Item 2                     |  | Properties                                                                                                   |  | 46 
|Item 3                     |  | Legal Proceedings                                                                                            |  | 47 
|                           | 
|PART II                    |  | 47                                                                                                          
|Item 5                     |  | Market for Registrants Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities |  | 47 
|Item 6                     |  | Selected Financial Data                                                                                      |  | 50 
|Item 7                     |  | Managements Discussion and Analysis of Financial Condition and Results of
Operations                        |  | 50 
|Item 7A                    |  | Quantitative and Qualitative Disclosures about Market Risk                                                   |  | 96 
|Item 8                     |  | Financial Statements and Supplementary Data                                                                  |  | 97 
|Item 9                     |  | Changes in and Disagreements with Accountants on Accounting and Financial Disclosure                         |  | 97 
|Item 9A                    |  | Controls and Procedures                                                                                      |  | 97 
|Item 9B                    |  | Other Information                                                                                            |  | 98 
|                           | 
|PART III                   |  | 98                                                                                                          
|Item 10                    |  | Directors, Executive Officers and Corporate Governance                                                       |  | 98 
|Item 11                    |  | Executive Compensation                                                                                       |  | 99 
|Item 12                    |  | Security Ownership of Certain Beneficial Owners and Management and Related Stockholder
Matters               |  | 99 
|Item 13                    |  | Certain Relationships and Related Transactions, and Director Independence                                    |  | 99 
|Item 14                    |  | Principal Accountant Fees and Services                                                                       |  | 100
|                           | 
|PART IV                    |  | 100                                                                                                         
|Item 15                    |  | Exhibits, Financial Statement Schedules                                                                      |  | 100
|Signatures                 |  | 101                                                                                                         
|Certifications             |  |                                                                                                             
|Exhibit Index              |  |                                                                                                             



---

##### Table of Contents

FORWARD LOOKING STATEMENTS

This document contains information that includes or is based on forward-looking statements within the meaning of
Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act. These statements, including estimates of future revenues, future
expenses, future net income and future earnings per share, contained in the section titled Managements Discussion and Analysis of Financial Condition and Results of Operations, are subject to risks and uncertainties.
Forward-looking statements include the information concerning our possible or assumed results of operations. Also, statements including words such as believes, expects, anticipates, intends,
estimates, plan, will, may or similar expressions are forward-looking statements. We have based these forward-looking statements on our current expectations and projections about the growth of our
business, our financial performance and the development of our industry. Because these statements reflect our current views concerning future events, these forward-looking statements involve risks and uncertainties. Investors should note that many
factors, as more fully described in Item 1A Risk Factors in this document, supplement, and as otherwise enumerated herein, could affect our future financial results and could cause our actual results to differ materially from those
expressed in forward-looking statements contained in this document. Important factors that could cause our actual results to differ materially from the expectations reflected in the forward-looking statements in this document include those factors
described in this document under Item 1A titled Risk Factors, including, among others:



| |  |  | our ability to successfully develop, commercialize and market new products;
| | - |  | ---------------------------------------------------------------------------



| |  |  | timing and results of pre-clinical or clinical trials on new products;
| | - |  | ----------------------------------------------------------------------



| |  |  | our ability to obtain regulatory approval of any of our pipeline products;
| | - |  | --------------------------------------------------------------------------



| |  |  | competition for the business of our branded and generic products, and in connection with our acquisition of rights to intellectual property assets;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | market acceptance of our future products;
| | - |  | -----------------------------------------



| |  |  | government regulation of the pharmaceutical industry;
| | - |  | -----------------------------------------------------



| |  |  | our dependence on a small number of products;
| | - |  | ---------------------------------------------



| |  |  | our dependence on outside manufacturers for the manufacture of a majority of our products;
| | - |  | ------------------------------------------------------------------------------------------



| |  |  | our dependence on third parties to supply raw materials and to provide services for certain core aspects of our business;
| | - |  | -------------------------------------------------------------------------------------------------------------------------



| |  |  | new regulatory action or lawsuits relating to our use of narcotics in most of our core products;
| | - |  | ------------------------------------------------------------------------------------------------



| |  |  | our exposure to product liability claims and product recalls and the possibility that we may not be able to adequately insure ourselves;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------



| |  |  | our ability to protect our proprietary technology;
| | - |  | --------------------------------------------------



| |  |  | the successful efforts of manufacturers of branded pharmaceuticals to use litigation and legislative and regulatory efforts to limit the use of
generics and certain other products;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | our ability to successfully implement our acquisition and in-licensing strategy;
| | - |  | --------------------------------------------------------------------------------



| |  |  | regulatory or other limits on the availability of controlled substances that constitute the active ingredients of some of our products and products in
development;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the availability of third-party reimbursement for our products;
| | - |  | ---------------------------------------------------------------



| |  |  | the outcome of any pending or future litigation or claims by third parties or the government, and the performance of indemnitors with respect to claims
for which we have been indemnified;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | our dependence on sales to a limited number of large pharmacy chains and wholesale drug distributors for a large portion of our total revenues;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------



1



---

##### Table of Contents

| |  |  | significant litigation expenses to defend or assert patent infringement claims;
| | - |  | -------------------------------------------------------------------------------



| |  |  | any interruption or failure by our suppliers, distributors and collaboration partners to meet their obligations pursuant to various agreements with us;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | a determination by a regulatory agency that we are engaging or have engaged in inappropriate sales or marketing activities, including promoting the
off-label use of our products;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | existing suppliers become unavailable or lose their regulatory status as an approved source, causing an inability to obtain required components, raw
materials or products on a timely basis or at commercially reasonable prices;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the loss of branded product exclusivity periods and related intellectual property;
| | - |  | ----------------------------------------------------------------------------------



| |  |  | our exposure to securities that are subject to market risk including auction-rate securities that are currently illiquid due to an inactive
auction-rate market;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | our ability to successfully execute our strategy;
| | - |  | -------------------------------------------------



| |  |  | disruption of our operations if our information systems fail or if we are unsuccessful in implementing necessary upgrades or new software; and
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | our ability to maintain or expand our business if we are unable to retain or attract key personnel and continue to attract additional professional
staff.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------

We do not undertake any obligation to update our forward-looking statements after the date of this
Report for any reason, even if new information becomes available or other events occur in the future. You are advised, however, to consult any further disclosures we make on related subjects in our 10-Q and 8-K reports to the Securities and Exchange
Commission (referred to as the SEC). Also note that we provide the preceding cautionary discussion of risks, uncertainties and possibly inaccurate assumptions relevant to our business. These are factors that, individually or in the aggregate, we
think could cause our actual results to differ materially from expected and historical results. We note these factors for investors as permitted by the Private Securities Litigation Reform Act of 1995. You should understand that it is not possible
to predict or identify all such factors. Consequently, you should not consider the preceding to be a complete discussion of all potential risks or uncertainties.

PART I



|Item 1. | Business
|------- | --------

Overview

We are a specialty pharmaceutical company engaged in the
research, development, manufacturing, marketing and sale of branded and generic prescription pharmaceuticals used primarily to treat and manage pain, overactive bladder, prostate and bladder cancer, and the early onset of puberty in children, or
central precocious puberty.

We have a portfolio of branded products that includes brand names such as
Lidoderm®, Opana® ER and Opana®, Percocet®, Frova®, Voltaren® Gel, Vantas®, Valstar®, and Supprelin® LA. Branded
products comprised approximately 91% of our net sales in 2009, with 52% of our revenues coming from Lidoderm®.
Our non-branded generic portfolio, which accounted for 9% of net sales in 2009, currently consists of products primarily focused in pain management. We focus on select generics that have one or more barriers to market entry, such as complex
formulation, regulatory or legal challenges or difficulty in raw material sourcing.

In the first quarter
of 2009, we acquired Indevus Pharmaceuticals (referred to as Indevus), a specialty pharmaceutical company engaged in the acquisition, development and commercialization of products to treat conditions in urology and endocrinology. Indevuss
approved products included Sanctura® and Sanctura XR® for



2



---

##### Table of Contents

overactive bladder (referred to as OAB), which is promoted by Allergan, Inc. (referred to as Allergan), Vantas® for advanced prostate cancer, Supprelin® LA for central precocious puberty (referred to as CPP), Delatestryl® for the treatment of hypogonadism and Valstar® for bladder cancer. We also acquired from Indevus a core urology and endocrinology portfolio containing multiple compounds in development including AveedTMfor hypogonadism and the octreotide implant for treatment of
acromegaly and carcinoid syndrome. All financial information presented herein reflects the operating results of Indevus from February 23, 2009 to December 31, 2009.

We have established research and development expertise in analgesics and have expanded our research and development capabilities in other
therapeutic areas such as endocrinology, oncology, and urology. As such, we believe we are well positioned to pursue research and development opportunities across these therapeutic areas.

We enhance our financial flexibility by outsourcing certain of our functions, including manufacturing and distribution. Currently, our
primary suppliers of contract manufacturing services are Novartis Consumer Health, Inc. and Teikoku Seiyaku Co., Ltd.

Through a dedicated sales force in the United States consisting of 320 specialty representatives, 365 pharmaceutical sales representatives focusing primarily on pain products, 75 sales representatives focusing primarily on urology and
oncology, 27 medical center representatives and a contract sales force of approximately 80 sales representatives, we market our branded pharmaceutical products to high-prescribing physicians in pain management, orthopedics, neurology, rheumatology,
surgery, anesthesiology, oncology, urology, endocrinology and primary care, including pediatricians. Our sales force also targets retail pharmacies and other healthcare professionals throughout the United States.

On a continuous basis, we evaluate and, where appropriate, pursue acquisition opportunities. In particular, we look to continue to enhance
our product line by acquiring or licensing rights to additional products and compounds and therefore regularly evaluate selective acquisition and license opportunities. Such acquisitions or licenses may be carried out through the purchase of assets,
joint ventures and licenses or by acquiring other companies.

Our wholly-owned subsidiary, Endo Pharmaceuticals Inc.
(referred to as EPI), commenced operations in 1997 by acquiring certain pharmaceutical products, related rights and assets of The DuPont Merck Pharmaceutical Company, which subsequently became DuPont Pharmaceuticals Company and was thereafter
purchased by the Bristol-Myers Squibb Pharma Company in 2001. EPI was formed by certain members of the then-existing management of DuPont Merck and an affiliate of Kelso & Company who were also parties to the purchase agreement under which
we acquired these initial assets.

We were incorporated in Delaware as a holding company on November 18, 1997 and have
our principal executive offices at 100 Endo Boulevard, Chadds Ford, Pennsylvania 19317 (telephone number: (610) 558-9800).

Our
Competitive Strengths

We believe that we have established a position as a market leader among specialty pharmaceutical
companies by capitalizing on our following core strengths:

Established portfolio of branded
products.We have assembled a portfolio of branded pharmaceutical products to treat and manage pain. In addition, as a result of our acquisition of Indevus, we have added several branded products to treat conditions in urology and
endocrinology. The Companys branded products include: Lidoderm®, Opana® ER and Opana®, Percocet®, Frova®, Voltaren® Gel, Supprelin® LA,
Vantas®, Hydron® Polymer Technology and Valstar®. A detailed description of each of our products is in this section under our Product Overview.



3



---

##### Table of Contents

Focused Pipeline.As a result of our focused research and development efforts,
we believe we have a promising development pipeline and are well-positioned to capitalize on our core development products. Currently, our core development pipeline consists of two New Drug Applications (referred to as NDAs) filed with the Food and
Drug Administration (FDA), two products in Phase III trials and three products in Phase II trials. For a more detailed description of our development pipeline, see the Product Overview  Products in Development discussion included
in this section.

Research and development expertise.Our research and development effort is focused on the
development of a balanced, diversified portfolio of innovative and clinically differentiated products. We are continuously seeking opportunities that deepen our penetration in the pain area as well as in the areas of oncology, urology, and
endocrinology. We will continue to capitalize on our core expertise with analgesics and expand our abilities to capture both earlier-stage opportunities and pursue other therapeutic areas. We continue to invest in research and development because we
believe it is critical to our long-term competitiveness. At December 31, 2009, our research and development and regulatory affairs staff consisted of 153 employees, based in Westbury, New York and at our corporate headquarters in Chadds Ford,
Pennsylvania. Our research and development expenses, including upfront and milestone payments were $185.3 million in 2009, $110.2 million in 2008 and $138.3 million in 2007.

We have assembled an experienced and multi-disciplined research and development team of scientists and technicians with drug discovery and
development expertise and broad experience in working with the FDA. To supplement our internal efforts, we engage the services of various independent research organizations, physicians and hospitals to conduct and coordinate our pre-clinical and
clinical studies to establish the safety and effectiveness of new products.

Drug development is time-consuming, expensive and
risky. In the development of human health products, industry practice and government regulations in the U.S. provide for the determination of effectiveness and safety of new molecular entities through preclinical tests and controlled clinical
evaluation. Before a new drug may be marketed in the U.S., recorded data on preclinical and clinical experience are included in the NDA which must be submitted to the FDA for the required approval. The process from discovery to regulatory approval
often takes ten years or longer. Drug candidates can fail at any stage of the process, and even late-stage product candidates sometimes fail to receive regulatory approval. We believe our investment in research and development, both internally and
in collaboration with others, has been productive as demonstrated by our ability to commercialize our research and development efforts by launching a number of new products and product line extensions since our founding in August 1997.

Targeted national sales and marketing infrastructure.We market our branded products directly to physicians through a sales
force of approximately 870 representatives in the United States, including a contracted field force of approximately 80 sales representatives. Through our sales force, we market our branded pharmaceutical products to more than 109,000 physicians,
which include both specialists and primary care physicians, including pediatricians. We distribute our products principally through independent wholesale distributors, but we also sell directly to retailers, clinics, government agencies, doctors and
retail and specialty pharmacies. Our marketing policy is designed to assure that products and relevant, appropriate medical information are immediately available to physicians, pharmacies, hospitals, public and private payers, and appropriate
healthcare professionals throughout the United States. We work to gain access to health authority, pharmacy benefit managers (referred to as a PBM) and managed care organizations (referred to as an MCO) formularies (lists of recommended or approved
medicines and other products), including Medicare Part D plans and reimbursement lists by demonstrating the qualities and treatment benefits of our products within their approved indications. Our managed markets staff in 2009 consisted of 44
employees.

Selective focus on generic products.Our generic product portfolio includes products focused on pain
management. We develop generic products that involve significant barriers to entry such as complex formulation, regulatory or legal challenges or difficulty in raw material sourcing. We believe products with these



4



---

##### Table of Contents

characteristics will face a lesser degree of competition and therefore provide longer product life cycles and higher profitability than commodity generic products. We have executed our generic
product development strategy successfully to date with products such as morphine sulfate extended-release tablets, which we introduced in November 1998 as a bioequivalent version of MS Contin®, a product of Purdue Pharma, L.P. Additionally, in December of 2009 we received approval of our abbreviated new drug application (referred to as an ANDA) for
mycophenolate mofetil capsules (250) mg. Mycophenolate mofetil is a bioequivalent version of Cellcept®, a
product of Hoffman-La Roche Ltd. We intend to continue to make strategic decisions to support and grow our generics business in a manner consistent with the characteristics described above.

Experienced and dedicated management team.Our senior management team has a proven track record of building businesses through
internal growth as well as through licensing and acquisitions. The Company and members of its management team have received FDA approval on more than eighteen new products and product line extensions since 1997, and as a result of several successful
product launches, have grown our total revenues from $108.4 million in 1998 to $1.46 billion in 2009.

Our Industry

Pain Management Market

According to IMS Health data, the total U.S. market for pain management pharmaceuticals, excluding over-the-counter products, totaled $21.4 billion in 2009. This represents an approximate 6% compounded annual growth rate since 2004.
Our primary area of focus within this market is analgesics and, specifically, opioid analgesics. In 2009, analgesics were the third most prescribed medication in the United States with over 305 million prescriptions written for this
classification.

Opioid analgesics is a segment that comprised approximately 80% of the analgesic
prescriptions for 2009 and represented almost 58% of the overall U.S. pain market. Total U.S. sales for the opioid analgesic segment were $8.1 billion in 2009, representing a compounded annual growth rate of 7% since 2004. With the launch of
Voltaren® Gel in 2008, Endo gained presence in the osteoarthritis market competing in the analgesic
non-narcotic and anti-arthritic classes with over 174 million prescriptions written in 2009, representing 42% of the U.S. pain market. The U.S. sales for these markets were $13.4 billion with a compound annual growth rate of 5% since 2004.

Opioid analgesic products are used primarily for the treatment of pain associated with orthopedic fractures and sprains, post
herpetic-neuralgia, back injuries, migraines, joint diseases, cancer and various surgical procedures.

The growth in this
segment has been primarily attributable to:



| |  |  | increasing physician recognition of the need and patient demand for effective treatment of pain;
| | - |  | ------------------------------------------------------------------------------------------------



| |  |  | aging population (according to the U.S. Census Bureau, from 2000 to 2010 the population aged 65 and older reached 40 million people, representing
14% growth over this period.);
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | introduction of new and reformulated branded products; and
| | - |  | ----------------------------------------------------------



| |  |  | increasing incidence of chronic pain conditions, such as cancer, arthritis and low back pain.
| | - |  | ---------------------------------------------------------------------------------------------

Urology, Endocrinology and Oncology Markets

Through our acquisition of Indevus as well as other business development activities in 2009, Endo entered the urology, endocrinology and oncology markets, specifically the prostate cancer therapeutic area
with Vantas®, the bladder oncology space with Valstar® and UrocidinTM, and the central precocious puberty therapeutic area with Supprelin® LA. We also anticipate entering the testosterone replacement therapy (referred to as TRT) market and treating hypogonadism with our development products Aveed® and Fortesta®.



5



---

##### Table of Contents

Central Precocious Puberty (CPP)

In a recent study, the incidence of CPP reported from national registries in the European Union subdivided by gender and age at diagnosis was
approximately 1 per 10,000 in girls who were younger than 4 years, thereafter gradually rising to 8 per 10,000 for girls aged 5 to 9 years. The incidence in boys younger than 8 years was approximately 1 per 10,000. Recent market
research indicates that girls in the United States are physically maturing at an earlier age than they did 30 years ago, and the number of girls diagnosed with precocious puberty is on the rise. In the U.S., 6,500 patients are estimated to have CPP
with approximately 2,000 diagnosed annually. CPP is treated by pediatric endocrinologists in the U.S. where there are approximately 500 practicing pediatric endocrinologists. In 2008, the market for drugs to treat CPP, reported by IMS Health NSP,
was approximately $119 million in the U.S.

Prostate Cancer

Prostate cancer is the most common cancer for men and the second leading cause of cancer deaths in men. According to the American Cancer
Society, every year approximately 200,000 men in the U.S. are diagnosed with prostate cancer and 30,000 die from this disease.

Bladder Cancer Overview

There are more than 500,000 people in the United States alive with a history of
bladder cancer, which is the fourth most common cancer among men and the eleventh most common among women in the United States. The American Cancer Society estimated approximately 70,000 new cases of bladder cancer and 14,330 deaths from this
disease in the United States in 2009.

Rates of bladder cancer are expected to increase due to the aging population; more than
70% of cases of bladder cancer are diagnosed in people age 65 or older. The number of patients in the total non-invasive bladder cancer population will thus increase due to the rising incidence as well as high recurrence rates, leading to a
substantial prevalent population.

BCG-refractory CIS Bladder Cancer

Carcinoma in situ (CIS) of the urinary bladder is a rare form of bladder cancer, affecting about seven of every 100 patients diagnosed with
bladder cancer. Standard treatment of CIS of the urinary bladder is transurethral resection of the bladder tumor (TURBT), followed by one or two courses of immunotherapy with the vaccine bacillus Calmette-Guérin (referred to as BCG). About 50
percent of patients will become refractory to BCG therapy. VALSTAR intravesical therapy is the only FDA-approved treatment of carcinoma in situ of the urinary bladder in patients who are refractory to BCG immunotherapy when cystectomy  or
bladder removal  is not an option.

Testosterone Replacement Overview

In the United States alone, it is estimated that 13.8 million men have low testosterone levels; however, only about 9% are currently
being treated. Hypogonadism, or low testosterone, is under diagnosed and under treated. Factors contributing to this include a lack of screening for low testosterone and the perceived risk of prostate cancer associated with current treatment
strategies. In the United States, testosterone replacement therapy (or TRT) sales have dramatically increased, from approximately $450 million in 2004 to over $1,041 million in 2009, reflecting a growth rate of 28.5%.



6



---

##### Table of Contents

Product Overview

The following table summarizes select products in our marketed portfolio as well as select products in development:



|                                        |  |                                           |  |          |  |          
|--------------------------------------- |  | ----------------------------------------- |  | -------- |  | ---------
|Marketed Products                       |  | Active Ingredients(s)                     |  | Branding |  | Status   
|Lidoderm®                               |  | lidocaine 5%                              |  | Branded  |  | Marketed 
|Opana® ER(1)                            |  | oxymorphone hydrochloride                 |  | Branded  |  | Marketed 
|Opana®                                  |  | oxymorphone hydrochloride                 |  | Branded  |  | Marketed 
|Percocet®                               |  | oxycodone hydrochloride and acetaminophen |  | Branded  |  | Marketed 
|Voltaren® Gel(2)                        |  | diclofenac sodium topical gel 1%          |  | Branded  |  | Marketed 
|Frova®(3)                               |  | frovatriptan succinate                    |  | Branded  |  | Marketed 
|Supprelin® LA                           |  | histrelin acetate                         |  | Branded  |  | Marketed 
|Vantas®                                 |  | histrelin acetate                         |  | Branded  |  | Marketed 
|Sanctura XR®(4)                         |  | trospium chloride                         |  | Branded  |  | Marketed 
|Sanctura®(5)                            |  | trospium chloride                         |  | Branded  |  | Marketed 
|Valstar®                                |  | valrubicin                                |  | Branded  |  | Marketed 
|Percodan®                               |  | oxycodone hydrochloride and aspirin       |  | Branded  |  | Marketed 
|Endocet®                                |  | oxycodone hydrochloride and acetaminophen |  | Generic  |  | Marketed 
|Morphine Sulfate ER                     |  | morphine sulfate                          |  | Generic  |  | Marketed 
|                                        |  |                                           | 
|Products in Development                 |  | Active Ingredients(s)                     |  | Branding |  | Status   
|AveedTM(6)                              |  | testosterone undecanoate                  |  | Branded  |  | NDA Filed
|FortestaTM(7)                           |  | 2% testosterone                           |  | Branded  |  | NDA Filed
|Octreotide implant  acromegaly         |  | octreotide acetate                        |  | Branded  |  | Phase III
|UrocidinTM(8)                           |  | mycobacterial cell wall-DNA complex       |  | Branded  |  | Phase III
|Axomadol(9)                             |  | axomadol phosphate                        |  | Branded  |  | Phase II 
|Octreotide implant  carcinoid syndrome |  | octreotide acetate                        |  | Branded  |  | Phase II 



|(1) | Marketed pursuant to an alliance agreement with Penwest Pharmaceuticals Co.
|--- | ---------------------------------------------------------------------------

|(2) | Licensed marketing rights from Novartis Consumer Health, Inc.
|--- | -------------------------------------------------------------

|(3) | Licensed marketing rights from Vernalis Development Limited.
|--- | ------------------------------------------------------------

|(4) | Licensed marketing and development rights from Supernus Pharmaceuticals Inc.
|--- | ----------------------------------------------------------------------------

|(5) | Licensed marketing and development rights from Madaus GmbH.
|--- | -----------------------------------------------------------

|(6) | Licensed marketing and development rights from BayerSchering Pharma AG.
|--- | -----------------------------------------------------------------------

|(7) | Licensed marketing and development rights from Strakan International Limited.
|--- | -----------------------------------------------------------------------------

|(8) | Licensed marketing and development rights from Bioniche Life Sciences.
|--- | ----------------------------------------------------------------------

|(9) | Licensed marketing and development rights from Grünenthal GMBH.
|--- | ---------------------------------------------------------------

Branded Products

Lidoderm®.Lidoderm® was launched in September 1999. A topical patch product containing lidocaine, Lidoderm® was the first FDA-approved product for the relief of the pain associated with post-herpetic neuralgia, a condition thought to result after nerve fibers are damaged
during a case of Herpes Zoster (commonly known as shingles). Lidoderm® is also currently protected by Orange
Book-listed patents for, among other things, a method of treating post-herpetic neuralgia and the composition of the lidocaine-containing patch. The last of these patents is set to expire in 2015. In 2009, 2008 and 2007, Lidoderm® net sales were $763.7 million, $765.1 million and $705.6 million, respectively. Lidoderm® accounted for approximately 52% of our 2009 total revenues.



7



---

##### Table of Contents

Opana® and Opana® ER.Opana® ER and
Opana® were launched during the second half of 2006 and have shown steady prescription growth trends since their
launch. Opana® ER is indicated for the relief of moderate-to-severe pain in patients requiring continuous,
around-the-clock opioid treatment for an extended period of time. Opana® ER represents the first drug in which
oxymorphone is available in an oral, extended-release formulation and is available in 5 mg, 7.5 mg, 10 mg, 15 mg, 20 mg, 30 mg and 40 mg tablets. Opana® (the immediate-release version) is indicated for the relief of moderate-to-severe acute pain where the use of an opioid is appropriate and is available in 5mg and
10mg tablets. Opana® ER and Opana® net sales were $230.6 million, $180.4 million, and $107.1 million in 2009, 2008, and 2007, respectively. Opana® ER and Opana® accounted for
approximately 16% of our 2009 total revenues.

Percocet®. We consider Percocet® to be a gold standard of pain management. Launched in 1976, Percocet® is approved for the treatment of moderate-to-moderately severe pain. The Percocet® family of products had net sales of $127.1 million, $130.0 million and $121.7 million in the years 2009, 2008 and 2007, respectively. The Percocet® franchise accounted for approximately 9% of our 2009 total revenues.

Voltaren®Gel. We launched Voltaren® Gel in March 2008 upon closing of the license and supply agreement with Novartis AG and Novartis Consumer Health, Inc. Voltaren® Gel (diclofenac sodium topical gel) 1% received regulatory approval in October 2007 from the FDA, becoming the
first topical prescription treatment for use in treating pain associated with osteoarthritis and the first new product approved in the U.S. for osteoarthritis since 2001. Voltaren® Gel has been granted marketing exclusivity in the U.S. as a prescription medicine until at least October 2010. It is the first prescription topical osteoarthritis
treatment to have proven its effectiveness in both the knees and joints of the hands through clinical trials. Voltaren® Gel delivers effective pain relief with a favorable safety profile as its systemic absorption is 94% less than the comparable oral diclofenac treatment. In 2009
and 2008, net sales of Voltaren® Gel were $78.9 million and $23.8 million, respectively.

Frova®. We began shipping Frova®
upon closing of the license agreement with Vernalis in mid-August 2004, and we initiated our promotional efforts in September 2004. Frova® is indicated for the acute treatment of migraine headaches in adults. We believe that Frova® has differentiating features from other migraine products, including the longest half-life in the triptan class and a very low reported migraine recurrence rate in
its clinical program. In 2009, 2008 and 2007, Frova® net sales were $57.9 million, $58.0 million and $52.4
million, respectively.

Supprelin® LA.Supprelin® LA was
launched in the U.S. in June 2007. Supprelin® LA is a soft, flexible 12-month hydrogel implant based on our
patented Hydron Polymer Technology that delivers LHRH (luteinizing hormone-releasing hormone) agonist and is indicated for the treatment of CPP. CPP is the early onset of puberty in young children resulting in the development of secondary sex
characteristics and short stature, if left untreated. The development of these secondary sex characteristics is due to an increase in the secretion of sex hormones, the cause of which is unknown. Meetings have been held with various European
regulatory authorities to seek scientific advice regarding the strategies for filing marketing applications for Supprelin® LA in Europe. Various strategies are being evaluated and include seeking marketing partners in territories outside of the United States. We market Supprelin® LA in the U.S. through a specialty sales force primarily to pediatric endocrinologists. Net sales of
Supprelin® LA were $27.8 million in 2009.

Vantas®.Vantas® was launched
in the U.S. in November 2004. Vantas® is a soft, flexible 12-month hydrogel implant based on our patented
Hydron® Polymer Technology that delivers histrelin, a luteinizing hormone-releasing hormone agonist, or LHRH
agonist and is indicated for the palliative treatment of advanced prostate cancer. We are party to a License, Supply and Distribution Agreement with Orion Corporation (referred to as Orion) granting them the rights to market Vantas® throughout Europe as well as certain other countries. As of August 2007, Vantas was approved in Thailand, Singapore
and Malaysia and approval is pending in Taiwan, Korea, Hong Kong and China. In addition, Teva-Tuteur has received approval for Vantas in Argentina. Net sales of Vantas® were $20.0 million in 2009, primarily in the United States.



8



---

##### Table of Contents

Valstar®.Valstar® a sterile solution for intravesical instillation of valrubicina chemotherapeutic anthracycline derivative, is the only product currently approved by the FDA for
therapy of bacillus Calmette-Guerin (BCG)-refractory carcinoma in situ(CIS) of the urinary bladder. Valstar®, originally approved by the FDA in 1998, was withdrawn from the market in 2002 due to a manufacturing problem involving impurity issues in the original formulation and was placed on the FDA Drug Shortages List. In April 2007, a supplemental
New Drug Application (sNDA) to the FDA seeking approval to reintroduce Valstar® and in February 2009, the FDA
approved this sNDA for Valstar®. In September 2009, we launched Valstar® for the treatment of patients with BCG-refractory CIS of the bladder. We continue to work closely with the manufacturer to build quantities of the
product to support the launch of Valstar®. Net sales of Valstar® were $3.4 million in 2009.

Hydron® Implant. The Hydron® Implant is a subcutaneous, retrievable, non-biodegradable, hydrogel reservoir drug delivery device designed to
provide sustained release of a broad spectrum of drugs continuously, at constant, predetermined rates. This technology serves as the basis for two of our currently marketed products: Vantas® and Supprelin® LA.

The Hydron® Implant is the only soft, flexible, reservoir-based drug delivery system available for parenteral administration. Our implant is designed for easy, in-office
physician insertion under local anesthesia. The hydrogel polymer compositions possess flexible, tissue-like characteristics providing excellent biocompatibility and patient comfort. The Hydron® Implant delivers drugs at zero-order kinetics and the duration of delivery can be predetermined over a range of times.

Sanctura®.Sanctura®, a
muscarinic receptor antagonist for the treatment of OAB, was launched in August 2004. Sanctura® is indicated for
the treatment of OAB with symptoms of urinary incontinence, urgency and urinary frequency. Sanctura® belongs to
the anticholinergic class of compounds and binds specifically to muscarinic receptors. These compounds relax smooth muscles, such as the detrusor muscle in the bladder, thus decreasing bladder contractions. Overactive or unstable detrusor muscle
function is believed to be one of the principal causes of OAB symptoms. Current treatments in the U.S. for OAB include compounds in the same therapeutic class as Sanctura®. In December 1999, we licensed the exclusive rights to develop and market Sanctura® in the U.S. from Madaus GmbH (referred to as Madaus). In September 2007, we sublicensed these rights to Allergan, Inc. We receive royalties from Allergan on net sales
of Sanctura® in the United States. We had co-promoted Sanctura® in the U.S. with our marketing partner, Allergan Inc., however, our right to co-promote expired in September 2009.

Sanctura XR®.Sanctura XR® is a
once-daily formulation of Sanctura®, our currently marketed product for the treatment of OAB. Sanctura XR® belongs to a class of anticholinergic compounds known as muscarinic receptor antagonists. Current treatments in the
U.S. for OAB include compounds in the same therapeutic class as Sanctura XR®. Sanctura XR® is a quaternary ammonium compound, which we believe provides significant differentiation to the tertiary ammonium
compounds currently being marketed for the treatment of OAB. Quaternary ammonium compounds are highly charged and hydrophilic with a limited ability to cross lipid membranes. The formulation of Sanctura XR® was developed under a development and license agreement with Supernus Pharmaceuticals, Inc. (referred to as Supernus), formerly Shire Laboratories, Inc.
and we received exclusive, worldwide rights. In November 2006, we licensed to Madaus the exclusive rights to sell Sanctura XR® in all countries outside of the United States, except for Canada, Japan, Korea and China. We receive royalties from Madaus on the net sales of Sanctura XR® in these countries. In September 2007, we sublicensed to Allergan the U.S. rights to Sanctura XR®. We receive royalties from Allergan on the net sales of Sanctura XR® in the United States. In May 2008, we sublicensed to Allergan the rights to the Sanctura® franchise in Canada and could be required to pay future commercialization milestone payments to us. We had co-promoted Sanctura XR® in the U.S. with our marketing partner, Allergan Inc., however, our right to co-promote expired in September 2009.

Other.The balance of our other branded portfolio consists of a number of products, none of which accounted for
more than 1% of our total net sales in the 2009 fiscal year.



9



---

##### Table of Contents

Generic Products

When a branded pharmaceutical product is no longer protected by any relevant patents, normally as a result of a patents expiration, or by other, non-patent market exclusivity, third
parties have an opportunity to introduce generic counterparts to such branded product. Generic pharmaceutical products are therapeutically equivalent to their brand-name counterparts and are generally sold at prices significantly less than the
branded product. Accordingly, generic pharmaceuticals may provide a safe, effective and cost-effective alternative to users of branded products.

One of our generic products is an oxycodone hydrochloride and acetaminophen product, Endocet®, which accounted for approximately 6% of our total revenues in 2009. Another of our generic products is morphine sulfate extended-release tablets, which accounted for
2% of our total revenues in 2009. The balance of our generic portfolio consists of a few other products, none of which accounted for more than 1% of our total revenues for 2009.

We principally pursue the development and marketing of generic pharmaceuticals that have one or more barriers to entry. The characteristics
of the products that we may target for generic development may include:



| |  |  | complex formulation or development characteristics;
| | - |  | ---------------------------------------------------



| |  |  | regulatory or legal challenges; or
| | - |  | ----------------------------------



| |  |  | difficulty in raw material sourcing.
| | - |  | ------------------------------------

We believe products with these characteristics will face a lesser degree of competition, therefore providing longer product life cycles and/or higher profitability than commodity generic products. As of
December 31, 2009, we have approximately forty projects under development, including fifteen of which are currently the subject of ANDAs on file with the FDA. Thirteen of these fifteen ANDA submissions are expected to have launch dates in the
foreseeable future.

Products in Development

Our pipeline portfolio contains products and product candidates that have differentiating features for multiple therapeutic areas, including pain, oncology, urology and endocrinology. The Companys
most promising pipeline products, including those recently obtained through our acquisition of Indevus are as follows:

AveedTM. AveedTMis a novel, long-acting
injectable testosterone preparation for the treatment of male hypogonadism. If approved, AveedTMwould be the first long-acting testosterone preparation available in the U.S. in the growing market for testosterone replacement therapies. The U.S. rights to AveedTMwere acquired from Schering AG, Germany, in July 2005. Although not
yet approved in the U.S., AveedTMis approved in and
currently marketed in Europe and a number of other countries. In January 2010, the U.S. patent office issued a Notice of Allowance covering the formulation of AveedTM. Accordingly, Aveeds patent should expire no earlier than late 2025.

Male hypogonadism is an increasingly recognized medical condition characterized by a reduced or absent secretion of testosterone from the
testes. Reduced testosterone levels can lead to health problems and significantly impair quality of life. Common effects of hypogonadism include decreased sexual desire, erectile dysfunction, muscle loss and weakness, depression, and an increased
risk of osteoporosis. In the United States alone, it is estimated that 13.8 million men have low testosterone levels; however, only about 9% are currently being treated.

In June 2008, an approvable letter was received from the FDA indicating that the AveedTMNDA may be approved if the Company is able to adequately respond to
certain clinical deficiencies related to the product. In September 2008, an agreement was reached with the FDA with regard to the additional data and risk management strategy. In March 2009, the FDA accepted for review the complete response
submission to the new drug application for AveedTM.



10



---

##### Table of Contents

On December 2, 2009, we received a complete response letter from
the FDA regarding AveedTM. In the complete response
letter, the FDA has requested information from Endo to address the agencys concerns regarding rare but serious adverse events, including post-injection anaphylactic reaction and pulmonary oil microembolism. The letter also specified that the
proposed Risk Evaluation and Mitigation Strategy (referred to as REMS) is not sufficient. The Company is continuing to evaluate how best to address the concerns of the FDA and intends to have future dialogue with the agency regarding a possible
regulatory pathway. As a result of the new developments, the Company recorded a $65 million impairment charge during the fourth quarter of 2009. Offsetting this charge is a credit of $125 million, reflecting a reduction in the liability on our
balance sheet associated with contingent consideration payable to former Indevus shareholders in the event that the product is approved by the FDA on or before February 23, 2012, under the Nebido Contingent Cash Consideration Agreement entered
into in connection with our acquisition of Indevus. The outcome of future communications with the FDA could have a material impact on (1) managements assessment of the overall probability of approval, (2) the timing of such approval,
(3) the targeted indication or patient population and (4) the likelihood of additional clinical trials.

Fortesta. Fortesta is a patented two percent (2%) testosterone transdermal gel for testosterone replacement therapy in male hypogonadism, which utilizes a metered dose delivery system designed to permit
accurate dose adjustment to individual patient requirements. In August 2009, we entered into a License and Supply Agreement (referred to as the ProStrakan Agreement) with Strakan International Limited, a subsidiary of ProStrakan Group plc (referred
to as ProStrakan), for the exclusive right to commercialize Fortesta in the U.S.

In October 2009, we received a
Complete Response letter from the FDA regarding the NDA for Fortesta. The letter will require us to undertake a re-analysis of the existing clinical samples, and we will need to undertake a wash-off study to evaluate the risk of transference.
The Company will continue to work closely with the FDA to address its questions, and we expect to file a complete response in mid-2010. Under the ProStrakan Agreement, the milestone payment to ProStrakan related to FDA approval of Fortesta is
reduced the longer such approval takes.

Octreotide implant.The octreotide implant utilizes
our patented Hydron® Polymer Technology to deliver six months of octreotide, a long-acting octapeptide that
mimics the natural hormone somatostatin to block production of growth hormone (referred to as GH), for the treatment of acromegaly.

Acromegaly is a chronic hormonal disorder that occurs when a tumor of the pituitary gland causes the excess production of GH. It usually affects middle-aged adults and, if untreated, causes enlargement of certain bones, cartilage, muscles,
organs and other tissue, leading to serious illness and potential premature death. There are approximately 1,000 new acromegalic patients diagnosed per year and 16,000 total patients in the United States.

In November 2007, positive results from the Phase II trial in patients with acromegaly showed that the octreotide implant effectively
suppressed levels of GH and IGF-1 at rates similar to those seen with current FDA approved injectable formulations of octreotide. In addition, the drug was well tolerated. In September 2008, a Phase III clinical trial was initiated. The trial is
designed to test the efficacy, safety and tolerability of the octreotide implant in patients with acromegaly. Approximately 34 clinical sites in six countries are participating in the open-label trial. The trial will include approximately 140
patients in the U.S. and Europe and enrollment is expected to be complete in mid-2010.

The octreotide implant is also
currently in phase II clinical trials for the treatment of carcinoid syndrome. Carcinoid syndrome is a group of symptoms associated with carcinoid tumors, which are tumors of the small intestine, colon, appendix, and bronchial tubes in the lungs
that originate from cells of the neuroendocrine system. Carcinoid syndrome occurs in approximately 10% of the patients with carcinoid tumors, usually after the tumor has spread to the liver or lung.



11



---

##### Table of Contents

Urocidin. Urocidin is a patented formulation of Mycobacterial
Cell Wall-DNA Complex (referred to as MCC) developed by Bioniche Life Sciences Inc. and Bioniche Urology Inc. (collectively referred to as Bioniche) for the treatment of non-muscle-invasive bladder cancer that is currently undergoing Phase III
clinical testing.

In July 2009, the Company entered into a License, Development and Supply Agreement with Bioniche, whereby we
licensed from Bioniche the exclusive rights to develop and market Urocidin in the U.S. with an option for global rights. We exercised our option for global rights in the first quarter of 2010.

Axomadol. Axomadol is a patented new chemical entity discovered by Grünenthal GMBH, (referred to as Grünenthal) and
currently in Phase II development for the treatment of moderate to moderately severe chronic pain and diabetic peripheral neuropathic pain. In February 2009, we entered into a Development, License and Supply Agreement with Grünenthal, granting
us the exclusive right in North America to develop and market Axomadol.

Other.We also have other products,
including certain undisclosed products in our therapeutic areas of interest in early stages of development.

We cannot predict
when or if any of these products will be approved by the FDA.

Competition

The pharmaceutical industry is highly competitive. Our products compete with products manufactured by many other companies in highly
competitive markets throughout the United States. Our competitors vary depending upon therapeutic and product categories. Competitors include the major brand name and generic manufacturers of pharmaceuticals doing business in the United States,
including Abbott Laboratories, Johnson & Johnson, King Pharmaceuticals, Inc., Mallinckrodt Inc., Pfizer, Inc., Purdue Pharma, L.P., Cephalon, Inc., and Watson Pharmaceuticals, Inc.

We compete principally through our targeted product development and acquisition and in-licensing strategies. The competitive landscape in
the acquisition and in-licensing of pharmaceutical products has intensified in recent years as there has been a reduction in the number of compounds available and an increase in the number of companies and the collective resources bidding on
available assets. In addition to product development and acquisitions, other competitive factors in the pharmaceutical industry include product efficacy, safety, ease of use, price, demonstrated cost-effectiveness, marketing effectiveness, service,
reputation and access to technical information.

The competitive environment of the branded product business requires us
continually to seek out technological innovations and to market our products effectively. However, some of our current branded products not only face competition from other brands, but also from generic versions. Generic versions are generally
significantly less expensive than branded versions, and, where available, may be required in preference to the branded version under third-party reimbursement programs, or substituted by pharmacies. If competitors introduce new products, delivery
systems or processes with therapeutic or cost advantages, our products can be subject to progressive price reductions or decreased volume of sales, or both. Most new products that we introduce must compete with other products already on the market
or products that are later developed by competitors. Manufacturers of generic pharmaceuticals typically invest far less in research and development than research-based pharmaceutical companies and therefore can price their products significantly
lower than branded products. Accordingly, when a branded product loses its market exclusivity, it normally faces intense price competition from generic forms of the product. To successfully compete for business with managed care and pharmacy
benefits management organizations, we must often demonstrate that our products offer not only medical benefits but also cost advantages as compared with other forms of care.



12



---

##### Table of Contents

Newly introduced generic products with limited or no other generic competition are typically
sold at higher selling prices. As competition from other generic products increases, selling prices of the generic products typically decline. Consequently, the maintenance of profitable operations in generic pharmaceuticals depends, in part, on our
ability to select, develop and launch new generic products in a timely and cost efficient manner and to maintain efficient, high quality manufacturing relationships.

On October 17, 2006, we became aware that, in response to an independent inquiry, the FDAs Office of Generic
Drugs (OGD) had proposed that a study of blood levels of lidocaine should be used as the key measure in proving bioequivalence of a generic version of Lidoderm® On December 19, 2006, we submitted a Citizen Petition with the U.S. Food and Drug Administration requesting that the FDA apply existing bioequivalence
regulations to any Abbreviated New Drug Application (ANDA) seeking regulatory approval of a generic drug product that references Lidoderm®. The petition emphasizes that the proposed new standard deviates from applicable regulations and OGDs past practices, both of which contemplate demonstration of
bioequivalence for a topically acting product like Lidoderm® through a comparative clinical efficacy study. We
believe blood levels of the active ingredient, lidocaine, cannot be used as the key measure in proving bioequivalence. To appropriately assess the efficacy and safety of any generic version of Lidoderm®, we believe that it is critical that the FDA require any ANDA satisfy the regulations by following these additional criteria to those that FDA has
proposed by (1) conducting comparative clinical studies demonstrating identical safety and efficacy between the generic version and Lidoderm®, and (2) for an applicant relying on Lidoderm® as its Reference Listed Drug, to show that its product produces the same local analgesic effect as Lidoderm® without producing a complete sensory block, in order to assure that the generic product has the same labeling, efficacy and safety profile as Lidoderm®. On August 30, 2007, we submitted an amended Citizen Petition to the FDA requesting that the agency withdraw
the bioequivalence recommendations, convene a joint meeting of the Dermatologic and Ophthalmic Drugs Advisory Committee (DODAC) and Advisory Committee for Pharmaceutical Science (ACPS) to discuss development of the appropriate method(s) for
demonstrating bioequivalence for patch dosage forms with local routes of administration, decline to approve or stay the approval of any ANDA or 505(b)(2) application referencing Lidoderm® that does not contain studies with clinical safety and efficacy endpoints that demonstrate bioequivalence to Lidoderm® and if the FDA contemplates an alternative to bioequivalence studies with clinical endpoints for Lidoderm®, only develop such method through a valid public process, with input from FDA advisory committees, including DODAC and ACPS. Other than an
acknowledgement of receipt, we have received no response from FDA to either the initial Citizen Petition or the amended Citizen Petition.

The Company is aware of certain competitive activities involving Lidoderm®, Opana® ER, and Sanctura XR®. For a full description of these competitive activities, including the litigation related to paragraph IV filings, see Note 14 of the Consolidated Financial
Statements included in Part IV, Item 15 of this Annual Report on Form 10-K.

Seasonality

Although our business is affected by the purchasing patterns and concentration of our customers, our business is not materially impacted by
seasonality.

Major Customers

We sell our products directly to a limited number of large pharmacy chains and through a limited number of wholesale drug distributors who, in turn, supply products to pharmacies, hospitals, governmental
agencies and physicians. Net sales to customers who accounted for 10% or more of our net sales during the years ended December 31 are as follows:



|                              |  |      |   |  |      |   |  |      |  
|----------------------------- |  | ---- | - |  | ---- | - |  | ---- | -
|                              |  | 2009 |   |  | 2008 |   |  | 2007 |  
|Cardinal Health, Inc.         |  | 35   | % |  | 36   | % |  | 34   | %
|McKesson Corporation          |  | 29   | % |  | 31   | % |  | 31   | %
|AmerisourceBergen Corporation |  | 16   | % |  | 15   | % |  | 15   | %



13



---

##### Table of Contents

As a result of consolidation among wholesale distributors as well as rapid growth of large
retail drug store chains, a small number of large wholesale distributors control a significant share of the market, and the number of independent drug stores and small drug store chains has decreased. Some wholesale distributors have demanded that
pharmaceutical manufacturers, including us, enter into what are referred to as distribution service agreements pursuant to which the wholesale distributors provide the pharmaceutical manufacturers with specific services, including the provision of
periodic retail demand information and current inventory levels and other information. To date we have entered into five such agreements.

Patents, Trademarks, Licenses and Proprietary Property

As of February 19, 2010, we held approximately: 50
U.S. issued patents, 40 U.S. patent applications pending, 287 foreign issued patents, and 127 foreign patent applications pending. In addition, as of February 19, 2010, we have licenses for approximately: 70 U.S. issued patents, 31 U.S. patent
applications pending, 147 foreign issued patents and 48 foreign patent applications pending.

The effect of these issued
patents is that they provide us with patent protection for the claims covered by the patents. The coverage claimed in a patent application can be significantly reduced before the patent is issued. Accordingly, we do not know whether any of the
applications we acquire or license will result in the issuance of patents, or, if any patents are issued, whether they will provide significant proprietary protection or will be challenged, circumvented or invalidated. Because unissued U.S. patent
applications are maintained in secrecy for a period of eighteen months and U.S. patent applications filed prior to November 29, 2000 are not disclosed until such patents are issued, and since publication of discoveries in the scientific or
patent literature often lags behind actual discoveries, we cannot be certain of the priority of inventions covered by pending patent applications. Moreover, we may have to participate in interference proceedings declared by the United States Patent
and Trademark Office to determine priority of invention, or in opposition proceedings in a foreign patent office, either of which could result in substantial cost to us, even if the eventual outcome is favorable to us. There can be no assurance that
the patents, if issued, would be held valid by a court of competent jurisdiction. An adverse outcome could subject us to significant liabilities to third parties, require disputed rights to be licensed from third parties or require us to cease using
such technology.

We believe that our patents, the protection of discoveries in connection with our
development activities, our proprietary products, technologies, processes and know-how and all of our intellectual property are important to our business. All of our brand products and certain generic products, such as Endocet® and Endodan®, are sold under trademarks. To achieve a competitive position, we rely on trade secrets, non-patented proprietary know-how and continuing technological innovation,
where patent protection is not believed to be appropriate or attainable. In addition, as outlined above, we have a number of patent licenses from third parties, some of which may be important to our business. See Note 6 in Part IV Item 15 of
this Annual Report on Form 10-K. There can be no assurance that any of our patents, licenses or other intellectual property rights will afford us any protection from competition.

We rely on confidentiality agreements with our employees, consultants and other parties to protect, among other things, trade secrets and
other proprietary technology. There can be no assurance that these agreements will not be breached, that we will have adequate remedies for any breach, that others will not independently develop equivalent proprietary information or that other third
parties will not otherwise gain access to our trade secrets and other intellectual property.

We may find it necessary to
initiate litigation to enforce our patent rights, to protect our intellectual property or to determine the scope and validity of the proprietary rights of others. Litigation is costly and time-consuming, and there can be no assurance that our
litigation expenses will not be significant in the future or that we will prevail in any such litigation. See Note 14. Commitments and Contingencies-Legal Proceedings, included in the consolidated financial statements in Part IV, Item 15 of
this Annual Report on Form 10-K.



14



---

##### Table of Contents

Governmental Regulation

The manufacture, development, testing, packaging, labeling, distribution, sales and marketing of our products and our ongoing product development activities are subject to extensive and rigorous
regulation at both the federal and state levels. The Federal Food, Drug and Cosmetic Act, the Controlled Substances Act and other federal and state statutes and regulations govern or influence the testing, manufacture, safety, packaging, labeling,
storage, record keeping, approval, advertising, promotion, sale and distribution of pharmaceutical products. Noncompliance with applicable requirements can result in fines, recall or seizure of products, total or partial suspension of production
and/or distribution, refusal of the government to enter into supply contracts or to approve NDAs and ANDAs, civil sanctions and criminal prosecution.

FDA approval is typically required before each dosage form or strength of any new drug can be marketed. Applications for FDA approval must contain information relating to efficacy, safety, toxicity,
pharmacokinetics, product formulation, raw material suppliers, stability, manufacturing processes, packaging, labeling, and quality control. The FDA also has the authority to require post-approval testing after marketing has begun and to revoke
previously granted drug approvals. Product development and approval within this regulatory framework requires a number of years and involves the expenditure of substantial resources.

The current FDA standards of approving new pharmaceutical products are more stringent than those that were applied in the past. These
standards were not applied to many established products currently on the market, including certain opioid products. As a result, the FDA does not have as extensive safety databases on these products as on some products developed more recently.
Accordingly, we believe the FDA has recently expressed an intention to develop such databases for certain of these products, including many opioids. In addition, the lack of such databases may lead to more requests for post-marketing testing.

In particular, the FDA has expressed interest in specific chemical structures that may be present as impurities in a number
of opioid narcotic active pharmaceutical ingredients, such as oxycodone, which based on certain structural characteristics, may indicate the potential for having mutagenic effects. If, after testing, such effects are ultimately demonstrated to
exist, more stringent controls of the levels of these impurities may be required for FDA approval of products containing these impurities, such as oxymorphone. Also, formulation or manufacturing changes and/or product modifications may be necessary
for new or existing products containing such impurities. The FDAs more stringent requirements together with any additional testing or remedial measures that may be necessary could result in increased costs for, or delays in, obtaining approval
for certain of our products in development. Although we do not believe that the FDA would seek to remove a currently marketed product from the market unless such mutagenic effects are believed to indicate a significant risk to patient health, we
cannot make any such assurance.

We cannot determine what effect changes in regulations or legal interpretations, when and if
promulgated, may have on our business in the future. Changes could, among other things, require expanded or different labeling, additional testing, the recall or discontinuance of certain products, additional record keeping and expanded
documentation of the properties of certain products and scientific substantiation. Such changes, or new legislation, could have a material adverse effect on our business, financial condition, results of operations and cash flows. In December 2003,
Congress passed measures intended to speed the process by which generic versions of brand name drugs are introduced to the market. Among other things, these measures are intended to limit regulatory delays of generic drug applications and penalize
companies that reach agreements with makers of brand name drugs to delay the introduction of generic versions. These changes could result in increased generic competition for our branded and generic products and could have a material adverse effect
on our business, financial condition, results of operations and cash flows. In addition, on September 27, 2007, Congress enacted the Food and Drug Administration Amendments Act of 2007 (referred to as FDAAA) that re-authorized requirements for
testing drug products in children, where appropriate, and included new requirements for post-approval studies or clinical trials of drugs that pose serious safety risks, and authority to require Risk Evaluation and Mitigation Strategies (REMS) to
ensure that the benefits of a drug outweigh the risks of the drug all of which may increase the time and cost necessary for new drug development as well as the cost of maintaining regulatory compliance for a marketed product.



15



---

##### Table of Contents

The evolving and complex nature of regulatory requirements, the broad authority and
discretion of the FDA and the generally high level of regulatory oversight results in a continuing possibility that from time to time, we will be adversely affected by regulatory actions despite ongoing efforts and commitment to achieve and maintain
full compliance with all regulatory requirements.

NDA Process

FDA approval is typically required before any new drug can be marketed. An NDA is a filing submitted to the FDA to obtain approval of new
chemical entities and other innovations for which thorough applied research is required to demonstrate safety and effectiveness in use. The NDA must contain complete preclinical and clinical safety and efficacy data or a reference to such data.
Before the dosing of a new drug in healthy human subjects or patients may begin, stringent government requirements for preclinical data must be satisfied. The preclinical data, typically obtained from studies in animals, as well as from laboratory
studies, are submitted in an Investigational New Drug application, or IND, or its equivalent in countries outside the United States where clinical trials are to be conducted. The preclinical data must provide an adequate basis for evaluating both
the safety and the scientific rationale for the initiation of clinical trials.

Clinical trials are typically conducted in
three sequential phases, although the phases may overlap.



| |  |  | Phase I, which frequently begins with the initial introduction of the compound into healthy human subjects prior to introduction into patients,
involves testing the product for safety, adverse effects, dosage, tolerance, absorption, metabolism, excretion and other elements of clinical pharmacology.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Phase II typically involves studies in a small sample of the intended patient population to assess the efficacy of the compound for a specific
indication, to determine dose tolerance and the optimal dose range as well as to gather additional information relating to safety and potential adverse effects.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Phase III trials are undertaken to further evaluate clinical safety and efficacy in an expanded patient population at typically dispersed study sites,
in order to determine the overall risk-benefit ratio of the compound and to provide an adequate basis for product labeling.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Each trial is conducted in accordance with certain standards under protocols that detail the objectives of the study, the parameters to be used to monitor safety, and efficacy criteria to be evaluated.
Each protocol must be submitted to the FDA as part of the IND. In some cases, the FDA allows a company to rely on data developed in foreign countries or previously published data, which eliminates the need to independently repeat some or all of the
studies.

Data from preclinical testing and clinical trials are submitted to the FDA in an NDA for marketing approval and to
other health authorities as a marketing authorization application. The process of completing clinical trials for a new drug may take several years and require the expenditures of substantial resources. Preparing an NDA or marketing authorization
application involves considerable data collection, verification, analysis and expense, and there can be no assurance that approval from the FDA or any other health authority will be granted on a timely basis, if at all. The approval process is
affected by a number of factors, primarily the risks and benefits demonstrated in clinical trials as well as the severity of the disease and the availability of alternative treatments. The FDA or other health authorities may deny an NDA or marketing
authorization application if the regulatory criteria are not satisfied, or such authorities may require additional testing or information.

As a condition of approval, the FDA or other regulatory authorities may require further studies, including Phase IV post-marketing studies to provide additional data. In September 2007, Congress passed
legislation authorizing FDA to require companies to undertake such studies to assess the risks of drugs known or signaling potential to have serious safety issues. Other post-marketing studies could be used to gain approval for the use of a product
as a treatment for clinical indications other than those for which the product was initially tested. Also, the FDA or other regulatory authorities require post-marketing reporting to monitor the adverse effects of the drug. Results of post-marketing
programs may limit or expand the further marketing of the products.



16



---

##### Table of Contents

On January 30, 2007, the FDA announced a drug safety initiative to implement a number
of proposals made by the Institute of Medicine in a September 2006 report. As part of this initiative, the FDA has created a Drug Safety Oversight Board to provide independent oversight and advice to the Center for Drug Evaluation and Research on
the management of important drug safety issues and to manage the dissemination of certain safety information through FDAs Web site to healthcare professionals and patients. As part of this program, the FDA has also begun publishing a
newsletter that contains non-confidential, non-proprietary information regarding post-marketing review of new drug products.

On February 6, 2009, the FDA sent letters to manufacturers of certain opioid drug products, indicating that these drugs will be required to have a REMS to address whether the benefits of these
products continue to outweigh the risks. The FDA has authority to require a REMS under the FDAAA when necessary to ensure that the benefits of a drug outweigh the risks. The affected opioid drugs include brand name and generic products. Two
products sold by Endo were included in the list of affected opioid drugs: Opana® ER and morphine sulfate ER. We
cannot determine what may be required by the FDA in connection with a REMS for these products, but intend to comply with any enacted requirements. Changes could, among other things, require different labeling, monitoring of patients or
physicians, education programs for patients or physicians, or curtailment of supplies or limitations on distribution. These changes, or others required by the FDA, could have an adverse effect on the sales, gross margins and marketing costs of
these products.

Finally, the FDA is developing guidance for the industry on how to test, detect and prevent safety problems
during drug development, including tests that would identify preclinical biomarkers of toxicity. Because these initiatives and other similar initiatives are still being implemented, it is unclear what impact, if any, they may have on our ability to
obtain approval of new drugs or on our sales of existing products.

In addition to these initiatives, the Prescription Drug
User Fee Act (referred to as PDUFA) was reauthorized on September 27, 2007 through passage of the FDAAA. In connection with that reauthorization legislation, Congress enacted new measures authorizing FDA to require companies to undertake
post-approval testing of products to assess known or signaled potential serious safety risks and to make labeling changes to address safety risks. The legislation also re-authorized FDA to require testing of drug products in children, and provided
additional incentives to companies that agree to undertake such testing in connection with a new NDA as part of the Best Pharmaceuticals for Children Act (referred to as the BPCA). The legislation also contained provisions to expedite new drug
development, and collect data and results from clinical trials of drug products more readily available via a registry managed by the National Institutes of Health. These provisions, depending on how they are implemented by FDA, could impact our
ability to market existing and new products.

Section 505(b)(2) of the Federal Food Drug and Cosmetic Act provides a
procedure for an applicant to seek approval of a drug for which safety and/or efficacy has been established through preclinical and clinical data that the applicant does not have proprietary rights to use. Under that section, despite not having a
right of reference, an applicant can cite to studies containing such clinical data to prove safety or efficacy, along with any additional clinical data necessary to support the application. Section 505(b)(2) NDAs are subject to patent
certification and notification requirements that are similar to those that are required for ANDAs (refer to next section). Approval of Section 505(b)(2) NDAs, like ANDAs, also may be delayed by market exclusivity that covers the reference
product. However, despite the similarities, Section 505(b)(2) applications are not permitted when an applicant could submit and obtain approval of an ANDA.

ANDA Process

FDA approval of an ANDA is required before a generic
equivalent of an existing or reference-listed drug can be marketed. The ANDA process is abbreviated in that the FDA waives the requirement of conducting complete preclinical and clinical studies and instead relies principally on bioequivalence
studies. Bioequivalence generally involves a comparison of the rate of absorption and levels of concentration of a generic drug in the body with those of the previously approved drug. When the rate and extent of absorption of



17



---

##### Table of Contents

systemically acting test and reference drugs are the same, the two drugs are bioequivalent and regarded as therapeutically equivalent, meaning that a pharmacist can substitute the product for the
reference-listed drug. There are other or additional measures the FDA may rely upon to determine bioequivalence in locally acting products, which could include comparative clinical efficacy trials. In May 2007, the FDA began posting to its website,
bioequivalence recommendations for individual products in order to provide guidance to generic manufacturers on the specific method of demonstrating bioequivalence.

An ANDA also may be submitted for a product authorized by approval of an ANDA suitability petition. Such petitions may be submitted to secure authorization to file an ANDA for a product that differs from
a previously approved drug in active ingredient, route of administration, dosage form or strength. For example, the FDA has authorized the substitution of acetaminophen for aspirin in certain combination drug products and switching the drug from a
capsule to tablet form. Bioequivalence data may be required, if applicable, as in the case of a tablet in place of a capsule, although the two products would not be rated as therapeutically equivalent, meaning that a pharmacist cannot automatically
substitute the product for the reference-listed drug. Congress re-authorized pediatric testing legislation in September 2007 which may continue to affect pharmaceutical firms ability to file ANDAs via the suitability petition route. In
addition, under that same legislation, ANDA applicants are required to implement a REMS in connection with obtaining approval of their products, when the reference-listed drug (RLD) has an approved REMS.

The timing of final FDA approval of ANDA applications depends on a variety of factors, including whether the applicant challenges any listed
patents for the drug and whether the manufacturer of the reference listed drug is entitled to one or more statutory exclusivity periods, during which the FDA is prohibited from approving generic products. In certain circumstances, a regulatory
exclusivity period can extend beyond the life of a patent, and thus block ANDAs from being approved on the patent expiration date. For example, under the Best Pharmaceuticals for Children Act, if a manufacturer seeks and receives a written request
from the FDA to conduct studies on the safety and efficacy of its product in children, the exclusivity of a product is extended by six months past the patent or regulatory expiration date if the manufacturer completes and submits the results of the
studies, a so-called pediatric extension.

The Generic Drug Enforcement Act of 1992, or Generic Act, allows the FDA to impose
debarment and other penalties on individuals and companies that commit certain illegal acts relating to the drug approval process. In some situations, the Generic Act requires the FDA to not accept or review applications for a period of time from a
company or an individual that has committed certain violations. It also provides for temporary denial of approval of applications during the investigation of certain violations that could lead to debarment and also, in more limited circumstances,
provides for the suspension of the marketing of approved drugs by the affected company. Lastly, the Generic Act allows for civil penalties and withdrawal of previously approved applications. We believe neither we nor any of our employees have ever
been subject to debarment.

Patent and Non-Patent Exclusivity Periods

A sponsor of an NDA is required to identify in its application any patent that claims the drug or a use of the drug subject to the
application. Upon NDA approval, the FDA lists these patents in a publication referred to as the Orange Book. Any person that files a Section 505(b)(2) NDA, the type of NDA that relies upon the data in the application for which the patents are
listed, or an ANDA to secure approval of a generic version of this first, or listed drug, must make a certification in respect to listed patents. The FDA may not approve such an application for the drug until expiration of the listed patents unless
(1) the generic applicant certifies that the listed patents are invalid, unenforceable or not infringed by the proposed generic drug and gives notice to the holder of the NDA for the listed drug of the bases upon which the patents are
challenged, and (2) the holder of the listed drug does not sue the later applicant for patent infringement within 45 days of receipt of notice. Under the current law, if an infringement suit is filed, the FDA may not approve the later
application until the earliest of: 30 months after submission; entry of an appellate court judgment holding the patent invalid, unenforceable or not infringed; such time as the court may order; or the patent expires.



18



---

##### Table of Contents

One of the key motivators for challenging patents is the 180-day market exclusivity period
vis a vis other generic applicants granted to the developer of a generic version of a product that is the first to have its application accepted for filing by the FDA and whose filing includes a certification that the applicable patent(s) are
invalid, unenforceable and/or not infringed (a Paragraph IV certification) and that prevails in litigation with the manufacturer of the branded product over the applicable patent(s). Under the Medicare Prescription Drug,
Improvement, and Modernization Act of 2003, or the 2003 Medicare Act, with accompanying amendments to the Hatch Waxman Act, this marketing exclusivity would begin to run upon the earlier of the commercial launch of the generic product or upon an
appellate court decision in the generic companys favor.

In addition, the holder of the NDA for the listed drug may be
entitled to certain non-patent exclusivity during which the FDA cannot approve an application for a competing generic product or 505(b)(2) NDA product. If the listed drug is a new chemical entity, in certain circumstances, the FDA may not
approve any application for five years; if it is not a new chemical entity, the FDA may not approve a competitive application for three years. Certain other periods of exclusivity may be available if the listed drug is indicated for use in a rare
disease or is studied for pediatric indications.

Quality Assurance Requirements

The FDA enforces regulations to ensure that the methods used in, and facilities and controls used for, the manufacture, processing, packing
and holding of drugs conform with current good manufacturing practices, or cGMP. The cGMP regulations the FDA enforces are comprehensive and cover all aspects of operations, from receipt of raw materials to finished product distribution, insofar as
they bear upon whether drugs meet all the identity, strength, quality and purity characteristics required of them. To assure compliance requires a continuous commitment of time, money and effort in all operational areas.

The FDA conducts pre-approval inspections of facilities engaged in the development, manufacture, processing, packing, testing and holding of
the drugs subject to NDAs and ANDAs. If the FDA concludes that the facilities to be used do not meet cGMP, good laboratory practices or GLP or good clinical practices or GCP requirements, it will not approve the application. Corrective actions to
remedy the deficiencies must be performed and verified in a subsequent inspection. In addition, manufacturers of both pharmaceutical products and active pharmaceutical ingredients, or APIs, used to formulate the drug also ordinarily undergo a
pre-approval inspection, although the inspection can be waived when the manufacturer has had a passing cGMP inspection in the immediate past. Failure of any facility to pass a pre-approval inspection will result in delayed approval and would have a
material adverse effect on our business, results of operations, financial condition and cash flows.

The FDA also conducts
periodic inspections of facilities to assess their cGMP status. If the FDA were to find serious cGMP non-compliance during such an inspection, it could take regulatory actions that could adversely affect our business, results of operations,
financial condition and cash flows. Imported API and other components needed to manufacture our products could be rejected by U.S. Customs. In respect to domestic establishments, the FDA could initiate product seizures or request product recalls and
seek to enjoin a products manufacture and distribution. In certain circumstances, violations could support civil penalties and criminal prosecutions. In addition, if the FDA concludes that a company is not in compliance with cGMP requirements,
sanctions may be imposed that include preventing that company from receiving the necessary licenses to export its products and classifying that company as an unacceptable supplier, thereby disqualifying that company from selling products
to federal agencies.

We believe that we and our suppliers and outside manufacturers are currently in compliance with cGMP
requirements.

Following a routine FDA inspection in September 2007 primarily in the area of drug safety, an FDA 483
Inspectional Observation Form was issued to us detailing two observations that were made by the inspector. The observations focused on procedures for handling product complaints and recordkeeping regarding adverse drug



19



---

##### Table of Contents

experiences for the required period of time. We provided to the FDA comprehensive remediation plans which address the issues outlined in the observations along with the timeline for completing
the corrective actions. Implementation of the remediation plans was completed in January 2009.

Other FDA Matters

If there are any modifications to an approved drug, including changes in indication, manufacturing process or labeling or a change in a
manufacturing facility, an applicant must notify FDA, and in many cases, approval for such changes must be submitted to the FDA or other regulatory authority. Additionally, the FDA regulates post-approval promotional labeling and advertising
activities to assure that such activities are being conducted in conformity with statutory and regulatory requirements. Failure to adhere to such requirements can result in regulatory actions that could have a material adverse effect on our
business, results of operations, financial condition and cash flows.

Drug Enforcement Administration

We sell products that are controlled substances as defined in the Controlled Substances Act, which establishes certain security
and record keeping requirements administered by the U.S. Drug Enforcement Administration (referred to as the DEA). The DEA is concerned with the control of registered handlers of controlled substances, and with the equipment and raw materials used
in their manufacture and packaging, in order to prevent loss and diversion into illicit channels of commerce.

The DEA
regulates controlled substances as Schedule I, II, III, IV or V substances, with Schedule I and II substances considered to present the highest risk of substance abuse and Schedule V substances the lowest risk. The active ingredients in some of our
current products and products in development, including oxycodone, oxymorphone, morphine, sufentanil, fentanyl and hydrocodone, are listed by the DEA as Schedule II or III substances under the Controlled Substances Act of 1970. Consequently, their
manufacture, shipment, storage, sale and use are subject to a high degree of regulation. For example, all Schedule II drug prescriptions must be signed by a physician, physically presented to a pharmacist and may not be refilled without a new
prescription.

The DEA limits the availability of the active ingredients used in many of our current products and products in
development, and we must annually apply to the DEA for procurement quota in order to obtain these substances. As a result, our procurement quota of these active ingredients may not be sufficient to meet commercial demand or complete clinical trials.
Any delay or refusal by the DEA in establishing our procurement quota for controlled substances could delay or stop our clinical trials, product launches or could cause trade inventory disruptions for those products that have already been launched,
which could have a material adverse effect on our business, financial position, results of operations and cash flows.

To meet
its responsibilities, the DEA conducts periodic inspections of registered establishments that handle controlled substances. Facilities that conduct research, manufacture or distribute controlled substances must be registered to perform these
activities and have the security, control and accounting mechanisms required by the DEA to prevent loss and diversion. Failure to maintain compliance, particularly as manifested in loss or diversion, can result in regulatory action that could have a
material adverse effect on our business, results of operations, financial condition and cash flows. The DEA may seek civil penalties, refuse to renew necessary registrations, or initiate proceedings to revoke those registrations. In certain
circumstances, violations could eventuate in criminal proceedings.

We and, to our knowledge, our third-party API suppliers,
dosage form manufacturers, distributors and researchers have necessary registrations, and we believe all registrants operate in conformity with applicable requirements.

Government Benefit Programs

Statutory and regulatory requirements
for Medicaid, Medicare, Tricare and other government healthcare programs govern provider reimbursement levels, including requiring that all pharmaceutical companies rebate to



20



---

##### Table of Contents

individual states a percentage of their net sales arising from Medicaid-reimbursed products. The federal and/or state governments may continue to enact measures in the future aimed at containing
or reducing payment levels for prescription pharmaceuticals paid for in whole or in part with government funds. We cannot predict the nature of such measures or their impact on our profitability and cash flows. These efforts could, however, have
material consequences for the pharmaceutical industry as a whole and consequently, also for the Company.

On December 8,
2003, President Bush signed into law the Medicare Prescription Drug Improvement and Modernization Act of 2003. This law, which was fully implemented in January 2006, created a new prescription drug coverage program for people with Medicare through a
new system of private market insurance providers. This benefit provides a prescription drug benefit to seniors and individuals with disabilities in the Medicare program (Medicare Part D). Congress continues to examine various Medicare policy
proposals that may decrease prices that can be charged by pharmaceutical manufacturers.

Currently, uncertainty exists
regarding the healthcare reform legislation currently being considered by Congress. While proposals currently being contemplated have the potential to increase the number of U.S. residents with access to health care services, they also have the
potential to impose new costs and decrease prices that can be charged by the pharmaceutical industry.

Service Agreements

We contract with various third parties to provide certain critical services including manufacturing, warehousing, distribution, customer
service, certain financial functions, certain research and development activities and medical affairs. Our most significant agreement is with UPS Supply Chain Solutions, Inc. For a complete description of these agreements, see Note 14 of the
Consolidated Financial Statements included in Part IV, Item 15 of this Annual Report on Form 10-K.

Manufacturing, Supply and Other
Service Agreements

We contract with various third party manufacturers and suppliers to provide us with raw materials used
in our products and finished goods. Our most significant agreements are with Novartis Consumer Health, Inc., Novartis AG, Teikoku Seiyaku Co., Ltd., Mallinckrodt Inc., Almac Pharma Services, and Sharp Corporation. In addition, through our agreement
with Ventiv Commercial Services, LLC, we maintain a contracted sales force consisting of 80 pharmaceutical representatives. If for any reason we are unable to obtain sufficient quantities of any of the finished goods or raw materials or components
required for our products, this may have a material adverse effect on our business, financial condition, results of operations and cash flows.

For a complete description of these agreements, see Note 14 of the Consolidated Financial Statements included in Part IV, Item 15 of this Annual Report on Form 10-K.

Acquisitions, License and Collaboration Agreements

We continue to seek to enhance our product line and develop a balanced portfolio of differentiated products through selective product acquisitions and in-licensing, or acquiring licenses to products,
compounds and technologies from third parties or through company acquisitions. The Company enters into strategic alliances and collaborative arrangements with third parties, which give the Company rights to develop, manufacture, market and/or sell
pharmaceutical products, the rights to which are primarily owned by these third parties. These alliances and arrangements can take many forms, including licensing arrangements, co-development and co-marketing agreements, co-promotion arrangements,
research collaborations and joint ventures. Such alliances and arrangements enable us to share the risk of incurring all research and development expenses that do not lead to revenue-generating products; however, because profits from alliance
products are shared with the counter-parties to the collaborative arrangement, the gross margins on alliance products are generally lower, sometimes substantially so, than the gross margins that could be achieved had the Company not opted for a
development partner. For a full discussion, including agreement terms and status, see our disclosures under Note 6.



21



---

##### Table of Contents

Acquisitions, License and Collaboration Agreements, included in the consolidated financial statements in Part IV, Item 15 of this Annual Report on Form 10-K.

Environmental Matters

Our
operations are subject to substantial and evolving federal, state and local environmental laws and regulations concerning, among other matters, the generation, handling, storage, transportation, treatment and disposal of toxic and hazardous
substances. We believe that our facilities and the facilities of our third party service providers are in substantial compliance with all provisions of federal, state and local laws concerning the environment and do not believe that future
compliance with these provisions will have a material adverse effect on our financial condition or results of operations.

Employees

As of February 19, 2010, we had 1,487 employees, of which 148 are engaged in research and development and regulatory
work, 965 in sales and marketing, 34 in quality assurance and 340 in general and administrative capacities. Our employees are not represented by unions, and we believe that our relations with our employees are good.

Executive Officers of the Registrant

Set forth below is information regarding each of our current executive officers, as of February 19, 2010:



|                    |  |     |  |                                                            
|------------------- |  | --- |  | -----------------------------------------------------------
|Name                |  | Age |  | Position and Offices                                       
|David P. Holveck    |  | 64  |  | President and Chief Executive Officer and Director         
|Alan G. Levin.      |  | 47  |  | Executive Vice President, Chief Financial Officer          
|Ivan Gergel, M.D.   |  | 49  |  | Executive Vice President, Research and Development         
|Caroline B. Manogue |  | 41  |  | Executive Vice President, Chief Legal Officer and Secretary
|Edward J. Sweeney   |  | 40  |  | Vice President, Controller and Principal Accounting Officer

DAVID P. HOLVECK, 64, was appointed President, Chief Executive Officer, and a Director of Endo in April 2008. Prior to joining Endo, Mr. Holveck was President of Johnson & Johnson
Development Corporation and Vice President, Corporate Development of Johnson & Johnson since 2004. Mr. Holveck joined Johnson & Johnson as a company Group Chairman in 1999, following the acquisition of Centocor, Inc., by
Johnson & Johnson. Mr. Holveck was Chief Executive Officer of Centocor, Inc., at the time of the acquisition. Mr. Holveck joined Centocor in 1983 and progressed through various executive positions. In 1992, he assumed the role of
President and Chief Operating Officer and later that year was named President and Chief Executive Officer. Prior to joining Centocor, he held positions at General Electric Company, Corning Glass Works, and Abbott Laboratories. Mr. Holveck is a
member of the Board of Trustees for the Fund for West Chester University, the Board of Directors of the Eastern Technology Council, the Board of Directors of Light Sciences Oncology, Inc. and the Board of Directors of the Pharmaceutical Research and
Manufacturers of America (PhRMA).

ALAN G. LEVIN, 47, was appointed Executive Vice President and Chief Financial Officer, on
May 5, 2009. Prior to joining Endo, Mr. Levin worked with Texas Pacific Group, a leading private equity firm, and one of its start-up investments in emerging markets. Before that, he was Senior Vice President & Chief Financial
Officer of Pfizer, Inc. where he worked for 20 years in a variety of executive positions of increasing responsibility, including Treasurer and Senior Vice President of Finance & Strategic Management for the companys research and
development organization. He received a bachelors degree from Princeton University and a masters degree from New York Universitys Stern School of Business. Mr. Levin is a certified public accountant and an Editorial Advisor
for the Journal of Accountancy.

IVAN GERGEL, M.D., 49, was appointed Executive Vice President, Research &
Development in April 2008. In this role, he has full responsibility for all of the Companys R&D activities, including direct supervision of clinical research, pre-clinical R&D, medical affairs, marketed product development support,
regulatory affairs, project management and drug safety and surveillance. Prior to joining Endo, Dr. Gergel was Senior Vice



22



---

##### Table of Contents

President of Scientific Affairs and President of the Forest Research Institute of Forest Laboratories Inc., managing more than 900 physicians, scientists and staff at the Research Institute.
Prior to that, Dr. Gergel served as Vice President and Chief Medical Officer at Forest and Executive Vice President of the Forest Research Institute. He joined Forest in 1998 as Executive Director of Clinical Research following nine years at
SmithKline Beecham, and was named Vice President of Clinical Development and Clinical Affairs in 1999. Dr. Gergel received his M.D. from the Royal Free Medical School of the University of London and an MBA from the Wharton School.
Dr. Gergel is a member of the Board of Directors of Pennsylvania BIO and a member of PhRMAs Research and Development Executive Committee.

CAROLINE B. MANOGUE, 41, has served as Executive Vice President, Chief Legal Officer and Secretary since 2004 and was previously Endos Senior Vice President, General Counsel and Secretary. Prior to
joining Endo in 2000, she was an associate at the law firm Skadden, Arps, Slate, Meagher & Flom LLP in New York City. She has more than 14 years experience in securities and M&A law. Ms. Manogue received her J.D. from Fordham
Law School and her B.A. cum laude from Middlebury College. Ms. Manogue is a member of PhRMAs Law Section Executive Committee and the Board of Trustees of the Healthcare Institute of New Jersey.

EDWARD J. SWEENEY, 40, is the Companys Vice President, Controller and Principal Accounting Officer. Mr. Sweeney has been Vice
President, Controller since June 2007 after having joined the Company in March 2004 as Director, Financial Reporting. Prior to joining Endo, Mr. Sweeney was a Senior Manager at Ernst & Young LLP, where he worked from September 1991
through March 2004. Mr. Sweeney is a licensed certified public accountant in the Commonwealth of Pennsylvania and holds a BS degree in Accounting from St. Josephs University.

We have employment agreements with each of our executive officers, except Mr. Sweeney.

Available Information

Our
internet address is http://www.endo.com. The contents of our website are not part of this Annual Report on Form 10-K, and our internet address is included in this document as an inactive textual reference only. We make our Annual Reports on Form
10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and all amendments to those reports available free of charge on our website as soon as reasonably practicable after we file such reports with, or furnish such reports to, the
Securities and Exchange Commission.

You may also read and copy any materials we file with the SEC at the SECs Public
Reference Room that is located at 100 F Street, N.E., Room 1580, NW, Washington, DC 20549. Information about the operation of the Public Reference Room can be obtained by calling the SEC at 1-800-SEC-0330 or 1-202-551-8090. You can also access our
filings through the SECs internet site: www.sec.gov (intended to be an inactive textual reference only).



|Item 1A. | Risk Factors
|-------- | ------------

Risks Related to Our Business

We face intense competition, in particular from
companies that develop rival products to our branded products and from companies with which we compete to acquire rights to intellectual property assets.

The pharmaceutical industry is intensely competitive, and we face competition across the full range of our activities. If we fail to compete successfully in any of these areas, our business, results of
operations, financial condition and cash flows could be adversely affected. Our competitors include many of the major brand name and generic manufacturers of pharmaceuticals, especially those doing business in the United States. In the market for
branded pharmaceutical products, our competitors, including Abbott Laboratories, Johnson & Johnson, King Pharmaceuticals Inc., Cephalon, Inc., Pfizer, Inc., Purdue Pharma, L.P., Allergan, Inc., and Watson Pharmaceuticals Inc., vary
depending on product category, dosage strength and drug-delivery systems. In addition to product safety, development and efficacy, other competitive factors in the branded pharmaceutical market include product quality



23



---

##### Table of Contents

and price, reputation, service and access to scientific and technical information. It is possible that developments by our competitors will make our products or technologies uncompetitive or
obsolete. Because we are smaller than many of our national competitors in the branded pharmaceutical products sector, we may lack the financial and other resources needed to maintain our profit margins and market share in this sector.

The intensely competitive environment of the branded products business requires an ongoing, extensive search for medical and technological
innovations and the ability to market products effectively, including the ability to communicate the effectiveness, safety and value of branded products for their intended uses to healthcare professionals in private practice, group practices and
managed care organizations. There can be no assurance that we will be able to successfully develop medical or technological innovations or that we will be able to effectively market existing products or new products we develop.

Our branded products face competition from generic versions. Generic versions are generally significantly cheaper than
the branded version, and, where available, may be required or encouraged in preference to the branded version under third party reimbursement programs, or substituted by pharmacies for branded versions by law. The entrance of generic competition to
our branded products generally reduces our market share and adversely affects our profitability and cash flows. Generic competition with our branded products, including Percocet®, has had and will continue to have a material adverse effect on the net sales and profitability of our branded products.

Additionally, we compete to acquire the intellectual property assets that we require to continue to develop and broaden our product range.
In addition to our in-house research and development efforts, we seek to acquire rights to new intellectual property through corporate acquisitions, asset acquisitions, licensing and joint venture arrangements. Competitors with greater resources may
acquire assets that we seek, and even where we are successful, competition may increase the acquisition price of such assets or prevent us from capitalizing on such acquisitions or licensing opportunities. If we fail to compete successfully, our
growth may be limited.

If generic manufacturers use litigation and regulatory means to obtain approval for generic versions of our branded
drugs, our sales may suffer.

Under the Federal Food, Drug and Cosmetics Act (referred to as FDCA Act), the FDA can approve
an ANDA, for a generic version of a branded drug and what is referred to as a Section 505(b)(2) NDA, for a branded variation of an existing branded drug, without undertaking the clinical testing necessary to obtain approval to market a new
drug. We refer to this process as the ANDA process. In place of such clinical studies, an ANDA applicant usually needs only to submit data demonstrating that its product has the same active ingredient(s) and is bioequivalent to the
branded product, in addition to any data necessary to establish that any difference in strength, dosage form, inactive ingredients, or delivery mechanism does not result in different safety or efficacy profiles, as compared to the reference drug.

The FDCA Act requires an applicant for a drug that relies, at least in part, on the patent of one of our branded drugs to
notify us of their application and potential infringement of our patent rights. Upon receipt of this notice we have 45 days to bring a patent infringement suit in federal district court against the company seeking approval of a product covered by
one of our patents. The discovery, trial and appeals process in such suits can take several years. If such a suit is commenced, the FDCA Act provides a 30-month stay on the FDAs approval of the competitors application. Such litigation is
often time-consuming and quite costly and may result in generic competition if such patent(s) are not upheld or if the generic competitor is found not to infringe such patent(s). If the litigation is resolved in favor of the applicant or the
challenged patent expires during the 30-month stay period, the stay is lifted and the FDA may thereafter approve the application based on the standards for approval of ANDAs and Section 505(b)(2) NDAs.

In December 2006, the Division of Bioequivalence, Office of Generic Drugs, Center for Drug Evaluation and Research
(referred to as OGD), issued draft guidance making recommendations regarding establishing bioequivalence with our patent-protected product, Lidoderm® (lidocaine topical patch 5%), pursuant to which a



24



---

##### Table of Contents

party could seek ANDA approval of a generic version of that product. In that draft guidance, OGD has recommended a bioequivalence study characterizing the pharmacokinetic profile of lidocaine as
well as a skin irritation/sensitization study of any lidocaine-containing patch formulation. This recommendation deviates from our understanding of the applicable regulations and of OGDs past practices, which, for a topically acting product
such as Lidoderm®, would require demonstration of bioequivalence through a comparative clinical equivalency
study rather than through a pharmacokinetic study.

On December 19, 2006, we submitted a Citizen
Petition to the FDA requesting that the FDA apply existing bioequivalence regulations to any ANDA seeking regulatory approval of a generic drug product that references Lidoderm®. We submitted an amendment to that filing in August 2007 in order to provide additional data. Our Citizen Petition emphasizes that the FDAs recommendation
deviates from applicable regulations and OGDs past practices, both of which contemplate demonstration of bioequivalence for a topically acting product like Lidoderm® through a comparative clinical efficacy study. We believe blood levels of the active ingredient, lidocaine, cannot properly be used as the key measure in proving
bioequivalence. To appropriately assess the efficacy and safety of any generic version of Lidoderm®, we believe
that it is critical that the FDA require any ANDA applicant relying on Lidoderm® as its reference listed drug
satisfy the regulations by conducting comparative clinical studies demonstrating (1) bioequivalence between the generic version and Lidoderm®, and (2) that the generic version produces the same local analgesic effect as Lidoderm® without producing a complete sensory block, in order to assure that the generic product has the same labeling, efficacy and safety profile as Lidoderm®. The FDA has not acted on our Citizen Petition, and it is unclear whether or not the FDA will agree with our
position. In addition to this Petition, on September 28, 2007, we filed comments with the FDA regarding the draft guidance; those comments reiterated our position as set forth in the Citizen Petition, referencing the Citizen Petition and
supporting data. The draft guidance remains available and has not been updated or revised since being issued.

On January 15, 2010, the Company and the holders of the Lidoderm® NDA and relevant patent, Teikoku
Seiyaku Co., Ltd. and Teikoku Pharma USA, Inc., received a Paragraph IV certification notice under 21 U.S.C. 355(j) from Watson Laboratories, Inc. advising of the filing of an ANDA for a generic version of Lidoderm®. For a complete description of the related legal proceeding see Note 14 of the Consolidated Financial Statements
included in Part IV, Item 15 of this Annual Report on Form 10-K.

The Company is aware of various ANDA filings containing
Paragraph IV certifications under 21 U.S.C. Section 355(j) with respect to oxymorphone hydrochloride extended-release tablets. For a complete description of these and other legal proceedings see Note 14 of the Consolidated Financial Statements
included in Part IV, Item 15 of this Annual Report on Form 10-K.

The filing of the aforementioned
applications, or any other ANDA or Section 505(b)(2) NDA in respect to any of our branded drugs could have an adverse impact on our stock price. Moreover, if the patents covering our branded drugs, including Lidoderm® or Opana® ER, were not upheld in litigation or if a generic competitor is found not to infringe these patents, the resulting generic competition would have a material adverse
effect on our business, results of operations, financial condition and cash flows.

Patent litigation which is often time-consuming and
expensive could have a material adverse effect on our business, results of operations, financial condition and cash flows.

The expense of patent litigation, whether or not we are successful, could have an adverse effect on our business, results of operations, financial condition and cash flows. Regardless of FDA approval, should we commence a lawsuit against a
third party for patent infringement or should there be a lawsuit commenced against us with respect to any alleged patent infringement by us, in either case, whether because of the filing of an ANDA or otherwise, the uncertainties inherent in patent
litigation make the outcome of such litigation difficult to predict. The cost of such litigation as well as the ultimate outcome of such litigation, if commenced, could have a material adverse effect on our business, results of operations, financial
condition and cash flows.



25



---

##### Table of Contents

Most of our total revenues come from a small number of products.

The following table displays our revenues by product category and as a percentage of total revenues for the years ended December 31
(dollars in thousands):



|                                 |  |           |  |      |  |           |  |     |  |           |  |    
|-------------------------------- |  | --------- |  | ---- |  | --------- |  | --- |  | --------- |  | ---
|                                 |  | 2009      |  | 2008 |  | 2007     
|                                 |  | $         |  | %    |  | $         |  | %   |  | $         |  | %  
|Lidoderm®                        |  | 763,698   |  | 52   |  | 765,097   |  | 61  |  | 705,587   |  | 65 
|Opana® ER and Opana®             |  | 230,631   |  | 16   |  | 180,429   |  | 14  |  | 107,143   |  | 10 
|Percocet®                        |  | 127,090   |  | 9    |  | 129,966   |  | 10  |  | 121,742   |  | 11 
|Voltaren® Gel                    |  | 78,868    |  | 5    |  | 23,791    |  | 2   |  |          |  |   
|Frova®                           |  | 57,924    |  | 4    |  | 58,017    |  | 5   |  | 52,437    |  | 5  
|Other brands                     |  | 68,635    |  | 5    |  | 10,904    |  | 1   |  | 11,065    |  | 1  
|                                 |  |           |  |      |  |           |  |     |  |           |  |    
|Total brands                     |  | 1,326,846 |  | 91   |  | 1,168,204 |  | 93  |  | 997,974   |  | 92 
|Total generics                   |  | 124,731   |  | 9    |  | 92,332    |  | 7   |  | 87,634    |  | 8  
|Total royalty and other revenues |  | 9,264     |  | *    |  |          |  |    |  |          |  |   
|                                 |  |           |  |      |  |           |  |     |  |           |  |    
|Total revenues                   |  | 1,460,841 |  | 100  |  | 1,260,536 |  | 100 |  | 1,085,608 |  | 100
|                                 |  |           |  |      |  |           |  |     |  |           |  |    



|* |  Amount less than 1%.
|- | ----------------------

If
we are unable to continue to market any of our products, if any of them were to lose market share, for example, as the result of the entry of new competitors, particularly from generic versions of branded drugs, or if the prices of any of these
products were to decline significantly, our total revenues, profitability and cash flows would be materially adversely affected.

Our
ability to protect our proprietary technology, which is vital to our business, is uncertain.

Our success, competitive
position and amount of future income will depend in part on our ability to obtain patent protection relating to the technologies, processes and products we are currently developing and that we may develop in the future. Our policy is to seek patent
protection and enforce the intellectual property rights we own and license. We cannot assure you that patent applications we submit and have submitted will result in patents being issued. If an advance is made that qualifies as a joint invention,
the joint inventor or his or her employer may have rights in the invention. We cannot assure you that a third party will not infringe upon, design around or develop uses not covered by any patent issued or licensed to us or that these patents will
otherwise be commercially viable. In this regard, the patent position of pharmaceutical compounds and compositions is particularly uncertain. Even issued patents may later be modified or revoked by the U.S. Patent and Trademark Office, or PTO, or in
legal proceedings. Moreover, we believe that obtaining foreign patents may be more difficult than obtaining domestic patents because of differences in patent laws and, accordingly, our patent position may be stronger in the United States than
abroad. Foreign patents may be more difficult to protect and/or the remedies available may be less extensive than in the United States. Various countries limit the subject matter that can be patented and limit the ability of a patent owner to
enforce patents in the medical field. This may limit our ability to obtain or utilize those patents internationally. Because unissued U.S. patent applications are maintained in secrecy for a period of eighteen months and U.S. patent applications
filed prior to November 29, 2000 are not disclosed until such patents are issued, and since publication of discoveries in the scientific or patent literature often lags behind actual discoveries, we cannot be certain that we were the first
creator of the inventions covered by pending patent applications or the first to file patent applications on those inventions. Several drug companies and research and academic institutions have developed technologies, filed patent applications or
received patents for technologies that may be related to our business. Others may file patent applications and may receive patents that may conflict with patents or patent applications we have obtained or licensed for our use, either by claiming the
same methods or compounds or by claiming methods or compounds that could dominate those owned by or licensed to us. We cannot assure you that any of our pending patent applications will be allowed, or, if allowed, whether the scope of the claims
allowed will be sufficient to protect



26



---

##### Table of Contents

our products. Litigation to establish the validity of patents, to defend against patent infringement claims of others and to assert patent infringement claims against others can be expensive and
time-consuming even if the outcome is favorable to us. If the outcome is unfavorable to us, this could have a material adverse effect on our business. We have taken and may, in the future, take steps to enhance our patent protection, but we cannot
assure you that these steps will be successful or that, if unsuccessful, our patent protection will be adequate.

We also rely
upon trade secrets, know-how, continuing technological innovations and licensing opportunities to develop and maintain our competitive position. We attempt to protect our proprietary technology in large part by confidentiality agreements with our
employees, consultants and other contractors. We cannot assure you, however, that these agreements will not be breached, that we would have adequate remedies for any breach or that competitors will not know of, or independently discover, our trade
secrets. We cannot assure you that others will not independently develop substantially equivalent proprietary information or be issued patents that may prevent the sale of our products or know-how or require licensing and the payment of significant
fees or royalties by us in order to produce our products. Moreover, we cannot assure you that our technology does not infringe upon any valid claims of patents that other parties own.

In the future, if we were found to be infringing on a patent, we might have to seek a license to use the patented technology. We cannot
assure you that, if required, we would be able to obtain such a license on terms acceptable to us, if at all. If a third party brought a legal action against us or our licensors, we could incur substantial costs in defending ourselves, and we cannot
assure you that such an action would be resolved in our favor. If such a dispute were to be resolved against us, we could be subject to significant damages, and the testing, manufacture or sale of one or more of our technologies or proposed
products, if developed, could be enjoined.

We cannot assure you as to the degree of protection any patents will afford,
whether the PTO will issue patents or whether we will be able to avoid violating or infringing upon patents issued to others or that others will not manufacture and distribute our patented products upon expiration of the applicable patents. Despite
the use of confidentiality agreements and non-compete agreements, which themselves may be of limited effectiveness, it may be difficult for us to protect our trade secrets.

We may incur significant liability if it is determined that we are promoting or have in the past promoted the off-label use of drugs.

Companies may not promote drugs for off-label uses  that is, uses that are not described in the products labeling and
that differ from those approved by the FDA. Physicians may prescribe drug products for off-label uses, and such off-label uses are common across some medical specialties. Although the FDA and other regulatory agencies do not regulate a
physicians choice of treatments, the Federal Food, Drug and Cosmetics Act and FDA regulations restrict communications on the subject of off-label uses of drug products by pharmaceutical companies. The Office of Inspector General of the
Department of Health and Human Services (referred to as OIG), the FDA, and the Department of Justice (referred to as DOJ) all actively enforce laws and regulations prohibiting promotion of off-label uses and the promotion of products for which
marketing clearance has not been obtained. A company that is found to have improperly promoted off-label uses may be subject to significant liability, including civil and administrative remedies as well as criminal sanctions.

Notwithstanding the regulatory restrictions on off-label promotion, the OIG, the FDA, and DOJ allow companies to engage in truthful,
non-misleading, and non-promotional speech concerning their products. The Company has endeavored to establish extensive compliance programs in order to instruct employees as to how to comply with the relevant legal requirements. Nonetheless, the OIG
or the FDA may take the position that the Company is not in compliance with such requirements, and, if such non-compliance is proven, we may be subject to significant liability, including civil and administrative remedies, as well as criminal
sanctions. In addition, managements attention could be diverted from our business operations and our reputation could be damaged.



27



---

##### Table of Contents

In January 2007, we received a subpoena issued by the OIG. The subpoena
requests documents relating to Lidoderm® (lidocaine patch 5%) that are focused primarily on the sale, marketing
and promotion of Lidoderm®. We are cooperating with the government. At this time, we cannot predict or determine
the outcome of the above matter or reasonably estimate the amount or range of amounts of fines or penalties that might result from a settlement or an adverse outcome. However, should the government choose to initiate action against us, we could face
substantial penalties, which could have a material adverse effect on our business, financial condition, results of operations and cash flows.

We may incur liability if our continuing medical or health education programs and/or product promotions are determined, or are perceived, to be inconsistent with regulatory guidelines.

The FDA provides guidelines with respect to appropriate promotion and continuing medical and health education activities. Although we
endeavor to follow these guidelines, should it be determined that we have not appropriately followed these guidelines, the government may initiate an action against us which may result in significant liability, including civil and administrative
remedies as well as criminal sanctions. Such penalties could have a material adverse effect on our business, financial condition, results of operations and cash flows. In addition, managements attention could be diverted and our reputation
could be damaged.

We are subject to various regulations pertaining to the marketing of our products.

We are subject to various federal and state laws pertaining to healthcare fraud and abuse, including prohibitions on the offer of payment or
acceptance of kickbacks or other remuneration for the purchase of our products. Specifically, these anti-kickback laws make it illegal for a prescription drug manufacturer to solicit, offer, or pay any remuneration in exchange for purchasing,
leasing or ordering any service or items including the purchase or prescription of a particular drug for which payment may be made under a federal healthcare program. Because of the sweeping language of the federal anti-kickback statute, many
potentially beneficial business arrangements would be prohibited if the statute were strictly applied. To avoid this outcome, the U.S. Department of Health and Human Services has published regulations  known as safe harbors 
that identify exceptions or exemptions to the statutes prohibitions. Arrangements that do not fit within the safe harbors are not automatically deemed to be illegal, but must be evaluated on a case-by-case basis for compliance with the
statute. We seek to comply with anti-kickback statutes and to fit within one of the defined safe harbors; we are unaware of any violations of these laws. However, due to the breadth of the statutory provisions and the absence of uniform
guidance in the form of regulations or court decisions, there can be no assurance that our practices will not be challenged under anti-kickback or similar laws. Violations of such restrictions may be punishable by civil and/or criminal sanctions,
including fines and civil monetary penalties, as well as the possibility of exclusion from U.S. federal healthcare programs (including Medicaid and Medicare). Any such violations could have a material adverse effect on our business, financial
condition, results of operations and cash flows.

In addition, the FDA has the authority to regulate the claims we make in
marketing our prescription drug products to ensure that such claims are true, not misleading, supported by scientific evidence and consistent with the labeled use of the drug. Failure to comply with FDA requirements in this regard could result in,
among other things, suspensions of approvals, seizures or recalls of products, injunctions against a products manufacture, distribution, sales and marketing, operating restrictions, civil penalties and criminal prosecutions.

Many of our core products contain narcotic ingredients. As a result of reports of misuse or abuse of prescription narcotics, the sale of such drugs may
be subject to new regulation, including the development and implementation of REMS, which may prove difficult or expensive to comply with, and we and other pharmaceutical companies may face lawsuits.

Many of our core products contain narcotic ingredients. Misuse or abuse of such drugs can lead to physical or other harm.
For example, in the past, reportedly widespread misuse or abuse of OxyContin®, a product of Purdue Pharma L.P.,
or Purdue, containing the narcotic oxycodone, resulted in the strengthening of warnings on its labeling. In addition, we believe that Purdue, the manufacturer of OxyContin®, faces or did face numerous



28



---

##### Table of Contents

lawsuits, including class action lawsuits, related to OxyContin® misuse or abuse. On June 7, 2005, we began commercial sale of our oxycodone extended-release tablets, 10mg, 20mg, 40mg and 80mg strengths, each bioequivalent versions of OxyContin®. Pursuant to a settlement agreement with Purdue, all sales of our oxycodone extended-release tablets ceased as of December 31, 2006. However, we may be subject
to litigation similar to the OxyContin® suits related to any narcotic-containing product that we market.

The FDA or the DEA may impose new regulations concerning the manufacture, storage, transportation and sale of prescription
narcotics. Such regulations may include new labeling requirements, the development and implementation of formal REMS, restrictions on prescription and sale of these products and mandatory reformulation of our products in order to make abuse more
difficult. On September 27, 2007, Congress passed legislation authorizing the FDA to require companies to undertake post-approval studies in order to assess known or signaled potential serious safety risks and to make any labeling changes
necessary to address safety risks. Congress also empowered the FDA to require companies to formulate REMS to ensure a drugs benefits outweigh its risks. In addition, state health departments and boards of pharmacy have authority to regulate
distribution and may modify their regulations with respect to prescription narcotics in an attempt to curb abuse. In either case, any such new regulations or requirements may be difficult and expensive for us to comply with, may delay our
introduction of new products, may adversely affect our total revenues and may have a material adverse effect on our business, results of operations, financial condition and cash flows.

The pharmaceutical industry is heavily regulated, which creates uncertainty about our ability to bring new products to market and imposes substantial compliance costs on our business.

Federal, state and local governmental authorities in the United States, principally the FDA, impose substantial requirements on the
development, manufacture, labeling, sale, distribution, marketing, advertising, promotion and introduction of therapeutic pharmaceutical products through lengthy and detailed laboratory and clinical testing and other costly and time-consuming
procedures. The submission of an NDA or ANDA to the FDA alone does not guarantee that the FDA will grant approval to market the product. Satisfaction of FDA requirements typically takes a number of years, varies substantially based upon the type,
complexity and novelty of the pharmaceutical product and is subject to uncertainty. The NDA approval process for a new product varies in time, generally requiring a minimum of 10 months, but could also take several years from the date of
application. The timing for the ANDA approval process for generic products is difficult to estimate and can vary significantly.

NDA approvals, if granted, may not include all uses for which a company may seek to market a product. The FDA actively enforces regulations prohibiting marketing of products for unapproved uses. The FDA also requires companies to undertake
post-approval surveillance regarding their drug products and to report any adverse events. Failure to comply with applicable regulatory requirements in this regard can result in, among other things, suspensions or withdrawals of approvals, seizures
or recalls of products, injunctions against a products manufacture, distribution, sales and marketing, operating restrictions, civil penalties and criminal prosecutions. Furthermore, changes in existing regulations or the adoption of new
regulations could prevent us from obtaining, or affect the timing of, future regulatory approvals. The effect of government regulation may be to delay marketing of our new products for a considerable period of time, to impose costly procedures upon
our activities and to furnish a competitive advantage to larger companies that compete against us.

We cannot assure you that
the FDA or other regulatory agencies will approve any products developed by us, on a timely basis, if at all, or, if granted, that approval will not entail limiting the indicated uses for which we may market the product, which could limit the
potential market for any of these products.

The current FDA standards of approving new pharmaceutical products are more
stringent than those that were applied in the past. These standards were not applied to many established products currently on the market, including certain opioid products. As a result, the FDA does not have as extensive safety databases on these
products as on some products developed more recently. Accordingly, we believe the FDA has recently expressed an intention to develop such databases for certain of these products, including many opioids.



29



---

##### Table of Contents

In particular, the FDA has expressed interest in specific chemical structures that may be
present as impurities in a number of opioid narcotic active pharmaceutical ingredients, such as oxycodone, which based on certain structural characteristics and laboratory tests may indicate the potential for having mutagenic effects.

More stringent controls of the levels of these impurities have been required and may continue to be required for FDA approval of products
containing these impurities. Also, labeling revisions, formulation or manufacturing changes and/or product modifications may be necessary for new or existing products containing such impurities. The FDAs more stringent requirements together
with any additional testing or remedial measures that may be necessary could result in increased costs for, or delays in, obtaining approval for certain of our products in development. Although we do not believe that the FDA would seek to remove a
currently marketed product from the market unless such mutagenic effects are believed to indicate a significant risk to patient health, we cannot make any such assurance.

In addition, on September 27, 2007, through passage of the Food and Drug Administration Amendments Act of 2007, Congress enacted legislation authorizing the FDA to require companies to undertake
post-approval studies in order to assess known or signaled potential serious safety risks and to make any labeling changes necessary to address safety risks. Congress also empowered the FDA to require companies to formulate REMS to ensure a
drugs benefits outweigh its risks.

The FDA and the DEA have important and complementary responsibilities with respect
to our business. The FDA administers an application and post-approval monitoring process to assure that marketed products are safe, effective and consistently of uniform, high quality. The DEA administers registration, drug allotment and
accountability systems to assure against loss and diversion of controlled substances. Both agencies have trained investigators that routinely, or for cause, conduct inspections, and both have authority to enforce their statutory authority and
regulations using administrative remedies as well as civil and criminal sanctions.

The FDA regulates the facilities and
procedures used to manufacture pharmaceutical products in the United States or for sale in the United States. Such facilities must be registered with the FDA and all products made in such facilities must be manufactured in accordance with
current good manufacturing practices, or cGMP, regulations enforced by the FDA. Compliance with cGMP regulations requires the dedication of substantial resources and requires significant expenditures. The FDA periodically inspects our
third party manufacturing facilities and procedures to assure compliance. The FDA may cause a recall or withdrawal of product approvals if regulatory standards are not maintained. The FDA approval to manufacture a drug is site-specific. In the event
an approved manufacturing facility for a particular drug is required by the FDA to cease or curtail operations, or otherwise becomes inoperable, or the manufacturing contract applicable thereto terminates, obtaining the required FDA approval to
manufacture such drug at a different manufacturing site could result in production delays, which could adversely affect our business, results of operations, financial condition and cash flow.

The stringent DEA regulations on our use of controlled substances include restrictions on their use in research, manufacture, distribution
and storage. A breach of these regulations could result in imposition of civil penalties, refusal to renew or action to revoke necessary registrations, or other restrictions on operations involving controlled substances. See also The DEA
limits the availability of the active ingredients used in many of our current products and products in development and, as a result, our procurement quota may not be sufficient to meet commercial demand or complete clinical trials.

We cannot determine what effect changes in regulations or legal interpretations, when and if promulgated, may have on our business in the
future. Changes could, among other things, require different labeling, monitoring of patients or physicians, education programs for patients or physicians, or curtailment of supplies or limitations on distribution. These changes, or others
required by the FDA could have an adverse effect on the sales of these products. On February 6, 2009, the FDA sent letters to manufacturers of certain opioid drug products, indicating that these drugs will be required to have a REMS to ensure
that the benefits of the drugs continue to outweigh the risks. The FDA has authority to require a REMS under the FDAAA when necessary to address whether the benefits of these products continue to outweigh the risks. On September 27, 2007,
Congress



30



---

##### Table of Contents

enacted new requirements for testing drug products in children, which may increase the time and cost necessary for new drug development. In addition, in December 2003, Congress passed
measures intended to speed the process by which generic versions of brand name drugs are introduced to the market. Among other things, these measures are intended to limit regulatory delays of generic drug applications and penalize companies that
reach certain types of agreements with makers of brand name drugs to delay the introduction of generic versions. These changes could result in increased generic competition for our branded and generic products and could have a material adverse
effect on our business, financial condition, results of operations and cash flows. See If generic manufacturers use litigation and regulatory means to obtain approval for generic versions of our branded drugs, our sales may suffer.
The evolving and complex nature of regulatory requirements, the broad authority and discretion of the FDA and the generally high level of regulatory oversight results in a continuing possibility that from time to time, we will be adversely affected
by regulatory actions despite ongoing efforts and commitment to achieve and maintain full compliance with all regulatory requirements.

Implementation by the FDA of certain specific public advisory committee recommendations regarding acetaminophen use in both over-the-counter and prescription products could have an adverse material
impact on our net sales of Percocet® and Endocet®.

The FDA held a
public advisory committee meeting in June 2009 to discuss acetaminophen use in both over-the-counter and prescription products, the potential for liver injury, and potential interventions to reduce the incidence of liver injury. The
panels recommendations included the banning of certain prescription painkillers which combine acetaminophen with an opiate narcotic, and lowering the maximum dose of over-the-counter painkillers containing acetaminophen. These recommendations
were made following the release in May 2009 of a FDA report that found severe liver damage, and even death, can result from a lack of consumer awareness that acetaminophen can cause such injury. These recommendations are advisory in nature and the
FDA is not bound to follow these recommendations. At this time, the FDA has not made any decisions regarding acetaminophen-containing products, but has stated that it is reviewing the recommendations of the advisory committee, all available safety
and efficacy data as well as public input before making a final decision. Therefore it is unclear what actions the FDA may take in response to the panels recommendations. Implementation by the FDA of certain specific panel recommendations
could result in (1) a black box warning on the labels of prescription acetaminophen combination products or (2) the removal of several products from the marketplace including certain, or even all, strengths of Percocet® and Endocet®. The recommendation does not change the safety and efficacy of Percocet® and Endocet®, which remain
FDA approved. Endo remains committed to working with the FDA so that these products are prescribed in the best interest of patients, and we will continue to closely monitor this issue. Any action taken by the FDA to implement certain of the
recommendations of the panel, or take other measures to address concerns raised by the panel, could have a material adverse effect on our business, financial condition, results of operations and cash flows.

Timing and results of clinical trials to demonstrate the safety and efficacy of products as well as the FDAs approval of products are uncertain.

Before obtaining regulatory approvals for the sale of any of our products, other than generic products, we must
demonstrate through preclinical studies and clinical trials that the product is safe and effective for each intended use. Preclinical and clinical studies may fail to demonstrate the safety and effectiveness of a product. Even promising results from
preclinical and early clinical studies do not always accurately predict results in later, large scale trials. A failure to demonstrate safety and efficacy would result in our failure to obtain regulatory approvals.

The rate of patient enrollment sometimes delays completion of clinical studies. There is substantial competition to enroll patients in
clinical trials and such competition has delayed clinical development of our products in the past. Delays in planned patient enrollment can result in increased development costs and delays in regulatory approval. In addition, we rely on
collaboration partners that may control or make changes in trial protocol and design enhancements that may also delay clinical trials. We cannot assure you that we will not experience delays or undesired results in these or any other of our clinical
trials.



31



---

##### Table of Contents

We cannot assure you that the FDA or other regulatory agencies will approve any products
developed by us, on a timely basis, if at all, or, if granted, that such approval will not subject the marketing of our products to certain limits on indicated use. Any limitation on use imposed by the FDA or delay in or failure to obtain FDA
approvals of products developed by us would adversely affect the marketing of these products and our ability to generate product revenue, as well as adversely affect the price of our common stock.

Before obtaining regulatory approvals for certain generic products, we must conduct limited clinical or other trials to show comparability
to the branded products. A failure to obtain satisfactory results in these trials would prevent us from obtaining required regulatory approvals.

The success of our acquisition and licensing strategy is subject to uncertainty and any completed acquisitions or licenses may reduce our earnings, be difficult to integrate, not perform as expected or require us to obtain additional
financing.

We regularly evaluate selective acquisitions and look to continue to enhance our product line by acquiring
rights to additional products and compounds. Such acquisitions may be carried out through the purchase of assets, joint ventures and licenses or by acquiring other companies. However, we cannot assure you that we will be able to complete
acquisitions that meet our target criteria on satisfactory terms, if at all. In particular, we may not be able to identify suitable acquisition candidates, and we may have to compete for acquisition candidates.

Our competitors may have greater resources than us and therefore be better able to complete acquisitions or may cause the ultimate price we
pay for acquisitions to increase. If we fail to achieve our acquisition goals, our growth may be limited.

Acquisitions, such
as the recent Indevus acquisition, may expose us to additional risks and may have a material adverse effect on our profitability and cash flows. Any acquisitions we make may:



| |  |  | fail to accomplish our strategic objectives;
| | - |  | --------------------------------------------



| |  |  | not be successfully combined with our operations;
| | - |  | -------------------------------------------------



| |  |  | not perform as expected; and
| | - |  | ----------------------------



| |  |  | expose us to cross border risks.
| | - |  | --------------------------------

In addition, based on current acquisition prices in the pharmaceutical industry, acquisitions could decrease our net income per share and add significant intangible assets and related amortization or
impairment charges. Our acquisition strategy may require us to obtain additional debt or equity financing, resulting in leverage, increased debt obligations as compared to equity, or dilution of ownership. We may not be able to finance acquisitions
on terms satisfactory to us.

Further, if we are unable to maintain, on commercially reasonable terms, product, compound or
other licenses that we have acquired, our ability to develop or commercially exploit our products may be inhibited.

Our consolidated
financial statements may be impacted in future periods based on the accuracy of our valuation of the Indevus business.

Accounting for our acquisition of Indevus involved a complex and subjective valuation of the assets and liabilities of Indevus, which have been recorded in the Companys consolidated financial statements pursuant to authoritative
guidance for business combinations. Differences between the inputs and assumptions used in the valuation and actual results could have a significant impact on our consolidated financial statements in future periods.



32



---

##### Table of Contents

Our growth and development will depend on developing, commercializing and marketing new products,
including both our own products and those developed with our collaboration partners. If we do not do so successfully, our growth and development will be impaired.

Our future revenues and profitability will depend, to a significant extent, upon our ability to successfully commercialize new branded and generic pharmaceutical products in a timely manner. As a result,
we must continually develop, test and manufacture new products, and these new products must meet regulatory standards and receive requisite regulatory approvals. Products we are currently developing may or may not receive the regulatory approvals
necessary for us to market them. Furthermore, the development and commercialization process is time-consuming and costly, and we cannot assure you that any of our products, if and when developed and approved, can be successfully commercialized. Some
of our collaboration partners may decide to make substantial changes to a products formulation or design, may experience financial difficulties or have limited financial resources, any of which may delay the development, commercialization
and/or marketing of new products. In addition, if a co-developer on a new product terminates our collaboration agreement or does not perform under the agreement, we may experience delays and, possibly, additional costs in developing and marketing
that product.

We conduct research and development primarily to enable us to manufacture and market FDA-approved
pharmaceuticals in accordance with FDA regulations. Much of our development effort is focused on technically difficult-to-formulate products and/or products that require advanced manufacturing technology. Typically, research expenses related to the
development of innovative compounds and the filing of NDAs for these products are significantly greater than those expenses associated with ANDAs for generic products. As we continue to develop new products, our research expenses will likely
increase. Because of the inherent risk associated with research and development efforts in our industry, particularly with respect to new drugs, our research and development expenditures may not result in the successful introduction of FDA approved
new pharmaceutical products. Also, after we submit an NDA or ANDA, the FDA may require that we conduct additional studies, including, depending on the product, studies to assess the products interaction with alcohol, and as a result, we may be
unable to reasonably predict the total research and development costs to develop a particular product. Indeed, on September 27, 2007, Congress passed legislation authorizing the FDA to require companies to undertake post-approval studies in
order to assess known or signaled potential serious safety risks and to make any labeling changes necessary to address safety risks. Congress also empowered the FDA to require companies to formulate REMS to ensure a drugs benefits outweigh its
risks.

We face intense competition from brand-name companies that sell or license their own generic versions of our generic products or
seek to delay the introduction of generic products.

Brand-name pharmaceutical companies have taken aggressive steps to
thwart competition from generic equivalents of their brand-name products. In particular, brand-name companies sell directly to the generics market or license their products for sale to the generics market through licensing arrangements or strategic
alliances with generic pharmaceutical companies (so-called authorized generics). No significant regulatory approvals are currently required for a brand-name manufacturer to sell directly or through a third party to the generic market.
Brand-name manufacturers do not face any other significant barriers to entry into such market. The introductions of these so-called authorized generics have had and may continue to have an adverse effect by reducing our market share and
adversely affecting our profitability and cash flows.

In addition, brand-name companies continually seek new ways to delay
generic introduction and decrease the impact of generic competition, such as filing new patents on drugs whose original patent protection is about to expire; filing an increasing number of patents that are more complex and costly to challenge;
filing suits for patent infringement that automatically delay approval by the FDA; developing patented controlled release or other next generation products, which often reduces the demand for the generic version of the existing product for which we
may be seeking approval; changing product claims and product labeling; developing and marketing as over-the-counter products those branded products that are about to face generic competition; or filing Citizens



33



---

##### Table of Contents

Petitions with the FDA seeking restraints on our products or seeking to prevent them from coming to market. These strategies may increase the costs and risks associated with our efforts to
introduce generic products and may delay or prevent such introduction altogether.

We face intense competition from other manufacturers of
generic versions of our generic products.

Our generic products compete with branded products and with generic versions
made by or for other manufacturers, such as Mallinckrodt Inc. and Watson Pharmaceuticals, Inc. When additional versions of one of our generic products enter the market, we generally lose market share and our selling prices and margins on
the product decline. Because we are smaller than many of our full-line competitors in the generic pharmaceutical products sector, we may lack the financial and other resources needed to maintain our profit margins and market share in this sector.

If the efforts of manufacturers of branded pharmaceuticals to use litigation and legislative and regulatory means to limit the use of
generics and certain other products are successful, our sales may suffer.

Pharmaceutical companies that produce patented
brand products are increasingly employing a range of legal and regulatory strategies to delay the introduction of competing generics and certain other products to which we do not have a right of reference to all necessary preclinical and clinical
data. Opposing such measures can be costly and time-consuming and result in delays in the introduction of our products.

The
products for which we are developing generic versions may be claimed by their manufacturer to be protected by one or more patents. If we file an ANDA to seek FDA approval of our generic version of such a drug, we are required to certify that any
patent or patents listed as covering the approved listed drug are invalid, unenforceable or will not be infringed by our generic version. Similar certification requirements apply to new drug applications filed under Section 505(b)(2) of the
Federal Food, Drug and Cosmetic Act, where we rely on information to which we do not have a right of reference. Once the FDA accepts our ANDA or Section 505(b)(2) NDA, we are required to notify the brand manufacturer of this fact. The brand
manufacturer then has 45 days from the receipt of the notice in which to sue us for patent infringement. If it does so, the FDA is generally prevented from granting approval of the ANDA or Section 505(b)(2) NDA until the earliest of
30 months from the date the FDA accepted the application for filing, the conclusion of litigation in our favor (including through appeal to any federal Court of Appeals) or expiration of the patent(s).

We may be the subject of product liability claims or product recalls, and we may be unable to obtain or maintain insurance adequate to cover potential
liabilities.

Our business exposes us to potential liability risks that arise from the testing, manufacturing, marketing
and sale of our products. In addition to direct expenditures for damages, settlement and defense costs, there is a possibility of adverse publicity as a result of product liability claims. Product liability is a significant commercial risk for us.
Some plaintiffs have received substantial damage awards in some jurisdictions against pharmaceutical companies based upon claims for injuries allegedly caused by the use of their products. In addition, it may be necessary for us to recall products
that do not meet approved specifications or which subsequent data demonstrate may be unsafe or ineffective, which would also result in adverse publicity, as well as resulting in costs connected to the recall and loss of revenue.

We cannot assure you that a product liability claim or series of claims brought against us would not have an adverse effect on our business,
financial condition, results of operations and cash flows. If any claim is brought against us, regardless of the success or failure of the claim, we cannot assure you that we will be able to obtain or maintain product liability insurance in the
future on acceptable terms or with adequate coverage against potential liabilities or the cost of a recall.



34



---

##### Table of Contents

The availability of third party reimbursement for our products is uncertain, and thus we may find it
difficult to maintain current price levels. Additionally, the market may not accept those products for which third party reimbursement is not adequately provided.

Our ability to commercialize our products depends, in part, on the extent to which reimbursement for the costs of these products is available from government healthcare programs, private health insurers
and others. We cannot assure you that third party payment for our products will be adequate for us to maintain price levels sufficient for realization of an appropriate return on our investment. Government, private insurers and other third party
payers are increasingly attempting to contain healthcare costs by (1) limiting both coverage and the level of reimbursement (including adjusting co-pays) for products approved for marketing by the FDA, (2) refusing, in some cases, to
provide any coverage for uses of approved products for indications for which the FDA has not granted marketing approval and (3) requiring or encouraging, through more favorable reimbursement levels or otherwise, the substitution of generic
alternatives to branded products.

On December 8, 2003, President Bush signed into law the Medicare Prescription Drug
Improvement and Modernization Act (Medicare Modernization Act) of 2003. The Medicare Modernization Act created a new prescription drug coverage program for people with Medicare through a new system of private market insurance providers; the program
began in January 2006. This new benefit has resulted in an increased use of formularies (listings of prescription drugs approved for use) such that, in the event a Medicare beneficiarys medications are not listed on the applicable formulary,
such Medicare beneficiary may not receive reimbursement for such medications. Moreover, once these formularies are established, Medicare is not obligated to pay for drugs omitted from a formulary, and the cost of these non-covered drugs will not be
counted towards the $3,600 annual out-of-pocket beneficiary deductible established by the Medicare Modernization Act. Further, since 2006, Medicare prescription drug program beneficiaries are not permitted to purchase private insurance policies,
known as Medigap policies, to cover the cost of off-formulary medications. If our products are or become excluded from these formularies, demand for our products might decrease and we may be forced to lower prices for our products, which
may adversely affect our business, financial condition, results of operations and cash flows.

From time
to time, state Medicaid programs review our products to assess whether such products should be subject to a prior authorization process, which processes vary state-by-state but generally require physicians prescribing the products to answer several
questions prior to the product being dispensed. The institution of a prior authorization process may adversely impact the sales of the related product in the state and depending on the state, may adversely affect our business and results of
operations. On February 20, 2008, in connection with its Clinical Drug Review Program, the Pharmacy and Therapeutics Committee of the New York State Department of Health reviewed our product Lidoderm® and recommended that it be subject to a prior authorization process. As a result, on July 31, 2008, the New York State Department of Health placed
Lidoderm® in its Clinical Drug Review Program, which is a specific program within its prior authorization
program. There can be no assurance that such a process, or the institution thereof, in New York State or elsewhere would not have a material adverse effect on our business, financial condition, results of operations and cash flows.

If government and third party payers do not provide adequate coverage and reimbursement levels for users of our products, the market
acceptance of these products could be adversely affected. In addition, the following factors could significantly influence the purchase of pharmaceutical products, which would result in lower prices and a reduced demand for our products that might
force us to reduce the price of these products to remain competitive:



| |  |  | the trend toward managed healthcare in the United States;
| | - |  | ---------------------------------------------------------



| |  |  | the growth of organizations such as HMOs and managed care organizations;
| | - |  | ------------------------------------------------------------------------



| |  |  | legislative proposals to reform healthcare and government insurance programs; and
| | - |  | ---------------------------------------------------------------------------------



| |  |  | price controls and non-reimbursement of new and highly priced medicines for which the economic therapeutic rationales are not established.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------



35



---

##### Table of Contents

On February 17, 2009, President Obama signed into law the American Recovery and
Reinvestment Act of 2009, which appropriates $1.1 billion to fund comparative effectiveness research (referred to as CER) relating to healthcare treatments. Although the concept of CER now has significant momentum, numerous unresolved and
potentially contentious issues remain, and stakeholders are following implementation of this new law closely. Depending on whether and, if so, how CER is implemented, CER could possibly present regulatory, and reimbursement issues under certain
circumstances. On February 26, 2009, President Obama released his fiscal 2010 budget, which included approximately $43 billion in new revenue from biopharmaceutical companies. The impact of the Presidents proposed budget on the
Companys business, financial condition, results of operations and cash flows is not yet known. President Obama released his fiscal year (FY) 2011 budget which proposes $3.8 trillion in spending. The Presidents budget serves as an
important marker for policy proposals and the Administrations preferences. The FY 2011 budget includes a $743 billion allowance for health insurance reform. This allowance demonstrates the Administrations commitment to enacting
fundamental reforms to the U.S. health care delivery system, which may have an impact on the Companys business.

Our reporting and
payment obligations under the Medicaid rebate program and other governmental pricing programs are complex and may involve subjective decisions. Any failure to comply with those obligations could subject us to penalties and sanctions.

We are subject to various federal and state laws pertaining to healthcare fraud and abuse, including prohibitions on the offer of payment
or acceptance of kickbacks or other remuneration in return for the purchase of our products. Sanctions for violating these laws include criminal penalties and civil sanctions and possible exclusion from the Medicare, Medicaid, and other government
healthcare programs. There can be no assurance that our practices will not be challenged under these laws in the future or that such a challenge would not have a material adverse effect on our business or results of operations.

We also are subject to federal and state laws prohibiting the presentation (or the causing to be presented) of claims for payment (by
Medicare, Medicaid, or other third-party payers) that are determined to be false, fraudulent, or for an item or service that was not provided as claimed. These false claims statutes include the Federal Civil and Criminal False Claims Acts, which
allow any person to bring suit in the name of the government alleging false or fraudulent claims presented to or paid by the government (or other violations of the statutes) and to share in any amounts paid by the entity to the government in fines
or settlement. Such suits, known as qui tam actions, have increased significantly in the healthcare industry in recent years. These actions against healthcare companies may result in payment of fines or exclusion from the Medicare, Medicaid, and/or
other government healthcare programs.

We and other pharmaceutical companies are defendants in a number of lawsuits filed by
local and state government entities, alleging generally that we and numerous other pharmaceutical companies reported false pricing information in connection with certain drugs that are reimbursable under Medicaid. We intend to defend these lawsuits
vigorously. Depending on developments in the litigation however, as with all litigation, there is a possibility that we will suffer adverse decisions or verdicts of substantial amounts, or that we will enter into monetary settlements in one or more
of these actions as we recently did with a number of New York counties. See Legal proceedings in Note 14 of the Consolidated Financial Statements included in Part IV, Item 15 of this Annual Report on Form 10-K. Any
unfavorable outcomes as a result of such litigation could have a material adverse effect on our business, financial condition, results of operations and cash flows.

Government regulations regarding reporting and payment obligations are complex and we are continually evaluating the methods we use to calculate and report the amounts owed with respect to Medicaid and
other government pricing programs. Our calculations are subject to review and challenge by various government agencies and authorities and it is possible that any such review could result either in material changes to the method used for calculating
the amounts owed to the pertinent government agency (or agencies), or to the amounts themselves. In addition, because our processes for these calculations and our judgments supporting these calculations involve, and will continue to involve,
subjective decisions, these calculations are subject to the risk of errors. As noted above, any governmental agency that commences an action, if successful, could impose,



36



---

##### Table of Contents

based on a claim of violation of fraud and false claims laws or otherwise, civil and/or criminal sanctions, including fines, penalties and possible exclusion from federal healthcare programs
(including Medicaid and Medicare). Some of the applicable laws impose liability even in the absence of specific intent to defraud. Furthermore, should there be ambiguity with regard to how to properly calculate and report paymentsand even in
the absence of such ambiguitya governmental authority may take a position contrary to a position we have taken, and may impose civil and/or criminal sanctions. Any such penalties or sanctions could have a material adverse effect on our
business, financial position, results of operations and cash flows, and could cause the market value of our common stock to decline.

Once
approved, there is no guarantee that the market will accept our future products, and regulatory requirements could limit the commercial usage of our products.

Even if we obtain regulatory approvals, uncertainty exists as to whether the market will accept our products. A number of factors may limit the market acceptance of our products, including the timing of
regulatory approvals and market entry relative to competitive products, the availability of alternative products, the price of our products relative to alternative products, the availability of third party reimbursement and the extent of marketing
efforts by third party distributors or agents that we retain. We cannot assure you that our products will receive market acceptance in a commercially viable period of time, if at all. We cannot be certain that any investment made in developing
products will be recovered, even if we are successful in commercialization. To the extent that we expend significant resources on research and development efforts and are not able, ultimately, to introduce successful new products as a result of
those efforts, our business, financial position, results of operations and cash flows may be materially adversely affected, and the market value of our common stock could decline. In addition, many of our products contain narcotic ingredients that
carry stringent record keeping obligations, strict storage requirements and other limitations on these products availability, which could limit the commercial usage of these products.

We sell our products to a limited number of wholesale drug distributors and large pharmacy chains. In turn, these wholesale drug
distributors and large pharmacy chains supply products to pharmacies, hospitals, governmental agencies and physicians. Net sales to customers who accounted for 10% or more of our net sales during the years ended December 31 were as follows:



|                              |  |      |   |  |      |   |  |      |  
|----------------------------- |  | ---- | - |  | ---- | - |  | ---- | -
|                              |  | 2009 |   |  | 2008 |   |  | 2007 |  
|Cardinal Health, Inc.         |  | 35   | % |  | 36   | % |  | 34   | %
|McKesson Corporation          |  | 29   | % |  | 31   | % |  | 31   | %
|AmerisourceBergen Corporation |  | 16   | % |  | 15   | % |  | 15   | %

If we were to
lose the business of any of these customers, or if any were to experience difficulty in paying us on a timely basis, our net sales, profitability and cash flows could be materially and adversely affected.

We are dependent on outside manufacturers for the manufacture of our products; therefore, we will have limited control of the
manufacturing process and related costs. Certain of our manufacturers currently constitute the sole source of one or more of our products, including Teikoku, our sole source of Lidoderm®.

Third party manufacturers currently
manufacture substantially all of our products pursuant to contractual arrangements. Certain of our manufacturers currently constitute the sole source of one or more of our products. Because of contractual restraints and the lead-time necessary to
obtain FDA approval, and possibly DEA registration, of a new manufacturer, replacement of any of these manufacturers may be expensive and time consuming and may cause interruptions in our supply of products to customers. As a result, any such delay
could have a material adverse effect on our business, financial condition, results of operations and cash flows.

Because all
of our products are manufactured by third parties, we have a limited ability to control the manufacturing process or costs related to this process. Increases in the prices we pay our manufacturers,



37



---

##### Table of Contents

interruptions in our supply of products or lapses in quality could adversely impact our margins, profitability and cash flows. We are reliant on our third party manufacturers to maintain the
facilities at which they manufacture our products in compliance with FDA, DEA, state and local regulations. If they fail to maintain compliance with FDA, DEA or other critical regulations, they could be ordered to cease manufacturing which would
have a material adverse impact on our business, results of operations, financial condition and cash flows. In addition to FDA and DEA regulation, violation of standards enforced by the Environmental Protection Agency (referred to as the EPA), and
the Occupational Safety and Health Administration (referred to as OSHA), and their counterpart agencies at the state level, could slow down or curtail operations of third party manufacturers.

We have entered into minimum purchase requirement contracts with some of our third party manufacturers. In May 2001, we entered into a
long-term manufacturing and development agreement with Novartis Consumer Health, Inc. pursuant to which Novartis Consumer Health Inc. has agreed to manufacture certain of our commercial products in addition to products in development. As of
December 31, 2009, we are required to purchase a minimum of approximately $20 million in 2010 and approximately $21 million of product from Novartis Consumer Health Inc. in 2011.

We also have a long-term contract with Teikoku Seiyaku Co., Ltd. (referred to as Teikoku), under which Teikoku
manufactures Lidoderm® at its Japanese facility for commercial sale by us in the United States. We agreed to
purchase a minimum number of patches per year from Teikoku through 2012, representing the noncancelable portion of the Teikoku agreement. Teikoku has agreed to fix the supply price of Lidoderm® for a period of time after which the price will be adjusted at future set dates based on a price index defined in the Teikoku agreement. Since future price changes
are unknown, we have used prices currently existing under the Teikoku agreement, and estimated our minimum purchase requirement to be approximately $32 million per year through 2012. The minimum purchase requirement shall remain in effect subsequent
to 2012, except that we have the right to terminate the Teikoku agreement after 2012, if we fail to meet the annual minimum requirement.

In addition, we may consider entering into additional manufacturing arrangements with third party manufacturers. In each case, we will incur significant costs in obtaining the regulatory approvals and
taking the other steps necessary to begin commercial production by these manufacturers. If the market for the products manufactured by these third parties substantially contracts or disappears, we will continue to be financially obligated under
these contracts, an obligation which could have a material adverse effect on our business.

We are dependent on third parties to supply all
raw materials used in our products and to provide services for certain core aspects of our business. Any interruption or failure by these suppliers, distributors and collaboration partners to meet their obligations pursuant to various agreements
with us could have a material adverse effect on our business, results of operations, financial condition and cash flows.

We rely on third parties to supply all raw materials used in our products. In addition, we rely on third party suppliers, distributors and collaboration partners to provide services for certain core aspects of our business, including
manufacturing, warehousing, distribution, customer service support, medical affairs services, clinical studies, sales and other technical and financial services. All third party suppliers and contractors are subject to FDA, and very often DEA,
requirements. Our business and financial viability are dependent on the regulatory compliance of these third parties, and on the strength, validity and terms of our various contracts with these third party manufacturers, distributors and
collaboration partners. Any interruption or failure by these suppliers, distributors and collaboration partners to meet their obligations pursuant to various agreements with us could have a material adverse effect on our business, financial
condition, results of operations and cash flows.

In addition, we have entered into minimum purchase requirement contracts
with some of our third party raw material suppliers. If the market for the products that utilize these raw materials substantially contracts or disappears, we will continue to be financially obligated under these contracts and meeting such
obligations could have a material adverse effect on our business.



38



---

##### Table of Contents

We are dependent upon third parties to provide us with various estimates as a basis for our
financial reporting. While we undertake certain procedures to review the reasonableness of this information, we cannot obtain absolute assurance over the accounting methods and controls over the information provided to us by third parties. As a
result we are at risk of them providing us with erroneous data which could have a material adverse impact on our business.

The DEA limits
the availability of the active ingredients used in many of our current products and products in development and, as a result, our procurement quota may not be sufficient to meet commercial demand or complete clinical trials.

The DEA regulates chemical compounds as Schedule I, II, III, IV or V substances, with Schedule I substances considered to present
the highest risk of substance abuse and Schedule V substances the lowest risk. The active ingredients in some of our current products and products in development, including oxycodone, oxymorphone, morphine, fentanyl, sufentanil and hydrocodone,
are listed by the DEA as Schedule II or III substances under the Controlled Substances Act of 1970. Consequently, their manufacture, shipment, storage, sale and use are subject to a high degree of regulation. For example, all Schedule II
drug prescriptions must be signed by a physician, physically presented to a pharmacist and may not be refilled without a new prescription.

Furthermore, the DEA limits the availability of the active ingredients used in many of our current products and products in development and, as a result, our procurement quota of these active ingredients
may not be sufficient to meet commercial demand or complete clinical trials. We must annually apply to the DEA for procurement quota in order to obtain these substances. Any delay or refusal by the DEA in establishing our procurement quota for
controlled substances could delay or stop our clinical trials, product launches or could cause trade inventory disruptions for those products that have already been launched, which could have a material adverse effect on our business, financial
position, results of operations and cash flows.

Patent litigation which is often time-consuming and expensive could have a material
adverse effect on our business, results of operations, financial condition and cash flows.

The expense of patent
litigation, whether or not we are successful, could have an adverse effect on our business, results of operations, financial condition and cash flows. Regardless of FDA approval, should we commence a lawsuit against a third party for patent
infringement or should there be a lawsuit commenced against us with respect to any alleged patent infringement by us, in either case, whether because of the filing of an ANDA or otherwise, the uncertainties inherent in patent litigation make the
outcome of such litigation difficult to predict. The cost of such litigation as well as the ultimate outcome of such litigation, if commenced, could have a material adverse effect on our business, results of operations, financial condition and cash
flows.

We invest in securities that are subject to market risk and the recent issues in the financial markets could adversely affect the
value of our assets.

At December 31, 2009, $232.6 million of our marketable securities portfolio was invested in A,
Aa, AAA, B, Ba and Baa rated investments in auction-rate debt securities. Auction-rate securities are long-term variable rate bonds tied to short-term interest rates. After the initial issuance of the securities, the interest rate on the securities
is reset periodically, at intervals established at the time of issuance (e.g., every seven, twenty-eight, or thirty-five days; every six months; etc.). In an active market, auction-rate securities are bought and sold at each reset date through a
competitive bidding process, often referred to as a Dutch auction. Auctions are successful when the supply and demand of securities are in balance. Financial institutions brokering the auctions would also participate in the auctions to
balance the supply and demand. Beginning in the second half of 2007, auctions began to fail for specific securities and in mid-February 2008 auction failures became common, prompting market participants, including financial institutions, to cease or
limit their exposure to the auction-rate market. Given the current liquidity conditions in the global credit markets, the auction-rate securities market has become inactive. Consequently, our auction-rate securities are currently illiquid through
the normal auction process. Pursuant to the Rights (described below), we may require UBS AG to purchase certain auction rate securities beginning on June 30, 2010.



39



---

##### Table of Contents

The underlying assets of our auction-rate securities are student loans. Student loans are
insured by either the Federal Family Education Loan Program (referred to as FFELP), or a combination of FFELP and other monoline insurers such as Ambac Assurance Corp. (referred to as AMBAC) and MBIA Insurance Corp (referred to as MBIA). As of
February 19, 2010, MBIA was rated Ba3 by Moodys and BB- by Standard and Poors. AMBAC was rated Ca by Moodys and CC by Standard and Poors.

Throughout 2009, the auction-rate securities market has continued to be inactive. If credit and capital markets deteriorate further or we experience any additional ratings downgrades on any investments in
our portfolio (including on our auction-rate securities), we may incur additional impairments in future periods, which could negatively affect our financial condition, cash flow or reported earnings.

Any of these events could materially affect our results of operations and our financial condition. In the event we need to access these
funds, we could be required to sell these securities at an amount below our original purchase value. However, based on our ability to access our cash and cash equivalents and our other liquid investments, and our expected operating cash flows, we do
not expect to be required to sell these securities at a loss. However, there can be no assurance that we will not have to sell these securities at a loss.

In the event UBS AG becomes insolvent, UBS may not meet its obligations under the Rights.

On November 10, 2008, the Company accepted an offer (referred to as the UBS Offer) made by UBS AG (referred to as UBS) of auction-rate securities rights (referred to as the Rights) to the Company and
other clients of UBS Securities LLC and UBS Financial Services Inc. (collectively referred to as the UBS Entities), pursuant to which the Company is entitled to sell to UBS all auction-rate securities held by the Company as of February 13, 2008
in a UBS account (referred to as the Eligible Auction-Rate Securities). The Rights permit the Company to require UBS to purchase the Eligible Auction-Rate Securities for a price equal to original par value plus any accrued but unpaid dividends or
interest beginning on June 30, 2010 and ending on July 2, 2012 (referred to as the Expiration Date). Further, under the terms of the UBS Offer, the Company granted to the UBS Entities the sole discretion and right to sell or otherwise
dispose of, and/or enter orders in the auction process with respect to the Eligible Auction-Rate Securities on the Companys behalf until the Expiration Date, without prior notification, so long as the Company receives a payment of par value
plus any accrued but unpaid dividends or interest upon any sale or disposition.

As of December 31, 2009, we had Eligible
Auction-Rate Securities with original par value of $230.3 million, representing 92% of our total auction-rate securities portfolio at par. The remaining eight percent (8%), or $18.8 million at par, of our auction-rate securities portfolio are not
held in a UBS account and therefore are not subject to the UBS Offer.

The Rights are not secured by any assets of UBS. As a
result, if UBS becomes insolvent in the future, UBS may become unable to meet its obligations under the Rights and may not purchase Eligible Auction Rate Securities from us.

Furthermore, pursuant to the terms of the Offer and related settlement, we are eligible for no net cost loans for an amount up
to 75% of the market value of the Eligible Auction-Rate Securities at the time of the loan. In the event UBS becomes insolvent, secured creditors of UBS may be able to attach their secured interests to our no net cost loans. We have not
yet entered into any loan arrangement with UBS.

Sales of our products may be adversely affected by the consolidation of the wholesale drug
distribution and retail pharmacy industries, a trend which may continue.

The network through which we sell our products
has undergone significant consolidation marked by mergers and acquisitions among wholesale distributors and the growth of large retail drug store chains. As a result, a small number of large wholesale distributors control a significant share of the
market, and the number of independent drug stores and small drug store chains has decreased. We expect that consolidation of drug



40



---

##### Table of Contents

wholesalers and retailers will place competitive pressures on drug manufacturers, including us. If we lose any of these customer accounts, or if our relationship with them were to deteriorate,
our business could also be materially and adversely affected. Orders for our products may increase or decrease depending on the inventory levels held by our major customers. Significant increases and decreases in orders from our major customers
could cause our operating results to vary significantly from quarter to quarter.

Retail availability of our products is
greatly affected by the inventory levels our customers hold. We monitor wholesaler inventory of our products using a combination of methods, including tracking prescriptions filled at the pharmacy level to determine inventory amounts the wholesalers
have sold to their customers. Pursuant to distribution service agreements with five of our significant wholesale customers, we receive inventory level reports. For other wholesalers where we do not receive inventory level reports, however, our
estimates of wholesaler inventories may differ significantly from actual inventory levels. Significant differences between actual and estimated inventory levels may result in excessive inventory production, inadequate supplies of products in
distribution channels, insufficient or excess product available at the retail level, and unexpected increases or decreases in orders from our major customers. Forward buying by wholesalers, for example, may result in significant and unexpected
changes in customer orders from quarter to quarter. These changes may cause our revenues to fluctuate significantly from quarter to quarter, and in some cases may cause our operating results for a particular quarter to be below our expectations or
internal projections. If our financial results are below expectations for a particular period, the market price of our securities may drop significantly.

We may not be able to maintain our current insurance policies covering our business, assets, directors and officers and product liability claims and we may not be able to obtain new policies in the
future.

Property, product liability, directors and officers and general liability insurance represent
significant costs to us. Since the events of September 11, 2001, and due to an increased focus on corporate governance in the United States, and product liability lawsuits related to pharmaceuticals, liability and other types of insurance have
become more difficult and costly to obtain. Unanticipated additional insurance costs could have a material adverse effect on our results of operations and cash flows. There can be no assurance that we will be able to maintain our existing insurance
policies or obtain new policies in meaningful amounts or at a reasonable cost. Any failure to obtain or maintain any necessary insurance coverage could have a material adverse effect on our business, financial condition, results of operations and
cash flows.

If we are unable to retain our key personnel, and continue to attract additional professional staff, we may be unable to
maintain or expand our business.

Because of the specialized scientific nature of our business, our ability to develop
products and to compete with our current and future competitors will remain highly dependent, in large part, upon our ability to attract and retain qualified scientific, technical and commercial personnel. The loss of key scientific, technical and
commercial personnel or the failure to recruit additional key scientific, technical and commercial personnel could have a material adverse effect on our business. While we have consulting agreements with certain key individuals and institutions and
have employment agreements with our key executives, we cannot assure you that we will succeed in retaining personnel or their services under existing agreements. There is intense competition for qualified personnel in the areas of our activities,
and we cannot assure you that we will be able to continue to attract and retain the qualified personnel necessary for the development of our business.

We have significant goodwill and other intangible assets. Consequently, potential impairment of goodwill and other intangibles may significantly impact our profitability.

Goodwill and other intangibles represent a significant portion of our assets. As of December 31, 2009, goodwill and other intangibles
comprised approximately 37% of our total assets. Goodwill and other intangible assets are subject to an impairment analysis whenever events or changes in circumstances indicate the carrying amount of the asset may not be recoverable. Additionally,
goodwill and indefinite-lived assets are subject to an impairment test at least annually.



41



---

##### Table of Contents

Events giving rise to impairment are an inherent risk in the pharmaceutical industry and
cannot be predicted. As a result of the significance of goodwill and other intangible assets, our results of operations and financial position in a future period could be negatively impacted should an impairment of goodwill or other intangible
assets occur.

We are a holding company with no operations.

We are a holding company with no direct operations. Our principal assets are the equity interests we hold in our operating subsidiaries. As a
result, we are dependent on loans, dividends and other payments from our subsidiaries to generate the funds necessary to meet our financial obligations. Our subsidiaries are legally distinct from us and have no obligation to make funds available to
us.

Our revenues and operating results may fluctuate in future periods and we may fail to meet expectations, which may cause the price of
our common stock to decline.

Our quarterly operating results are difficult to predict and may
fluctuate significantly from period to period. Accordingly, one cannot predict our quarterly financial results based on our full-year financial guidance. We cannot predict with certainty the timing or level of sales of our products in the future. If
our quarterly sales or operating results fall below the expectations of investors or securities analysts, the price of our common stock could decline substantially. Our operating results may fluctuate due to various factors including those set forth
above. As a result of these factors, we believe that period-to-period comparisons of our operating results are not a good indication of our future performance. For example, in 2010, we have assumed that our sales of Lidoderm®, Opana® ER, Voltaren® Gel,
Supprelin® LA and Valstar® will grow over the course of the year, but there can be no assurance that sales of these products will grow at the rates anticipated, or at all.

Our stock price may be volatile, and your investment in our common stock could decline in value.

The market prices for securities of healthcare companies in general have been highly volatile and may continue to be highly volatile in the
future. For the twelve months ended December 31, 2009, our stock traded between $15.75 and $26.14 per share. The following factors, in addition to other risk factors described in this section, may cause the market price of our common stock
to fluctuate:



| |  |  | FDA approval or disapproval of any of the drug applications we have submitted;
| | - |  | ------------------------------------------------------------------------------



| |  |  | the success or failure of our clinical trials;
| | - |  | ----------------------------------------------



| |  |  | new data or new analyses of older data that raises potential safety or effectiveness issues concerning our approved products;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------



| |  |  | competitors announcing technological innovations or new commercial products;
| | - |  | ----------------------------------------------------------------------------



| |  |  | introduction of generic substitutes for our products, including the filing of ANDAs with respect to generic versions of our branded products, such as
Lidoderm®;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | developments concerning our or others proprietary rights, including patents;
| | - |  | -----------------------------------------------------------------------------



| |  |  | competitors publicity regarding actual or potential products under development;
| | - |  | --------------------------------------------------------------------------------



| |  |  | regulatory developments in the United States and foreign countries, or announcements relating to these matters;
| | - |  | ---------------------------------------------------------------------------------------------------------------



| |  |  | period-to-period fluctuations in our financial results;
| | - |  | -------------------------------------------------------



| |  |  | new legislation in the United States relating to the development, sale or pricing of pharmaceuticals;
| | - |  | -----------------------------------------------------------------------------------------------------



| |  |  | a determination by a regulatory agency that we are engaging or have engaged in inappropriate sales or marketing activities, including promoting the
off-label use of our products;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | litigation; and
| | - |  | ---------------



| |  |  | economic and other external factors, including disasters and other crises.
| | - |  | --------------------------------------------------------------------------



42



---

##### Table of Contents

If our stockholders sell substantial amounts of our common stock, the market price of our common stock
may fall.

If our stockholders sell substantial amounts of our common stock, including shares issued upon the exercise of
outstanding options, the market price of our common stock may fall. These sales also may make it more difficult for us to sell equity or equity-related securities in the future at a time and price that we deem appropriate.

Of the 6,635,782 shares that may be issued upon the exercise of options or vesting of restricted stock units outstanding as of
December 31, 2009, 2,005,355 were vested, exercisable and eligible for sale.

We have not paid, and may not pay, dividends and
therefore, unless our stock appreciates in value, investors in our stock may not benefit from holding our stock.

We have
not paid any cash dividends since our inception. The payment of cash dividends is subject to the discretion of our Board of Directors and will be dependent on many factors, including our earnings, capital needs and general financial condition.
Further, in October of 2009, we established a three-year senior secured revolving credit facility (referred to as the Credit Facility) with JP Morgan Chase Bank, Barclays Capital and certain other lenders. Subject to certain limitations, we
are permitted to pay dividends under the Credit Facility. We anticipate that, for the foreseeable future, we will retain our earnings in order to finance investments in our business. As a result, investors in our stock may not be able to benefit
from owning our stock unless the shares that these investors acquire appreciate in value.

Our operations could be disrupted if our
information systems fail or if we are unsuccessful in implementing necessary upgrades.

Our business depends on the
efficient and uninterrupted operation of our computer and communications systems and networks, hardware and software systems and our other information technology. If our systems were to fail or we are unable to successfully expand the capacity of
these systems, or we are unable to integrate new technologies into our existing systems, our operations and financial results could suffer.

The publication of negative results of studies or clinical trials may adversely impact our sales revenue.

From
time to time, studies or clinical trials on various aspects of pharmaceutical products are conducted by academics or others, including government agencies. The results of these studies or trials, when published, may have a dramatic effect on the
market for the pharmaceutical product that is the subject of the study. The publication of negative results of studiesor clinical trials related to our products or the therapeutic areas in which our products competecould adversely affect
our sales, the prescription trends for our products and the reputation of our products. In the event of the publication of negative results of studies or clinical trials related to our products or the therapeutic areas in which our products compete,
our business, financial condition, results of operations and cash flows could be materially adversely affected. In addition, on September 27, 2007, Congress enacted requirements that the results of studies and clinical trials be provided by the
investigator to the National Institutes of Health (referred to as NIH) for inclusion in a publicly-available database registry of clinical trials. There is an exception for clinical research performed on behalf of a sponsor who has not yet submitted
an NDA in connection with the drug being studied; however, it is unclear what impact the potential publication of clinical research data for our products will have.

Actions that may be taken by significant stockholders may divert the time and attention of our board of directors and management from our business operations.

Campaigns by significant investors to effect changes at publicly traded companies have increased in recent years. In August 2007, affiliates
of D.E. Shaw & Co., L.P., which collectively currently beneficially own approximately 8.3 million shares of our outstanding common stock, sent letters to our Board of Directors



43



---

##### Table of Contents

suggesting, among other things, that the Company begin a process of evaluating strategic alternatives and explore a recapitalization. In April 2008, we reached an agreement with the D. E. Shaw
group, pursuant to which Endos Board of Directors nominated William F. Spengler at the 2008 Annual Meeting of Stockholders to serve as a member of the Companys Board of Directors. Mr. Spengler is an independent unaffiliated person
who was recommended by D.E. Shaw to our Board of Directors. The D. E. Shaw group agreed to vote all of its shares in favor of the election of each of the Boards nominees at our 2008 Annual Meeting of Stockholders. At the 2008 Annual Meeting of
Stockholders, the Company stockholders elected Mr. Spengler as a director of the Company. The D.E. Shaw group is no longer subject to any restrictions with respect to its shares in the Company.

If a proxy contest were to be pursued by any of our stockholders, it could result in substantial expense to the Company and consume
significant attention of our management and Board of Directors. In addition, there can be no assurance that any stockholder will not pursue actions to effect changes in the management and strategic direction of the Company, including through the
solicitation of proxies from the Companys stockholders.

We are dependent upon the ability of Allergan to perform
its obligations with respect to sales of Sanctura® and Sanctura XR®, and Allergans failure to successfully market and commercialize Sanctura® and Sanctura XR® may delay
repayment of the Non-recourse Notes, and delay or prevent our receipt of future revenue from sales of Sanctura®
and Sanctura XR®. Royalties under the Allergan Agreement may not be sufficient for our subsidiary to meet its
payment obligations.

Two of our products Sanctura® and Sanctura XR® are treatments for OAB marketed by Allergan. Under the terms of our agreement with Allergan (which we refer to as the Allergan Agreement), Allergan is responsible for
all U.S. marketing and sales activities relating to Sanctura® and Sanctura XR®, and Allergan is obligated to pay royalties based on net sales of Sanctura® and Sanctura XR®. Royalty payments in respect of net sales of Sanctura® and Sanctura XR® in the U.S.
are entirely dependent on the actions, efforts and success of Allergan, over whom neither we nor our subsidiary Ledgemont Royalty Sub LLC, have control. Neither we nor our subsidiary, Ledgemont Royalty Sub LLC, can ensure that Allergan effectively
maximizes the potential sales of Sanctura® and Sanctura XR®.

In
August 2008, Indevus transferred to its wholly-owned subsidiary, Ledgemont Royalty Sub LLC, all of its rights under the Allergan Agreement. Ledgemont Royalty Sub LLC issued $105.0 million in aggregate principal amount of Non-recourse Notes, which
were secured by the assets of Ledgemont Royalty Sub LLC, including the rights to receive royalty payments from Allergan relating to future sales of Sanctura® and Sanctura XR® in the U.S.
under the Allergan Agreement. As of December 31, 2009, $57 million in aggregate principal amount of Non-recourse Notes are outstanding.

Ledgemont Royalty Sub LLC is entitled to receive certain minimum royalties under the Allergan Agreement; however, such minimum royalties may not be sufficient for Ledgemont Royalty Sub LLC to meet its
payment obligations under the Non-recourse Notes. If Allergan is not successful with respect to Sanctura® and
Sanctura XR® , and royalties paid to Ledgemont Royalty Sub LLC are not in excess of these minimum amounts,
Ledgemont Royalty Sub LLC may not be able to meet its payment obligations under the Non-recourse Notes. In addition, Allergans obligation to pay minimum royalties may be reduced, suspended or eliminated following certain adverse events
pertaining to regulatory non-compliance, generic competition, lack of product supply and other events. Any such reduction, suspension or elimination of royalties could result in Ledgemont Royalty Sub LLC receiving significantly reduced or no
royalties under the Allergan Agreement, in which case, Ledgemont Royalty Sub LLC may not be able to meet its payment obligations under the Non-recourse Notes.

An event of default under the Non-recourse Notes will occur if Ledgemont Royalty Sub LLC is unable to meet its interest payment obligations under the Non-recourse Notes from royalty payments received from
Allergan, unless any interest payment shortfalls are satisfied in accordance with the terms of the indenture governing the Non-recourse Notes. An interest payment shortfall may be satisfied by capital contributions from the Company, however no
assurances can be made that the Company will exercise this right, and this right may not be exercised more than six times over the life of the Non-recourse Notes and no more than three consecutive times. Based on current expectations, it is
reasonably possible that we may exceed the maximum number of



44



---

##### Table of Contents

times we can fund the capital account to satisfy an interest payment shortfall as early as November 2010. In the event the Company determines not to, or is no longer permitted to make capital
contributions to Ledgemont Royalty Sub LLC to satisfy interest payment shortfalls and the Company does not redeem the Non-recourse Notes, an event of default under the indenture governing the Non-recourse Notes will occur.

Upon the occurrence of an event of default under the indenture, the noteholders will have the right to accelerate the obligations of
Ledgemont Royalty Sub LLC to pay amounts outstanding under the Non-recourse Notes and may exercise their remedies under the indenture, including assuming all rights to future payments from Allergan. The loss of our right to receive royalties from
Allergan under the Allergan Agreement could adversely affect our business and results of operations.

In certain circumstances, we may lose
the potential to receive future royalty payments after the Non-recourse Notes are repaid in full or we may be required to pay damages for breaches of representations, warranties or covenants under certain of the Non-recourse Note financing
agreements.

In connection with the transfer of rights under the Allergan Agreement from Indevus to Ledgemont Royalty Sub
LLC and the issuance of the Non-recourse Notes, Indevus made certain representations, warranties and covenants to Ledgemont Royalty Sub LLC, and Ledgemont Royalty Sub LLC made certain representations, warranties and covenants to the holders of the
Non-recourse Notes. If there is a breach of these representations, warranties or covenants, such breach could trigger an event of default under the indenture governing the Non-recourse Notes. Upon the occurrence of an event of default under the
indenture, the noteholders may have the right to accelerate the obligations of Ledgemont Royalty Sub LLC to pay amounts outstanding under the Non-recourse Notes and may exercise their remedies under the indenture, including assuming all rights to
future payments from Allergan. The loss of our right to receive royalties from Allergan under the Allergan Agreement could adversely affect our business and results of operations.

The regulatory approval process outside the U.S. varies depending on foreign regulatory requirements, and failure to obtain regulatory approval in foreign jurisdictions would prevent the marketing
of our products in those jurisdictions.

We have worldwide rights to market many of our products and
product candidates. We intend to seek approval of and market certain of our products outside of the U.S. To market our products in the European Union and many other foreign jurisdictions, we must obtain separate regulatory approvals and comply with
numerous and varying regulatory requirements. Approval of a product by the comparable regulatory authorities of foreign countries must still be obtained prior to manufacturing or marketing that product in those countries. The approval procedure
varies among countries and can involve additional testing, and the time required to obtain approval may differ from that required to obtain FDA approval. The foreign regulatory approval process includes all of the risks associated with obtaining FDA
approval set forth in this Annual Report on Form 10-K and approval by the FDA does not ensure approval by the regulatory authorities of any other country, nor does the approval by foreign regulatory authorities in one country ensure approval by
regulatory authorities in other foreign countries or the FDA. Other than the approval of Vantas® for marketing
in the European Union and certain other foreign jurisdictions, we may not be able to file for regulatory approvals or may not receive necessary approvals to commercialize our products in any foreign market. If we fail to comply with these regulatory
requirements or obtain and maintain required approvals, our target market will be reduced and our ability to generate revenue from abroad will be adversely affected.

If the indemnitors default on their obligations, the outcome of the Redux litigation could materially harm us.

On September 15, 1997, Indevus announced a market withdrawal of its first commercial prescription product, the anti-obesity medication Redux (dexfenfluramine hydrochloride capsules C-IV), which had
been launched in June 1996 by its licensee, American Home Products Corporation, which became Wyeth and was later acquired by Pfizer. The withdrawal of Redux was based on a preliminary analysis by the FDA of potential



45



---

##### Table of Contents

abnormal echocardiogram findings associated with certain patients taking Redux or the combination of fenfluramine with phentermine. Following the withdrawal, Indevus was named, together with
other pharmaceutical companies, as a defendant in several thousand product liability legal actions, some of which purport to be class actions, in federal and state courts relating to the use of Redux and other weight loss drugs. The existence of
such litigation may materially adversely affect our business. In addition, although we are unable to predict the outcome of any such litigation, if successful uninsured or insufficiently insured claims, or if a successful indemnification claim, were
made against us, our business, financial condition and results of operations could be materially adversely affected. In addition, the uncertainties associated with these legal actions may have an adverse effect on the market price of our common
stock and on our ability to obtain product liability insurance for other products at costs acceptable to us, or at all, which may materially adversely affect our business, financial condition and results of operations.

On May 30, 2001, Indevus entered into an Indemnity and Release Agreement with Wyeth, which provides for indemnification of
Redux-related claims brought by plaintiffs who initially opted out of Wyeths national class action settlement of diet drug litigation and by those claimants who allege primary pulmonary hypertension. This agreement also provides for funding of
all defense costs related to all Redux-related claims and provides for Wyeth to fund certain additional insurance coverage to supplement the Companys existing product liability insurance. However, there can be no assurance that uninsured or
insufficiently insured Redux-related claims or Redux-related claims for which we are not otherwise indemnified or covered under the AHP indemnity and release agreement will not have a material adverse effect on our future business, results of
operations or financial condition or that the potential of any such claims would not adversely affect our ability to obtain sufficient financing to fund operations. We are unable to predict whether the existence of such litigation may adversely
affect our business.

Pursuant to agreements we have with Les Laboratories Servier, from whom Indevus in-licensed rights to
Redux, Boehringer Ingelheim Pharmaceuticals, Inc., which assembled Redux, and other parties, we may be required to indemnify such parties for Redux-related liabilities. We are unable to predict whether such indemnification obligations, if they
arise, may adversely affect our business.



|Item 1B | Unresolved Staff Comments
|------- | -------------------------

Not applicable.



|Item 2. | Properties
|------- | ----------

We lease all of our properties pursuant to operating leases. Our properties are as follows:



|                                             |  |                           |  |                            |  |                                 
|-------------------------------------------- |  | ------------------------- |  | -------------------------- |  | --------------------------------
|Property                                     |  | Location                  |  | Purpose                    |  | Square Footage                  
|Painters Crossing One Associates, L.P.(1)   |  | Chadds Ford, Pennsylvania |  | Corporate Headquarters     |  | approximately 47,756 square feet
|Painters Crossing Two Associates, L.P.(2)   |  | Chadds Ford, Pennsylvania |  | Corporate Headquarters     |  | approximately 64,424 square feet
|Painters Crossing Three Associates, L.P.(3) |  | Chadds Ford, Pennsylvania |  | Corporate Headquarters     |  | approximately 48,600 square feet
|Brandywine Seven(4)                          |  | Chadds Ford, Pennsylvania |  | Corporate Headquarters     |  | approximately 23,949 square feet
|177 Cantiaque Rock Road LLC(5)               |  | Westbury, New York        |  | Research and Development   |  | approximately 24,190 square feet
|Cedar Brook LP(6)                            |  | Cranbury, New Jersey      |  | Distribution/Manufacturing |  | approximately 51,000 square feet



|(1) | - Lease term ends July, 2011
|--- | ----------------------------

|(2) | - Lease term ends January, 2015
|--- | -------------------------------

|(3) | - Lease term ends March, 2018
|--- | -----------------------------

|(4) | - Lease term ends January, 2015
|--- | -------------------------------

|(5) | - Lease term ends May, 2013
|--- | ---------------------------

|(6) | - Lease term ends March, 2015
|--- | -----------------------------



46



---

##### Table of Contents

|Item 3. | Legal Proceedings
|------- | -----------------

The disclosures under Note 14. Commitments and Contingencies-Legal Proceedings, included in the consolidated financial statements in Part IV, Item 15 of this Annual Report on Form 10-K are
incorporated in this Part I, Item 3 by reference.

PART II



|Item 5. | Market for Registrants Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
|------- | ------------------------------------------------------------------------------------------------------------

Market Information.Our common stock is traded on the NASDAQ Global Select Market under the symbol
ENDP. The following table sets forth the quarterly high and low share price information for the periods indicated. The prices shown represent quotations between dealers, without adjustment for retail markups, markdowns or commissions,
and may not represent actual transactions.



|                              |  |                  |       |     |   |      
|----------------------------- |  | ---------------- | ----- | --- | - | -----
|                              |  | Endo CommonStock
|                              |  | High             |       | Low
|Year Ending December 31, 2009 |  |                  |       |     |   |      
|1st Quarter                   |  | $                | 26.14 |     | $ | 16.29
|2nd Quarter                   |  | $                | 18.55 |     | $ | 15.75
|3rd Quarter                   |  | $                | 23.37 |     | $ | 16.81
|4th Quarter                   |  | $                | 24.10 |     | $ | 19.11
|Year Ending December 31, 2008 |  |                  |       |     |   |      
|1st Quarter                   |  | $                | 28.48 |     | $ | 22.62
|2nd Quarter                   |  | $                | 26.56 |     | $ | 23.60
|3rd Quarter                   |  | $                | 25.47 |     | $ | 19.46
|4th Quarter                   |  | $                | 25.99 |     | $ | 13.87

Holders. As of
February 19, 2010, we estimate that there were approximately 68 record holders of our common stock.

Dividends.We
have never declared or paid any cash dividends on our capital stock. In October 2009, we established a $300 million, three-year senior secured revolving credit facility (referred to as the Credit Facility) with JP Morgan Chase Bank,
Barclays Capital and certain other lenders. Subject to certain limitations, we are permitted to pay dividends under the Credit Facility.



47



---

##### Table of Contents

Performance Graph.The following graph provides a comparison of the cumulative total
stockholder return on the Companys common stock with that of the cumulative total stockholder return on the (i) NASDAQ Stock Market Index (U.S.) and (ii) the NASDAQ Pharmaceutical Index, commencing on December 31, 2004 and
ending December 31, 2009. The graph assumes $100 invested on December 31, 2004 in the Companys common stock and in each of the comparative indices. Our historic stock price performance is not necessarily indicative of future stock
price performance.

LOGO



|                                   |  |              |        |      |   |        |  |      |        |      |   |        |  |   |        |  |   |       
|---------------------------------- |  | ------------ | ------ | ---- | - | ------ |  | ---- | ------ | ---- | - | ------ |  | - | ------ |  | - | ------
|                                   |  | December 31,
|                                   |  | 2004         |        | 2005 |   | 2006   |  | 2007 |        | 2008 |   | 2009  
|Endo Pharmaceuticals Holdings Inc. |  | $            | 100.00 |      | $ | 144.03 |  | $    | 131.27 |      | $ | 126.94 |  | $ | 123.18 |  | $ | 97.67 
|NASDAQ Composite Index             |  | $            | 100.00 |      | $ | 101.33 |  | $    | 114.01 |      | $ | 123.71 |  | $ | 73.11  |  | $ | 105.61
|NASDAQ Pharmaceutical Index        |  | $            | 100.00 |      | $ | 102.23 |  | $    | 105.16 |      | $ | 99.56  |  | $ | 91.99  |  | $ | 98.21 

Recent sales of
unregistered securities; Use of proceeds from registered securities.During the fourth quarter of 2009, the Company did not sell any unregistered securities.



48



---

##### Table of Contents

Purchase of equity securities by the issuer and affiliated purchasers.The following
table reflects purchases of Endo Pharmaceuticals Holdings Inc. common stock by the Company during the three-months ended December 31, 2009:



|                                      |  |                                 |  |                             |   |                                                                |   |                                                                         |   |            
|------------------------------------- |  | ------------------------------- |  | --------------------------- | - | -------------------------------------------------------------- | - | ----------------------------------------------------------------------- | - | -----------
|Period                                |  | Total Number ofShares Purchased |  | Average Price Paidper Share |   | Total Number ofSharesPurchased asPart of PubliclyAnnouncedPlan |   | Approximate DollarValue of Sharesthat May Yet bePurchased Underthe
Plan
|October 1, 2009 to October 31, 2009   |  |                                |  | $                           |  |                                                                |  |                                                                         | $ | 325,184,018
|November 1, 2009 to November 30, 2009 |  |                                |  |                             |  |                                                                |  |                                                                         |   | 325,184,018
|December 1, 2009 to December 31, 2009 |  |                                |  |                             |  |                                                                |  |                                                                         |   | 325,184,018
|                                      |  |                                 |  |                             |   |                                                                |   |                                                                         |   |            
|Total                                 |  |                                |  | $                           |  |                                                                |  |                                                                         | $ | 325,184,018
|                                      |  |                                 |  |                             |   |                                                                |   |                                                                         |   |            



49



---

##### Table of Contents

|Item 6. | Selected Financial Data
|------- | -----------------------

The consolidated financial data presented below have been derived from our audited financial statements. The selected historical consolidated
financial data presented below should be read in conjunction with Item 7. Managements Discussion and Analysis of Financial Condition and Results of Operations and Item 8. Financial Statements and Supplementary Data. The
selected data in this section is not intended to replace the consolidated financial statements. The information presented below is not necessarily indicative of the results of our future operations. Certain prior year amounts have been reclassified
to conform to the current year presentation.



|                                                          |  |                                               |           |   |      |   |           |      |  |   |           |   |  |      |           |   |  |   |           |  
|--------------------------------------------------------- |  | --------------------------------------------- | --------- | - | ---- | - | --------- | ---- |  | - | --------- | - |  | ---- | --------- | - |  | - | --------- | -
|                                                          |  | Year Ended December 31,                       |          
|                                                          |  | 2009                                          |           |   | 2008 |   |           | 2007 |  |   | 2006      |   |  | 2005 |          
|                                                          |  | (dollars in thousands, except per share data) |          
|Consolidated Statement of Operations Data:                |  |                                               |           |   |      |   |           |      |  |   |           |   |  |      |           |   |  |   |           |  
|Total revenues                                            |  | $                                             | 1,460,841 |   |      | $ | 1,260,536 |      |  | $ | 1,085,608 |   |  | $    | 909,659   |   |  | $ | 820,164   |  
|                                                          |  |                                               |           |   |      |   |           |      |  |   |           |   |  |      |           |   |  |   |           |  
|Operating income                                          |  |                                               | 390,024   |   |      |   | 387,474   |      |  |   | 317,226   |   |  |      | 210,529   |   |  |   | 313,249   |  
|Income before income tax                                  |  |                                               | 359,660   |   |      |   | 391,828   |      |  |   | 353,250   |   |  |      | 233,734   |   |  |   | 324,244   |  
|                                                          |  |                                               |           |   |      |   |           |      |  |   |           |   |  |      |           |   |  |   |           |  
|Net income                                                |  | $                                             | 266,336   |   |      | $ | 255,336   |      |  | $ | 227,440   |   |  | $    | 137,839   |   |  | $ | 202,295   |  
|                                                          |  |                                               |           |   |      |   |           |      |  |   |           |   |  |      |           |   |  |   |           |  
|Basic and Diluted Net Income Per Share:                   |  |                                               |           |   |      |   |           |      |  |   |           |   |  |      |           |   |  |   |           |  
|Basic                                                     |  | $                                             | 2.27      |   |      | $ | 2.07      |      |  | $ | 1.70      |   |  | $    | 1.03      |   |  | $ | 1.53      |  
|Diluted                                                   |  | $                                             | 2.27      |   |      | $ | 2.06      |      |  | $ | 1.69      |   |  | $    | 1.03      |   |  | $ | 1.52      |  
|Shares used to compute basic net income per share         |  |                                               | 117,112   |   |      |   | 123,248   |      |  |   | 133,903   |   |  |      | 133,178   |   |  |   | 132,242   |  
|Shares used to compute diluted net income per share       |  |                                               | 117,515   |   |      |   | 123,720   |      |  |   | 134,525   |   |  |      | 133,911   |   |  |   | 133,289   |  
|Cash dividends declared per share                         |  |                                               |          |   |      |   |          |      |  |   |          |   |  |      |          |   |  |   |          |  
|                                                          | 
|                                                          |  | As of and for the Year Ended December 31,     |          
|                                                          |  | 2009                                          |           |   | 2008 |   |           | 2007 |  |   | 2006      |   |  | 2005 |          
|                                                          |  | (dollars in thousands)                        |          
|Consolidated Balance Sheet Data:                          |  |                                               |           |   |      |   |           |      |  |   |           |   |  |      |           |   |  |   |           |  
|Cash and cash equivalents                                 |  | $                                             | 708,462   |   |      | $ | 775,693   |      |  | $ | 350,325   |   |  | $    | 628,085   |   |  | $ | 500,956   |  
|Total assets                                              |  |                                               | 2,488,803 |   |      |   | 1,908,733 |      |  |   | 1,702,638 |   |  |      | 1,396,689 |   |  |   | 1,371,678 |  
|Long-term debt                                            |  |                                               | 322,534   |   |      |   | 243,150   |      |  |   |          |   |  |      |          |   |  |   |          |  
|Other long-term obligations, including capitalized leases |  |                                               | 196,678   |   |      |   | 71,999    |      |  |   | 13,390    |   |  |      | 17,602    |   |  |   | 18,795    |  
|Stockholders equity                                      |  | $                                             | 1,497,411 |   |      | $ | 1,207,111 |      |  | $ | 1,292,290 |   |  | $    | 1,040,988 |   |  | $ | 843,370   |  
|Other Financial Data:                                     |  |                                               |           |   |      |   |           |      |  |   |           |   |  |      |           |   |  |   |           |  
|Net cash provided by operating activities                 |  | $                                             | 295,406   |   |      | $ | 355,627   |      |  | $ | 365,742   |   |  | $    | 345,334   |   |  | $ | 284,644   |  
|Net cash (used in) provided by investing activities       |  |                                               | (245,509  | ) |      |   | 179,807   |      |  |   | (614,528  | ) |  |      | (66,449   | ) |  |   | (26,684   | )
|Net cash used in financing activities                     |  | $                                             | (117,128  | ) |      | $ | (110,066  | )    |  | $ | (28,974   | ) |  | $    | (151,756  | ) |  | $ | (35,038   | )



|Item 7. | Managements Discussion and Analysis of Financial Condition and Results of Operations
|------- | -------------------------------------------------------------------------------------

The following Managements Discussion and Analysis of Financial Condition and Results of Operations
(referred to as MD&A) describes the principal factors affecting the results of operations, liquidity and capital resources, and critical accounting estimates at Endo. This discussion should be read in conjunction with our audited consolidated
financial statements and related notes thereto. Except for the historical information contained in this Report, this Report, including the following discussion, contains forward-looking statements that involve risks and uncertainties. See
Forward-Looking Statements beginning on page 1 of this Report.



50



---

##### Table of Contents

EXECUTIVE SUMMARY

About the Company

Endo Pharmaceuticals Holdings Inc., which we
refer to as Endo, we, us, or the Company, is a specialty pharmaceutical company. The Company, through its wholly-owned subsidiary, Endo Pharmaceuticals Inc. (Endo or EPI), is engaged in the research,
development, manufacturing, marketing and sale of branded and generic prescription pharmaceuticals used primarily to treat and manage pain, overactive bladder, prostate and bladder cancer and the early onset of puberty in children, or central
precocious puberty.

We have a portfolio of branded products that includes established brand names such as
Lidoderm®, Opana® ER and Opana®, Percocet®, Frova®, Voltaren® Gel, Sanctura
XR®, Sanctura®, Vantas®, Valstar®, and Supprelin® LA. Branded products comprised approximately 91% of our revenues in the year ended 2009, with 52% of our revenues coming from Lidoderm®. Our non-branded generic portfolio, which accounted for 9% of revenues in the year ended 2009, currently consists of
products primarily focused in pain management. We focus on selective generics that have one or more barriers to market entry, such as complex formulation, regulatory or legal challenges or difficulty in raw material sourcing.

In the first quarter of 2009, we acquired Indevus, a specialty pharmaceutical company engaged in the acquisition,
development and commercialization of products to treat conditions in urology, endocrinology and oncology. Indevuss approved products include Sanctura® and Sanctura XR® for OAB,
which are promoted in the U.S. by Allergan, Vantas® for advanced prostate cancer, Supprelin® LA for CPP, Delatestryl® for the treatment of hypogonadism and Valstar® for bladder cancer. We also acquired from Indevus a core urology and endocrinology portfolio containing multiple compounds in development including AveedTMfor hypogonadism, and the octreotide implant for acromegaly and
carcinoid syndrome. All financial information presented herein reflects the operating results of Indevus from February 23, 2009 to December 31, 2009.

Through a dedicated sales force in the United States, consisting of 320 specialty representatives, 365 Pharmaceutical sales representatives focusing primarily on pain products, 75 sales representatives
focusing primarily on urology and oncology, 27 medical center representatives and a contract sales force of approximately 80 sales representatives, we market our branded pharmaceutical products to high-prescribing physicians in pain management,
orthopedics, neurology, rheumatology, surgery, anesthesiology, oncology, urology, endocrinology and primary care, including pediatricians. Our sales force also targets retail pharmacies and other healthcare professionals throughout the United
States.

2009A Year in Review

During 2009, we achieved record revenues while expanding our therapeutic focus beyond pain management into urology,
endocrinology and oncology, and further diversifying our branded product revenues. We acquired a new drug delivery technology and important new products, including Valstar®, a drug for the treatment of bladder cancer, which we re-launched in September 2009. In 2009, the Company committed to a growth strategy that it intends to achieve
through increased collaborations with leading academic institutions and pharmaceutical companies, new marketing programs for our current product line and new product or company acquisitions.

Revenues for the year ended December 31, 2009 were $1.46 billion, a 16% increase over 2008, with net income in 2009
of $266.3 million, or $2.27 per diluted share, as compared to 2008 net income of $255.3 million or $2.06 per diluted share. The increase in revenues was primarily due to the continued growth of Opana® ER and Opana®,
and Voltaren® Gel. Also, included for the year ended December 31, 2009 are revenues of our recently
acquired products from our acquisition of Indevus on February 23, 2009. The increase in net income is primarily attributable to revenue growth and favorable acquisition-related items of $93.1 million associated with the Indevus transaction
which were partially offset by increases in research and development expenses, driven primarily by upfront and milestone expenses of $77.1 million and $69.0 million in asset impairments.



51



---

##### Table of Contents

Strategic Focus

Our business strategy is to maximize the future growth of the Company and to strengthen our position as a leading specialty pharmaceutical company by delivering innovative, commercially viable products
and technologies to meet unmet medical and customer needs in our existing therapeutic and complementary areas. Execution of our strategy will incorporate the following key elements:



| |  |  | Developing new products through both an internal and a virtual research and development organization with greater scientific and clinical capabilities;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Expanding the Companys product line by acquiring new products and technologies in existing therapeutic and complementary areas;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------



| |  |  | Enhancing the Companys business model to deliver multiple therapeutic options within the care pathway for each of our therapeutic areas of focus
to provide the best outcomes for patients, physicians, providers and payers;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Increasing revenues and earnings through sales and marketing programs for our innovative product offerings and effectively using the Companys
resources; and
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Providing additional resources to support our generics business.
| | - |  | ----------------------------------------------------------------

We believe that successful execution of our business strategy will enhance shareholder value.

The Company has continued to work to implement this new strategy through the following initiatives:

Refocused sales and marketing programs:

We are positioning the Company to work more closely with healthcare professionals to help them achieve better outcomes and solve issues related to the quality, efficiency and cost of patient care. We are
taking a holistic approach to address the total healthcare solution for all of our customers.

This past
year, we reorganized our commercial group and sales territories to increase the operating efficiency and effectiveness of the Companys sales teams. This reorganization is intended to make the Companys sales representatives more
responsive to our customers and better able to allocate time to physicians and institutions who may require additional information about the Companys products, particularly Lidoderm®, Opana® ER and Opana® , Voltaren® Gel, Frova®, Valstar®, Vantas® and Supprelin® LA. We are
also expanding our efforts to effectively demonstrate the value of our products to patients, providers, and payers. Through our recently formed Health Outcomes and PharmacoEconomics (Hope) group, we are developing and communicating the scientific
and economic value of our products to address the market need for cost effective treatments. We continue to expand our efforts to educate all stakeholders on the effectiveness of our products and the impact they have on patient outcomes and quality
of life. We recognize patients want to be informed about the treatment options available to them. Educating them regarding the treatment choices available in the therapeutic area and our products specifically to facilitate a dialogue with their
healthcare profession is a component of our educational activities. We are also assessing patient satisfaction with their treatments and their preferences among drug delivery methods and attempting to understand the factors that ultimately lead to
patient compliance and persistence. In doing so, we believe we will be able to identify and address unmet medical needs and continue to evolve our business to address our customers needs. Understanding and delivering the total healthcare
solution to all of our customers in an integrated manner is a major component of our strategic focus.

New research and
development priorities:

We have assembled an experienced and multi-disciplined research and development team of scientists
and technicians with proven expertise across the continuum of the research and development process. Through strengthened internal expertise and external partnerships, we have begun to undertake discovery and earlier stage development programs in an
effort to enhance our pipeline through internal efforts. Notwithstanding our expansion into discovery and early-stage programs, our research and development team is also partnering closely



52



---

##### Table of Contents

with business development to identify late-stage development products with the goal of bringing products with near-term revenue potential to market. Accordingly, a significant portion of our
research and development spending will go toward funding these late-stage programs. In addition, though leveraging research and development partners, including collaborations with both leading academic institutions and pharmaceutical companies, we
have been able to introduce a broad range of programs at different clinical phases within the development process and also in different therapeutic areas of focus. Through a strategic collaborative approach with our partners, we will remain flexible
and scalable as we continue to drive pipeline development. The capabilities we have built in the research and development function will allow us to quickly identify new opportunities, evaluate them against our broadening portfolio priorities, and if
desired, efficiently pursue them.

Investment in new therapeutic areas:

Endo also is building an externally-focused business structure to prepare us for continued success by identifying the assets the Company
needs today, ranging from the right products to the appropriate partners, as well as the assets the Company will need in its portfolio to succeed in the future.

We continue to enjoy strong results from our base businesses and believe Endos strong revenue base and sales teams represent strategic assets that can be leveraged to continue to expand the
Companys pharmaceutical business. With a foothold in pain management, urology, endocrinology and oncology, we are identifying complementary medical specialties where demographic, healthcare and reimbursement trends favor the consideration of
new products to address unmet medical needs and a healthcare environment that demands better efficiencies and outcomes. The acquisition of Indevus Pharmaceuticals, provided us products to treat overactive bladder, prostate cancer, hypogonadism and
central precocious puberty, and we are pursuing regulatory approval of drugs to treat hypogonadism and acromegaly.

Continuing
on our path of becoming a stronger competitor, and a more valuable healthcare supplier, and enhancing shareholder value, Endo intends to pursue other strategic acquisitions that support the growth of the Companys core businesses. Through these
investments we are aiming to provide multiple therapeutic options throughout the patient care pathway of a specified disease state. This may include exploring a variety of diagnostics, drugs, devices or any combination thereof as we diversify our
product base. We will also continue to make strategic decisions to support and grow our generics business. We are focusing on high-barrier-to-entry generic therapies that offer meaningful value to patients, payers and providers. We currently have
fifteen ANDA submissions on file with the FDA, thirteen of which have launch targets in the foreseeable future. In addition, we plan to capitalize on the success of our branded products business by launching authorized generics for our branded
products as they lose exclusivity.

Business Environment

The Company conducts its business within the pharmaceutical industry, which is highly competitive and subject to numerous government
regulations. Many competitive factors may significantly affect the Companys sales of its products, including product efficacy, safety, price and cost-effectiveness, marketing effectiveness, product labeling, quality control and quality
assurance at our third-party manufacturing operations, and research and development of new products. To successfully compete for business in the healthcare industry, the Company must demonstrate that its products offer medical benefits as well as
cost advantages. Currently, most of the Companys products compete with other products already on the market in the same therapeutic category, in addition to potential competition of new products that competitors may introduce in the future.
The Company manufactures branded products, which are priced higher than generic products. Generic competition is one of the Companys leading challenges.

In the pharmaceutical industry, the majority of an innovative products commercial value is usually realized during the period that the product has market exclusivity. When a product loses
exclusivity, it is no longer protected by a patent and is subject to new competing products in the form of generic brands. Upon exclusivity loss, the Company can lose a major portion of that products sales in a short period of time.
Intellectual property rights have increasingly come under attack in the current healthcare environment. Generic drug firms have filed



53



---

##### Table of Contents

Abbreviated New Drug Applications (referred to as ANDAs) seeking to market generic forms of certain of the Companys key pharmaceutical products, prior to expiration of the applicable
patents covering those products. In the event the Company is not successful in defending the patent claims challenged in ANDA filings, the generic firms will then introduce generic versions of the product at issue, resulting in the potential for
substantial market share and revenue losses for that product. For a complete description of legal proceedings, see Note 14 of the Consolidated Financial Statements included in Part IV, Item 15 of this Annual Report on Form 10-K.

The healthcare industry is subject to various government-imposed regulations authorizing prices or price controls that have
and will continue to have an impact on the Companys sales. The U.S. Congress and some state legislatures have considered a number of proposals and have enacted laws that could result in major changes in the current healthcare system, either
nationally or at the state level. Driven in part by budget concerns, Medicaid access and reimbursement restrictions have been implemented in some states and proposed in many others. In addition, the Medicare Prescription Drug Improvement and
Modernization Act provides outpatient prescription drug coverage to senior citizens in the U.S. This legislation has had a modest favorable impact on the Company as a result of an increase in the number of seniors with drug coverage. At the same
time, there continues to be a potential negative impact on the U.S. pharmaceutical business that could result from pricing pressures or controls.

The growth of Managed Care Organizations (referred to as MCOs) in the U.S. has increased competition in the healthcare industry. MCOs seek to reduce healthcare expenditures for participants by making
volume purchases and entering into long-term contracts to negotiate discounts with various pharmaceutical providers. Because of the market potential created by the large pool of participants, marketing prescription drugs to MCOs has become an
important part of the Companys strategy. Companies compete for inclusion in MCO formularies and the Company generally has been successful in having its major products included. The Company believes that developments in the managed care
industry, including continued consolidation, have had and will continue to have a generally downward pressure on prices.

Changes in the behavior and spending patterns of purchasers of health care products and services, including delaying medical procedures, rationing prescription medications, reducing the frequency of physician visits and foregoing health
care insurance coverage, as a result of the current global economic downturn may impact the Companys business.

Pharmaceutical production processes are complex, highly regulated and vary widely from product to product. We contract with various third party manufacturers and suppliers to provide us with raw materials used in our products and finished
goods. Our most significant agreements are with Novartis Consumer Health, Inc., Teikoku Seiyaku Co., Ltd., Mallinckrodt Inc., Almac Pharma Services and Sharp Corporation. Shifting or adding manufacturing capacity can be a lengthy process that could
require significant expenditures and regulatory approvals. If for any reason we are unable to obtain sufficient quantities of any of the finished goods or raw materials or components required for our products, it could have a material adverse effect
on our business, financial condition, results of operations and cash flows.

The Company has maintained a competitive position
in the market and strives to uphold this position, which is dependent on its success in discovering and developing innovative, cost-effective products that serve unmet medical need.

Healthcare Reform

In the United States, the Medicare Prescription Drug Improvement and Modernization Act of 2003 continues to provide an effective prescription drug benefit to seniors and individuals with disabilities in the Medicare program (Medicare
Part D). Currently, uncertainty exists due to the healthcare reform legislation currently being considered by Congress. While these proposals have the potential to increase the number of U.S. residents with access to health care services, they
also have the potential to impose new costs and increase pricing pressures on the pharmaceutical industry. Virtually all of the proposals seek to reduce significantly the number of uninsured Americans through a combination of private insurance
market reforms, mandates on



54



---

##### Table of Contents

individuals to have health insurance coverage, and premium subsidies to individuals to assist in the purchase of healthcare insurance. Upon obtaining healthcare coverage, previously
uninsured individuals are likely to consume more healthcare services, including pharmaceutical products. However, many of the legislative proposals being debated by Congress seek cost savings through additional pricing pressures on prescription
products. For example, one proposal being considered would require the Secretary of Health and Human Services to negotiate Medicare Part D prescription drug prices directly with pharmaceutical manufacturers in order to leverage greater
savings. Further, proposals to expand coverage to the uninsured may be financed through increased rebates or the imposition of a tax on the pharmaceutical industry. In addition to the federal debate on health care reform, many states are facing
substantial budget difficulties due to the downturn in the economy and are expected to seek aggressive cuts or other offsets in healthcare spending. Accordingly, we expect pricing pressures at the federal and state levels to intensify, which
could have a material effect on the consolidated results of operations, cash flows and/or financial position.

FDA advisory
committee

The FDA held a public advisory committee meeting in June 2009 to discuss acetaminophen use in both
over-the-counter (referred to as OTC) and prescription (referred to as Rx) products, the potential for liver injury, and potential interventions to reduce the incidence of liver injury. The panels recommendations followed the release in
May 2009 of an FDA report that found severe liver damage, and even death, can result from a lack of consumer awareness that acetaminophen can cause such injury. These recommendations are advisory in nature and the FDA is not bound to follow these
recommendations.

At this time, the FDA has not made any decisions regarding acetaminophen-containing
products, but has stated that it is reviewing the recommendations of the advisory committee, all available safety and efficacy data as well as public input before making a final decision. Therefore, it is unclear what actions the FDA may take in
response to the panels recommendations. Implementation by the FDA of certain specific panel recommendations could result in (1) a boxed warning on the labels of prescription acetaminophen combination products or (2) the removal of
several products from the marketplace including certain, or even all, strengths of Percocet® and Endocet®. The recommendation does not change the safety and efficacy of Percocet® and Endocet®, which remain FDA approved. Endo remains committed to working with the FDA so that these products are prescribed in the best interest of patients, and we will
continue to closely monitor this issue. Any action taken by the FDA to implement certain of the recommendations of the panel, or take other measures to address concerns raised by the panel, could have a material adverse effect on our
consolidated results of operations and cash flows.

Indevus Acquisition

The Company completed its acquisition of Indevus on March 23, 2009, at which time Indevus became a wholly-owned
subsidiary of EPI. The Company paid approximately $368 million in cash for the outstanding shares of Indevus and entered into the AveedTMContingent Cash Consideration Agreement and the Octreotide Contingent Cash Consideration Agreement (each as defined in
the Merger Agreement), providing for the payment of up to an additional $3.00 per Indevus Share in contingent cash consideration payments. The total cost to acquire all outstanding Indevus Shares pursuant to the Offer and the Merger could be up to
an additional approximately $267 million.

Pipeline Developments

In January 2009, the Company announced that by mutual agreement it concluded its research collaboration with Alexza
Pharmaceuticals, Inc. (referred to as Alexza) to develop an inhaled fentanyl product for the treatment of breakthrough pain using Alexzas Staccato® inhalation technology. The product, Staccato® fentanyl, has completed Phase I clinical testing and was returned to Alexza. In 2007, Endo licensed exclusive rights to develop and commercialize Staccato® fentanyl in North America.

As part of our continuing strategic review of projects and programs, in February 2009, we decided to discontinue development activities related to EN3285, our oral rinse for the treatment of oral
mucositis obtained



55



---

##### Table of Contents

through our acquisition of RxKinetix in October 2006 and EN3270 transdermal sufentanil patch for the treatment of moderate-to-severe chronic pain. EN3270 was licensed from Durect Corporation in
March 2005. We will return to Durect all development rights to its transdermal sufentanil patch.

In February 2009, we entered
into a Discovery Collaboration Agreement with Aurigene Discovery Technologies Limited (referred to as Aurigene Agreement). The Aurigene Agreement is a three-year collaboration to discover novel drug candidates to treat cancer.

In February 2009, we entered into a Development, License and Supply Agreement with Grünenthal GMBH, (referred to as Grünenthal
Agreement), granting us the exclusive right in North America to develop and market Grünenthals investigational drug, axomadol. Currently in Phase II trials, Axomadol is a patented new chemical entity being developed for the treatment of
moderate to moderately-severe chronic pain and diabetic peripheral neuropathic pain.

In March 2009, the
FDA accepted for review the complete response submission to the new drug application for AveedTMintramuscular injection, an investigational testosterone preparation for the treatment of male hypogonadism. On December 2, 2009, we received a complete response letter from the FDA regarding AveedTM. The FDA issues Complete Response letters to
communicate that their initial review of an NDA or abbreviated new drug application (ANDA) is complete and that the application cannot be approved in its present form. A Complete Response also informs applicants of changes that must be made before
an application can be approved, with no implication regarding the ultimate approvability of the application. In the complete response letter, the FDA has requested information from Endo to address the agencys concerns regarding very rare but
serious adverse events, including post-injection anaphylactic reaction and pulmonary oil microembolism. The letter also specified that the proposed REMS is not sufficient. The Company is continuing to evaluate how best to address the concerns of the
FDA and intends to have future dialogue with the agency regarding a possible regulatory pathway. For a discussion of the impact of the FDAs Complete Response Letter on our AveedTMintangible asset and the AveedTMcontingent consideration liability, see Critical Accounting Estimates  Goodwill and Indefinite-lived Intangible
Assets in this section.

In July 2009, the Company entered into a License, Development and Supply Agreement (referred to as
the Bioniche Agreement) with Bioniche Life Sciences Inc. and Bioniche Urology Inc. (collectively referred to as Bioniche), whereby the Company licensed from Bioniche the exclusive rights to develop and market Bioniches proprietary formulation
of Mycobacterial Cell Wall-DNA Complex (referred to as MCC), known as Urocidin in the U.S. with an option for global rights. We exercised our option for global rights in the first quarter of 2010. Urocidin is a patented formulation of
MCC developed by Bioniche for the treatment of non-muscle-invasive bladder cancer that is currently undergoing Phase III clinical testing.

In August 2009, we entered into a License and Supply Agreement (referred to as the ProStrakan Agreement) with Strakan International Limited, a subsidiary of ProStrakan Group plc (referred to as
ProStrakan), for the exclusive right to commercialize Fortesta in the U.S. Fortesta, a patented two percent (2%) testosterone transdermal gel for testosterone replacement therapy in male hypogonadism. The therapy utilizes a metered
dose delivery system designed to permit accurate dose adjustment to individual patient requirements. In October 2009, we received a Complete Response letter from the FDA regarding the NDA for Fortesta. The Company will continue to work closely
with the FDA to address their questions and we expect to file a complete response, mid-2010. The potential of this action was considered in the structure of the deal to in-license this product as the milestone payment to ProStrakan related to FDA
approval of Fortesta is reduced the longer such approval takes, subject to certain limits.

In December 2009, the
Pro2000 Phase III clinical trials, known as MDP 301, were completed by the Microbicides Development Programme (MDP), a not-for-profit partnership of 16 African and European research institutions. MDP 301, the largest international clinical trial to
date into a preventative HIV gel, found no evidence that Pro2000 reduces the risk of HIV infection in women. This placebo-controlled trial involved 9,385 women at six research centers in four African countries and found that the risk of HIV
infection in women who



56



---

##### Table of Contents

were supplied with Pro2000 gel was not significantly different than in women supplied with placebo gel. This trial shows conclusively that Pro2000 gel is of no added benefit, ending scientific
speculation about its clinical importance. Accordingly, we recorded an impairment charge of $4.0 million during the fourth quarter of 2009.

Branded Business Activity

In February 2009, the Company, and Penwest
Pharmaceuticals (referred to as Penwest) settled litigation with Actavis South Atlantic LLC (referred to as Actavis) regarding the production and sale of generic formulations of Opana® ER (oxymorphone hydrochloride) Extended Release Tablets CII. Endo and Penwest have agreed to dismiss their suit with prejudice and Actavis has agreed to dismiss its
counterclaims with prejudice. Under the terms of the settlement, Endo and Penwest have agreed to grant Actavis a license to the patents to sell a generic version of Opana® ER on or after July 15, 2011, and earlier under certain circumstances and have agreed not to sue Actavis under such patents.

In June 2009, the Company entered into a License Agreement with Valeant Canada Ltd (referred to as Valeant) granting
Valeant a license to market Opana® and Opana® ER in Canada, Australia and New Zealand (referred to as the Valeant Agreement). Opana® ER, the extended release formulation of oxymorphone, was jointly developed by Penwest and Endo. Under the terms of the collaboration agreement between Penwest and
Endo, the two companies have agreed to share equally in the proceeds received from Valeant for Opana® ER. The
Valeant Agreement also includes rights to Opana®, the immediate release formulation of oxymorphone developed by
Endo.

In February 2009, we received FDA approval to re-introduce Valstar® after modifying its formulation. Valstar® was originally approved by the FDA for this indication in 1998 and marketed by Anthra Pharmaceuticals, Inc. (referred to as Anthra). In 2002, Valstar® was voluntarily withdrawn by Anthra from the U.S. market because of a formulation issue with an inactive component.
Since market removal, Valstar® has been on the FDA Drug Shortages List, which was established to address and
alleviate shortages primarily of medically necessary drug products, since these can have significant public health consequences. Valstar® represents the first product launch by Endo in the urology and oncology therapy markets.

In November 2009, the Company reached a settlement with LecTec Corporation which had filed a complaint in the United
States District Court for the Eastern District of Texas against the Company and several other pharmaceutical companies alleging that each of the defendants sells products that infringe one or more claims of patents owned by LecTec. The
Companys product Lidoderm® was identified in the complaint. Under the terms of the settlement, Endo has
obtained an exclusive license for the patents identified in the complaint for use in the field of prescription pain medicines and treatment.

Change in Directors and Executive Officers

In February 2009, the Company announced the appointment of
William P. Montague to the Companys board of directors. Mr. Montague retired in July 2008 as chief executive officer and a director of Mark IV Industries. Mark IV Industries is a diversified global manufacturer of highly-engineered
systems and components for the transportation, industrial and automotive markets. He joined Mark IV Industries in April 1972, became chief financial officer in 1986 and was named president in 1996. Mr. Montague is also a director of Gibraltar
Industries, Inc., a NASDAQ-listed company that is a leading manufacturer, processor and distributor of products for the building, industrial, and vehicular markets. Mr. Montague serves as a member of the audit committee of Endos Board.

In March 2009, the Company announced the appointment of Nancy J. Hutson, Ph.D., to the Companys Board of Directors.
Dr. Hutson retired from Pfizer, Inc. in 2006 after spending 25 years in various research and leadership positions with that company, serving most recently as senior vice president, Pfizer Global Research and Development and director of
Pfizers pharmaceutical R&D site, known as Groton/New London Laboratories.



57



---

##### Table of Contents

Dr. Hutson currently is a director of Cubist Pharmaceuticals, Inc. and Inspire Pharmaceuticals, Inc. and serves on the board of Planned Parenthood of Connecticut. Dr. Hutson serves as a
member of the compensation committee and the transactions committee of Endos board.

On May 5, 2009, the
Companys Board of Directors appointed Alan G. Levin to be the Companys Executive Vice President and Chief Financial Officer, effective June 1, 2009.

On August 12, 2009, the Company announced the resignation of Nancy J. Wysenski, Endos Chief Operating Officer. Ms. Wysenskis resignation was effective September 1, 2009. Endo
has engaged an executive search firm to assist in the search for a new chief operating officer.

RESULTS OF OPERATIONS

The Company reported net income for 2009 of $266.3 million or $2.27 per diluted share on total revenues of $1.46 billion compared with net
income of $255.3 million or $2.06 per diluted share on total revenues of $1.26 billion for 2008.

Year Ended December 31, 2009
Compared to the Year Ended December 31, 2008

Revenues

Revenues for the year ended December 31, 2009 increased 16% to $1.46 billion from $1.26 billion in the comparable
2008 period. This increase in revenues is primarily driven by increased sales of Opana® ER and Opana®, and Voltaren® Gel, a topical drug added to our portfolio in March 2008. Additionally, new products from our acquisition of Indevus, included in other brands, accounted for 4% of
total revenues at December 31, 2009. Lidoderm® net sales as a percent of total revenues have decreased from
61% of total revenues at December 31, 2008 to 52% of total revenues at December 31, 2009. We expect this trend to continue as we continue to diversify our product portfolio. For the year-ended December 31, 2009, increased sales volume
contributed 12% of the total revenue growth while price increases contributed the remaining 4%.

The following table displays
our revenues by product category and as a percentage of total revenues for the years ended December 31 (dollars in thousands):



|                                 |  |           |  |      |  |           |  |    
|-------------------------------- |  | --------- |  | ---- |  | --------- |  | ---
|                                 |  | 2009      |  | 2008
|                                 |  | $         |  | %    |  | $         |  | %  
|Lidoderm®                        |  | 763,698   |  | 52   |  | 765,097   |  | 61 
|Opana® ER and Opana®             |  | 230,631   |  | 16   |  | 180,429   |  | 14 
|Percocet®                        |  | 127,090   |  | 9    |  | 129,966   |  | 10 
|Voltaren® Gel                    |  | 78,868    |  | 5    |  | 23,791    |  | 2  
|Frova®                           |  | 57,924    |  | 4    |  | 58,017    |  | 5  
|Other brands                     |  | 68,635    |  | 5    |  | 10,904    |  | 1  
|                                 |  |           |  |      |  |           |  |    
|Total brands                     |  | 1,326,846 |  | 91   |  | 1,168,204 |  | 93 
|Total generics                   |  | 124,731   |  | 9    |  | 92,332    |  | 7  
|Total royalty and other revenues |  | 9,264     |  | *    |  |          |  |   
|                                 |  |           |  |      |  |           |  |    
|Total revenues                   |  | 1,460,841 |  | 100  |  | 1,260,536 |  | 100
|                                 |  |           |  |      |  |           |  |    



|* |  amount less than 1%.
|- | ----------------------

Lidoderm®. Net sales of Lidoderm® for the year ended December 31, 2009 decreased by $1.4 million to $763.7 million from $765.1 million in the
comparable 2008 period. The growth of this product has slowed as it matures and competition in the topical pain market increases. Notwithstanding, the product has had a solid performance this year and continues to generate strong cash flow that we
can use to invest in our business to continue to further diversify our revenue base.



58



---

##### Table of Contents

Opana® ER and Opana®.Net
sales of Opana® ER and Opana® for the year ended December 31, 2009 increased by 28% or $50.2 million to $230.6 million from $180.4 million in the comparable 2008 period. The growth in net
sales is primarily attributable to continued prescription and market share growth of the products, as we continue to drive our promotional efforts through physician targeting. In addition, our strategy to effectively contract with managed care
organizations has resulted in increases in volume as we have broadened our access for the brand.

Percocet®. Net sales of Percocet® for the year ended December 31, 2009 decreased by $2.9 million or 2% to $127.1 million from $130.0 million in the comparable 2008 period.

Voltaren® Gel. Net sales of Voltaren® Gel for the year ended December 31, 2009 increased by $55.1 million or 232% to $78.9 million from $23.8 million in the comparable 2008 period. The Company launched Voltaren® Gel in March 2008. This increase reflects a full year of activity versus a partial year of sales in the comparable 2008 period. Additionally, we believe the
growth of Voltaren® Gel since its launch is driven by the products proven clinical efficacy combined with
our continued promotional activities aimed at increasing product awareness in the target audience. We believe we are establishing a strong position in the osteoarthritis market with Voltaren® Gel.

Frova®. Net sales of Frova® for the year ended December 31, 2009 remained relatively unchanged at $57.9 million compared to $58.0 million in 2008.

Other brands. Net sales of our other branded products for the year ended December 31, 2009 increased by
$57.7 million or 529% to $68.6 million from $10.9 million in the comparable 2008 period. This increase is primarily driven by net sales of Supprelin® LA and Vantas®, both
acquired from Indevus during 2009. Net sales of Supprelin® LA from the acquisition date through
December 31, 2009 were $27.8 million. Net sales of Vantas® from the acquisition date
December 31, 2009 were $20.0 million

Generics. Net sales of our generic products for the year ended
December 31, 2009 increased by $32.4 million or 35% to $124.7 million from $92.3 million in the comparable 2008 period. The 2009 increase was primarily due to a shortage of other competing generic opioids in the market during the first half of
2009. The supply of these generic products has largely returned to normal levels and consequently our net sales of generic products for the year ended December 31, 2009 may not be indicative of future results.

Royalty and other revenues.Royalty and other revenues for the year ended December 31, 2009 were $9.3
million. These amounts consist primarily of royalties earned on net sales of Sanctura® and Sanctura XR®.

Gross Margin, Costs and Expenses

The following table sets forth costs and expenses for the years ended
December 31 (dollars in thousands):



|                                              |  |      |           |   |               |    |    |   |   |         |               |  |    |  
|--------------------------------------------- |  | ---- | --------- | - | ------------- | -- | -- | - | - | ------- | ------------- |  | -- | -
|                                              |  | 2009 |           |   | 2008          |   
|                                              |  | $    |           |   | % of revenues |    |    | $ |   |         | % of revenues | 
|Cost of revenues                              |  | $    | 375,058   |   |               | 26 | %  |   | $ | 267,235 |               |  | 21 | %
|Selling, general and administrative           |  |      | 534,523   |   |               | 37 | %  |   |   | 488,063 |               |  | 38 | %
|Research and development                      |  |      | 185,317   |   |               | 13 | %  |   |   | 110,211 |               |  | 9  | %
|Acquisition-related items                     |  |      | (93,081   | ) |               | (6 | )% |   |   |        |               |  |   | %
|Impairment of other intangible assets         |  |      | 69,000    |   |               | 5  | %  |   |   | 8,083   |               |  | 1  | %
|Purchased in-process research and development |  |      |          |   |               |   | %  |   |   | (530    | )             |  | *  | %
|                                              |  |      |           |   |               |    |    |   |   |         |               |  |    |  
|Total costs and expenses**                    |  | $    | 1,070,817 |   |               | 73 | %  |   | $ | 873,062 |               |  | 69 | %
|                                              |  |      |           |   |               |    |    |   |   |         |               |  |    |  



|* |  amount less than 1%.
|- | ----------------------

|** |  total percentages may not sum due to rounding.
|-- | ------------------------------------------------



59



---

##### Table of Contents

Costs of Revenues and Gross Margin. Costs of revenues for
the year ended December 31, 2009 increased by $107.9 million or 40%, to $375.1 million from $267.2 million in the comparable 2008 period. Gross profit margins were 74% for the year ended December 31, 2009 compared with 79% during the year
ended December 31, 2008. The decrease in the gross margin is primarily due to a $32.1 million increase in intangible asset amortization expense mainly related to the increase in intangible assets acquired as part of the Indevus acquisition
during the first quarter of 2009. In addition, cost of revenues includes an additional $19.3 million for royalties on sales of Opana® ER for the year ended December 31, 2009 compared to $5.0 million for the comparable 2008 period. Furthermore, as part of our acquisition of Indevus, we were
required to fair value the acquired inventories which has resulted in the recognition of an additional $11.3 million in cost of revenues for the year ended December 31, 2009 which has negatively impacted our gross profit margin.

Selling, General and Administrative Expenses.Selling, general and administrative expenses for the year ended
December 31, 2009 increased by 10% to $534.5 million from $488.1 million in the comparable 2008 period. This increase is primarily due to the acquisition of Indevus during the first quarter of 2009 which contributed approximately $63 million or
13% of the increase. These amounts were partially offset by the favorable impact of certain cost reduction initiatives and the timing of certain sales and marketing programs.

Research and Development Expenses.Research and development expenses for the year ended December 31, 2009 increased by
68% to $185.3 million from $110.2 million in the comparable 2008 period. Research and development expense reflects the Companys ongoing commitment to clinical research as well as the impact of the Companys external collaborations. The
increase in expense for the year ended December 31, 2009 when compared to the same period in 2008 is primarily attributable to the upfront payments of $10.0 million and $20.0 million made to ProStrakan and Bioniche, respectively; and $34.7
million of upfront and milestone payments made to Grünenthal related to axomadol, all of which were expensed during the year ended December 31, 2009. During 2008, we incurred upfront milestone payments of $8.9 million.

Acquisition-Related Items.As a result of our acquisition of Indevus in the first quarter of 2009, we incurred
acquisition-related costs of $35.0 million attributable to transaction fees, professional service fees, employee retention and separation arrangements, and other costs related to the acquisition. These costs were more than offset by favorable
changes in the fair value of the acquisition-related contingent consideration which resulted in a gain of $128.1 million during the year ended December 31, 2009.

Impairment of Other Intangible Assets.During the year ended December 31, 2009, we recorded an
impairment charge of $65.0 million relating to the write-down of our AveedTMindefinite-lived intangible asset and a $4.0 million write-off of our Pro2000 indefinite-lived intangible asset. As a result of the FDAs response letter received in December of 2009, the Company
has reassessed the fair value of our AveedTMindefinite-lived intangible asset and concluded that the asset was impaired due to a change in probability of approval, relative timing of commercialization and the changes to the targeted population of eligible recipients. The extent of the
impairment was partially offset due to the Company being notified that the U.S. patent office had issued a Notice of Allowance on a patent covering the AveedTMformulation. The patent should expire no earlier than late 2025. Further, due to the unsuccessful Phase III clinical
trials for Pro2000, which were completed in December of 2009, the Company concluded there was no further value or alternative use associated with this indefinite-lived asset. During the year ended December 31, 2008, as a result of our decision
to discontinue the development of RapinylTM, we recorded
an impairment charge in the amount of $8.1 million to write-off the remaining balance of our RapinylTMintangible asset.

Purchased In-Process Research and Development.
Purchased in-process research and development in 2008 reflects the reversal of a contingent payment liability originally recorded upon the acquisition of RxKinetix in 2006.



60



---

##### Table of Contents

Interest Expense (Income), net

The components of interest expense (income), net for the years ended December 31 are as follows (in thousands):



|                               |  |      |        |   |      |   |         |  
|------------------------------ |  | ---- | ------ | - | ---- | - | ------- | -
|                               |  | 2009 |        |   | 2008 |  
|Interest expense               |  | $    | 41,247 |   |      | $ | 18,726  |  
|Interest income                |  |      | (3,529 | ) |      |   | (24,833 | )
|                               |  |      |        |   |      |   |         |  
|Interest expense (income), net |  | $    | 37,718 |   |      | $ | (6,107  | )
|                               |  |      |        |   |      |   |         |  

Interest expense for the year ended December 31, 2009 was $41.2 million compared with $18.7 million for
the comparable period in 2008. This increase is primarily due to interest expense recognized on the 16% Non-recourse Notes and the 6.25% convertible notes assumed from Indevus. Additionally, the increase in interest expense reflects a full year of
debt discount accretion and interest expense relating to our 1.75% Convertible Senior Subordinated Notes for the year ended December 31, 2009 compared to approximately eight months for the year ended December 31, 2008. Interest income
decreased to $3.5 million for the year ended December 31, 2009 compared to $24.8 million in the comparable 2008 period. This decrease is a result of the fluctuations in the amount of cash invested in interest-bearing accounts, including
our money market funds and auction-rate securities and the yields on those investments. During the first half of 2008, as a result of uncertainties in the global credit markets, the auction-rate securities market became illiquid and since that time,
yields on these securities have decreased significantly.

Other (Income) Expense, net

The components of other (income) expense, net for the years ended December 31 are as follows (in thousands):



|                                                           |  |      |         |   |      |   |         |  
|---------------------------------------------------------- |  | ---- | ------- | - | ---- | - | ------- | -
|                                                           |  | 2009 |         |   | 2008 |  
|Other-than-temporary impairment of auction-rate securities |  | $    |        |   |      | $ | 26,417  |  
|Unrealized (gain) loss on trading securities               |  |      | (15,222 | ) |      |   | 4,225   |  
|Loss (gain) on Auction-Rate Securities Rights              |  |      | 11,662  |   |      |   | (27,321 | )
|Other                                                      |  |      | 231     |   |      |   | (1,568  | )
|                                                           |  |      |         |   |      |   |         |  
|Other (income) expense, net                                |  | $    | (3,329  | ) |      | $ | 1,753   |  
|                                                           |  |      |         |   |      |   |         |  

During the fourth quarter of 2008, the Company recorded a $26.4 million other-than-temporary impairment
charge related to certain of its auction-rate securities and upon accepting the UBS Offer of auction-rate securities rights, the Company made a one-time election to transfer these auction-rate securities out of the available-for-sale category and
into the trading category. As such, the change in the fair value of these securities is now charged to earnings. During the year ended December 31, 2009, the value of our trading auction-rate securities increased by $15.2 million. The increases
in fair value were partially offset by losses recorded as a result of decreases in the fair value of our auction-rate securities rights totaling $11.7 million.

Gain on Extinguishment of Debt

As a result of the cash tender offer
for any and all outstanding Non-recourse notes, which closed in September 2009, the Company accepted for payment and purchased Non-recourse notes at a purchase price of $1,000 per $1,000 principal amount, for a total amount of approximately $48
million (excluding accrued and unpaid interest up to, but not including, the payment date for the Notes, fees and other expenses in connection with the tender offer). The aggregate principal amount of Non-recourse notes purchased represents
approximately 46% of the $105 million aggregate principal amount of Non-recourse notes that were outstanding prior to the tender offer closing. Accordingly, the Company recorded a $4.0 million gain on the extinguishment of debt, net of transaction
costs. The gain was calculated as the difference between the aggregate amount paid to purchase the Non-recourse notes and their carrying amount.



61



---

##### Table of Contents

Income Tax

Income tax expense for the year ended December 31, 2009 decreased by 32% to $93.3 million from $136.5 million in the comparable 2008 period. The decrease in income tax expense is primarily a result
of a decrease in our effective tax rate. Our effective tax rate for the year ended December 31, 2009 decreased to 26.0% from 34.8% in 2008. The decrease in the effective income tax rate is primarily the result of a reduction in the Indevus
contingent consideration of $128.1 million during the year ended December 31, 2009, of which $115.7 million was non-taxable resulting in a favorable impact on the effective tax rate. The decrease in the Companys effective income tax rate
is also attributable to a decrease in the Companys state effective tax rate, which was due primarily to Pennsylvania state income tax law changes enacted in the fourth quarter of 2009 and further integration of Indevus into our state tax
profile. These decreases in the Companys effective income tax rate were partially offset by lower tax exempt interest income compared to 2008, the absence of tax benefits realized in 2008 for the reversal of certain of the Companys
unrecognized tax contingencies, for the settlement of various tax positions, as well as the transaction costs incurred for the acquisition of Indevus in 2009 which were determined to be non-deductible.

2010 Outlook

We estimate that our 2010 total revenues will be between $1.55 billion and $1.60 billion. Our estimate is based on the continued growth of our branded product portfolio, primarily driven by prescription
demand for Lidoderm®, Opana® ER and Voltaren® Gel and the
full year impact of the acquisition of Indevus and growth of the products acquired. Cost of revenues as a percent of total revenues is expected to increase when compared to 2009. This cost of sales increase is expected due to a full year of
amortization expense associated with the intangible assets acquired with Indevus, the impact of a full year of royalties on the 2010 net sales of Opana® ER, and the supply price of inventory purchased from third party manufacturers which includes an anticipated impact from foreign exchange. Selling, general and
administrative expenses, as a percentage of revenues, are expected to decline in 2010, relative to 2009, reflecting new approaches to customer segmentation and marketing as well as annualized effects of the prior years cost reduction efforts.
We will continue to provide promotional support behind our key on-market products, including those acquired as part of our acquisition of Indevus. R&D expenses are expected to increase as we invest in clinical development programs in support of
our third party collaboration agreements as well as the further advancement of the development products being acquired from Indevus. Of course, there can be no assurance that the Company will achieve these results.

Year Ended December 31, 2008 Compared to the Year Ended December 31, 2007

Revenues

Revenues for the year ended December 31, 2008 increased 16% to $1.26 billion from $1.09 billion in the comparable 2007 period. This increase in total revenues is primarily driven by increased sales of Lidoderm® as well as increased net sales of Opana® ER and Opana®, and
Voltaren® Gel which launched in March of 2008. For the year-ended December 31, 2008, increased sales volume
contributed 15% of the total revenues growth of 16%, while price increases contributed the remaining 1% of the total revenues growth.



62



---

##### Table of Contents

The following table displays our revenues by product category and as a percentage of total
revenues for the years ended December 31 (dollars in thousands):



|                     |  |           |  |      |  |           |  |    
|-------------------- |  | --------- |  | ---- |  | --------- |  | ---
|                     |  | 2008      |  | 2007
|                     |  | $         |  | %    |  | $         |  | %  
|Lidoderm®            |  | 765,097   |  | 61   |  | 705,587   |  | 65 
|Opana® ER and Opana® |  | 180,429   |  | 14   |  | 107,143   |  | 10 
|Percocet®            |  | 129,966   |  | 10   |  | 121,742   |  | 11 
|Frova®               |  | 58,017    |  | 5    |  | 52,437    |  | 5  
|Voltaren® Gel        |  | 23,791    |  | 2    |  |          |  |   
|Other brands         |  | 10,904    |  | 1    |  | 11,065    |  | 1  
|                     |  |           |  |      |  |           |  |    
|Total brands         |  | 1,168,204 |  | 93   |  | 997,974   |  | 92 
|Total generics       |  | 92,332    |  | 7    |  | 87,634    |  | 8  
|                     |  |           |  |      |  |           |  |    
|Total revenues       |  | 1,260,536 |  | 100  |  | 1,085,608 |  | 100
|                     |  |           |  |      |  |           |  |    

Lidoderm®. Net sales of Lidoderm® for the year ended December 31, 2008 increased by $59.5 million or 8%, to $765.1 million from $705.6 million in the comparable 2007 period. The increase is
primarily attributable to continued prescription growth of the product. We believe the continued growth of Lidoderm® is driven by the products proven clinical effectiveness combined with our continued promotional activities positioning Lidoderm® as the only prescription analgesic patch specifically designed to effectively relieve the localized pain of post-herpetic neuralgia (PHN) with low risk of
systemic side effects and drug to drug interactions. We believe we also are benefiting from our educational programs designed to improve our target audiences understanding regarding the localized pain of PHN. In addition, our managed care
efforts are focused on Medicare Part D, which consists predominately of elderly patients who are at greater risk for PHN. Medicare Part D has also served to raise overall awareness among formulary decision-maker resulting in an ongoing assessment of
how best to secure access for patients. As expected, we recognize that the growth of this product is beginning to slow as it matures and competition in the topical pain market increases.

Opana® ER and Opana®.Net
sales of Opana® ER and Opana® for the year ended December 31, 2008 increased by 68% or $73.3 million to $180.4 million from $107.1 million in the comparable 2007 period. The growth in net
sales is primarily attributable to continued prescription growth of the product, as we continue to drive our promotional efforts through our expanded sales force and our contracting strategy. In addition, net sales of Opana® ER and Opana® for the year ended December 31, 2007 includes $13.8 million of deferred revenue recognized during the first quarter of 2007 for commercial shipments made to
customers during 2006.

Percocet®. Net sales of Percocet® for the year ended December 31, 2008 increased by $8.3 million or 7%, to $130.0 million from $121.7 million in the comparable 2007 period. This increase is
primarily attributable to improved pricing during the year ended December 31, 2008.

Frova®. Net sales of Frova® for the year ended December 31, 2008 increased by $5.6 million or 11%, to $58.0 million from $52.4 million in the comparable 2007 period. The growth in net sales
is primarily attributable to continued prescription growth of the product, as we continue to drive our promotional efforts through our sales force.

Voltaren® Gel. Net sales of Voltaren® Gel for the year ended December 31, 2008 were $23.8 million. The Company launched Voltaren® Gel in March 2008.

Generics. Net sales of our generic products for the year ended December 31, 2008 increased by $4.7 million or 5%, to $92.3 million from $87.6 million in the comparable 2007 period. Generic
competition with all of our products may have a material impact on our results of operations and cash flows in the future.



63



---

##### Table of Contents

Gross Margin, Costs and Expenses

The following table sets forth costs and expenses for the years ended December 31 (dollars in thousands):



|                                              |  |      |         |   |               |     |      |   |               |  |     
|--------------------------------------------- |  | ---- | ------- | - | ------------- | --- | ---- | - | ------------- |  | ----
|                                              |  | 2008 |         |   | % of revenues |     | 2007 |   | % of revenues
|Cost of revenues                              |  | $    | 267,235 |   |               | 21% |      | $ | 217,369       |  | 20% 
|Selling, general and administrative           |  |      | 488,063 |   |               | 38% |      |   | 411,869       |  | 38% 
|Research and development                      |  |      | 110,211 |   |               | 9%  |      |   | 138,255       |  | 13% 
|Impairment of other intangible assets         |  |      | 8,083   |   |               | 1%  |      |   | 889           |  |   %
|Purchased in-process research and development |  |      | (530    | ) |               | *%  |      |   |              |  |   %
|                                              |  |      |         |   |               |     |      |   |               |  |     
|Total costs and expenses                      |  | $    | 873,062 |   |               | 69% |      | $ | 768,382       |  | 71% 
|                                              |  |      |         |   |               |     |      |   |               |  |     



|* |  amount less than 1%.
|- | ----------------------

Costs of Revenues and Gross Margin. Costs of revenues for the year ended December 31, 2008 increased by $49.8 million or 23%, to $267.2 million from $217.4 million in the comparable
2007 period. Gross profit margins were 79% for the year ended December 31, 2008 compared with 80% during the year ended December 31, 2007. The increase in costs of revenues is primarily due to a $25.9 million increase in intangible asset
amortization expense related to commercial products and the increase in total revenues volume. In 2008, the Companys intangible assets included additions totaling $175.7 million, $46.7 million of which resulted from the settlement of our note
receivable with Vernalis, and the remaining $129.0 million resulting from our licensing arrangement with Novartis AG for Voltaren® Gel. The decrease in gross profit margins is primarily due to the increased amortization as mentioned above.

Selling, General and Administrative Expenses.Selling, general and administrative expenses for the year
ended December 31, 2008 increased by 18% to $488.1 million from $411.9 million in the comparable 2007 period. This increase is primarily due to an increase in sales and promotional efforts in 2008 over the comparable 2007 periods due to our
continued investment in our commercial business and our infrastructure to support our key on-market products and pipeline. Selling, general and administrative expenses in 2008 include the impact of the continuing investments in infrastructure to
support Endos long-term growth, including the addition of approximately 100 sales representatives during the second half of 2007, as well as the addition during 2008 of 275 contract sales representatives for the launch of Voltaren® Gel. In addition, during the year ended December 31, 2008, we recognized $10.5 million in separation benefits
provided to former employees. These increases have been partially offset by cost reduction initiatives and headcount reduction completed in July 2008. Selling, general and administrative expenses in 2007 include the full year impact of the expansion
of the sales force that occurred in the second half of 2006, combined with continuing investments in infrastructure to support Endos long-term growth and the continued launch expenses of Opana® ER and Opana®.

Research and Development Expenses.Research and development expenses for the year ended December 31, 2008
decreased by 20% to $110.2 million from $138.3 million in the comparable 2007 period. Research and development expense reflects the Companys ongoing commitment to clinical research as well as the impact of the Companys external
collaborations. The reduction in expense for the year ended December 31, 2008 when compared to the same period in 2007 is primarily attributable to a reduction in upfront and milestone payments from $34.9 million in 2007 to $8.9 million in
2008.

Impairment of Other Intangible Assets.During the year ended December 31, 2008,
as a result of our decision to discontinue the development of RapinylTMwe recorded an impairment charge in the amount of $8.1 million to write-off the remaining balance of our RapinylTMintangible asset. During the year ended December 31, 2007, as a result of the continued lack of commercial
success of Synera, we recorded an impairment charge of $0.9 million related to the remaining unamortized portion of our ZARS intangible asset.

Purchased In-Process Research and Development. Purchased in-process research and development in 2008 reflects the reversal of a contingent payment liability originally recorded upon the
acquisition of RxKinetix in 2006.



64



---

##### Table of Contents

Interest Expense (Income), Net

The components of interest expense (income), net for the years ended December 31 are as follows (in thousands):



|                               |  |      |         |   |      |   |         |  
|------------------------------ |  | ---- | ------- | - | ---- | - | ------- | -
|                               |  | 2008 |         |   | 2007 |  
|Interest expense               |  | $    | 18,726  |   |      | $ | 117     |  
|Interest income                |  |      | (24,833 | ) |      |   | (35,543 | )
|                               |  |      |         |   |      |   |         |  
|Interest expense (income), net |  | $    | (6,107  | ) |      | $ | (35,426 | )
|                               |  |      |         |   |      |   |         |  

Interest expense for the year ended December 31, 2008 was $18.7 million compared
with $0.1 million for the comparable period in 2007. This increase is primarily attributable to the interest expense on our 1.75% Convertible Senior Subordinated Notes issued in April 2008 and the recognition of interest expense during 2008
representing accretion of our minimum royalty guarantee payable to Novartis AG, related to Voltaren® Gel. During
2008, as a result of uncertainties in the global credit markets, the auction-rate securities market became illiquid and yields on these securities have decreased significantly from the yields experienced in 2007. In March 2008, the Board of
Directors approved an amended investment policy which seeks to preserve the value of capital, consistent with maximizing return on the Companys investment, while maintaining adequate liquidity. As a result, yields on our interest-bearing
accounts have generally been lower than yields earned on the same or similar investments during the comparable periods of 2007.

Other
(Income) Expense, net

The components of other (income) expense, net at December 31 are as follows (in thousands):



|                                                           |  |      |         |   |      |   |      |  
|---------------------------------------------------------- |  | ---- | ------- | - | ---- | - | ---- | -
|                                                           |  | 2008 |         |   | 2007 |  
|Other-than-temporary impairment of auction-rate securities |  | $    | 26,417  |   |      | $ |     |  
|Unrealized (gain) loss on trading securities               |  |      | 4,225   |   |      |   |     |  
|Loss (gain) on Auction-Rate Securities Rights              |  |      | (27,321 | ) |      |   |     |  
|Other                                                      |  |      | (1,568  | ) |      |   | (598 | )
|                                                           |  |      |         |   |      |   |      |  
|Other (income) expense, net                                |  | $    | 1,753   |   |      | $ | (598 | )
|                                                           |  |      |         |   |      |   |      |  

Other (income) expense, net for the year ended December 31, 2008, was $1.8 million compared with $(0.6)
million for the comparable period in 2007. During the fourth quarter of 2008, upon accepting the UBS Offer of auction-rate securities rights, the Company made a one-time election to transfer Eligible Auction-rate Securities out of the
available-for-sale category and into the trading category. As such, the change in the fair value of these securities is now charged to earnings. In addition, the Company made a one-time election to transfer these securities out of the
available-for-sale category and into the trading category. As such, the decline in the fair value of these securities subsequent to the transfer, which amounted to $30.6 million, has been charged to earnings and included in other (income) expense,
net. The impairment charge and additional declines in fair value were partially offset by a $27.3 million gain recorded in the fourth quarter of 2008 resulting from the recognition of a freestanding financial instrument which arose from our
auction-rate securities rights from UBS.

Income Tax

Income tax expense for the year ended December 31, 2008 increased by 8.5% to $136.5 million from $125.8 million in the comparable 2007
period. The increase in income tax expense is primarily a result of the increase in income before income tax for the year ended December 31, 2008 compared to the comparable period in 2007. The impact of the increase in income before income tax
is partially offset by a reduction in our effective tax rate. Our effective tax rate for the year ended December 31, 2008 decreased to 34.8% from 35.6% in the comparable period of 2007. The decrease in the effective income tax rate is primarily
the result of a reversal of certain of the Companys unrecognized tax benefits, net of deferred federal and state benefits, for the settlement of various tax



65



---

##### Table of Contents

issues and adjustments for prior year tax provision and return differences, which are partially offset by an increase in the effective tax rate due to lower tax-exempt interest.

LIQUIDITY AND CAPITAL RESOURCES

Our principal source of liquidity is cash generated from operations. Our principal liquidity requirements are for working capital for operations, acquisitions, licenses, milestone payments, capital expenditures, and debt service payments.
The Company continues to maintain sufficient levels of working capital, which was approximately $808.4 million at December 31, 2009. Historically, we have generated positive cash flow from operating activities and have had access to broad
financial markets that provide liquidity. Cash, cash equivalents and current marketable securities were approximately $733.7 million at December 31, 2009 compared to $782.2 million and $663.7 million at December 31, 2008 and 2007,
respectively. Cash and cash equivalents at December 31, 2009, December 31, 2008, and December 31, 2007 primarily consisted of bank deposits, time deposits and money market funds.

In 2010, we expect cash generated from operations together with our cash, cash equivalents and current marketable
securities to be sufficient to cover cash needs for working capital and general corporate purposes, the payment of contractual obligations, including scheduled interest payments on our Convertible Notes, principal and interest payments on the
remaining $57.0 million Indevus debt assumed by the Company, and any regulatory and/or sales milestones that may become due. We expect that sales of our currently marketed products to allow us to continue to generate positive cash flow from
operations. In February 2009, concurrent with the completion of the Indevus transaction, we placed $175 million in escrow until December 15, 2009 to fund the potential AveedTMContingent Cash Consideration Agreement. Since we did not obtain FDA Approval by December 15, 2009, the $175
million was returned to us at that time.

Beyond 2010, we expect cash generated from operations together with our cash, cash
equivalents and marketable securities to continue to be sufficient to cover cash needs for working capital and general corporate purposes, acquisition of other businesses, including the potential payments of approximately $267 million in
contingent cash consideration payments related to our acquisition of Indevus, products, product rights, or technologies, the payment of contractual obligations, including scheduled interest payments on our convertible notes, principal and interest
payments on the remaining $57.0 million of Indevus debt assumed by the Company, certain minimum royalties due to Novartis and the regulatory or sales milestones that may become due, and/or the purchase, redemption or retirement of our convertible
notes, including a principal payment of $379.5 million at maturity in 2015. We expect that sales of our currently marketed products will allow us to continue to generate positive cash flow from operations. At this time, we cannot accurately predict
the effect of certain developments on the rate of sales growth, such as the degree of market acceptance, patent protection and exclusivity of our products, the impact of competition, the effectiveness of our sales and marketing efforts and the
outcome of our current efforts to develop, receive approval for and successfully launch our near-term product candidates. If any of the above adversely affects our future cash flows, we may need to obtain additional funding for future strategic
transactions, to repay our outstanding indebtedness, or for our future operational needs, and we cannot be certain that funding will be available on terms acceptable to us, or at all.

On October 16, 2009, we established a $300 million, three-year senior secured revolving credit facility (the Credit Facility) with JP
Morgan Chase Bank, Barclays Capital and certain other lenders. The Credit Facility will be available for letters of credit, working capital and general corporate purposes. The Credit Facility also permits up to $100 million of additional
revolving or term loan commitments from one or more of the existing lenders or other lenders.

The obligations of the Company
under the Credit Facility are guaranteed by certain of the Companys domestic subsidiaries and are secured by substantially all of the assets of the Company. The Credit Facility contains certain usual and customary covenants, including, but not
limited to covenants to maintain a maximum leverage ratio and minimum interest coverage ratio as well as limitations on capital expenditures, asset sales, mergers and acquisitions, indebtedness, liens, dividends, investments and transactions with
the Companys affiliates. Borrowings under the Credit Facility will be pegged to either (1) the London Interbank Offered Rate



66



---

##### Table of Contents

(LIBOR) or (2) an alternate base rate, plus a specified margin depending on the Companys leverage ratio from time to time. The alternate base rate is the greater of the prime rate, the
federal funds rate plus 0.5%, or an adjusted LIBOR rate plus 1%. The Company will also pay a commitment fee of between 62.5 to 100 basis points, depending on the Companys leverage ratio, payable quarterly, on the average daily unused amount of
the Credit Facility. As of the date of this filing, the Company has not drawn any amounts under the Credit Facility.

Pursuant
to our previously announced $750 million share repurchase plan during 2008. We may, from time to time, seek to repurchase our equity in open market purchases, privately-negotiated transactions, accelerated stock repurchase transactions or otherwise.
This program does not obligate Endo to acquire any particular amount of common stock. Repurchase activity, if any, will depend on factors such as levels of cash generation from operations, cash requirements for investment in the Companys
business, repayment of future debt, if any, current stock price, market conditions, the pace and scope of business development activities and other factors. The share repurchase program may be suspended, modified or discontinued at any time. As a
result of a two-year extension approved by the Board of Directors in February 2010, the share repurchase plan is set to expire in April 2012.

We may also elect to incur additional debt or issue equity or convertible securities to finance ongoing operations, acquisitions or to meet our other liquidity needs. Any issuances of equity securities or
convertible securities could have a dilutive effect on the ownership interest of our current shareholders and may adversely impact earnings per share in future periods. An acquisition may be accretive or dilutive and by its nature, involve numerous
risks and uncertainties.

Marketable Securities.Beginning in 2008 and continuing into 2009, the securities and
credit markets have been experiencing severe volatility and disturbance, increasing risk with respect to certain of our financial assets. At December 31, 2009, $232.6 million of our marketable securities portfolio was invested primarily in
auction-rate debt securities with ratings ranging from AAA to Baa3. Despite recent downgrades in certain of our auction-rate securities, the Company believes that our exposure to loss is mitigated as a result of the auction-rate securities rights
agreement with UBS (described in more detail below) which management views as an economic hedge against potential credit risk losses. During 2008, the Board of Directors approved an amended investment policy which seeks to preserve the value of
capital, consistent with maximizing return on the Companys investment, while maintaining adequate liquidity and security. The amended investment policy specifically prohibits the investment in auction-rate securities as well as the investment
in any security that is below investment grade. However, such restrictions were implemented on a prospective basis and did not impact the Companys ability to continue to hold the auction-rate securities it was invested in when the amended
investment policy was adopted.

The underlying assets of our auction-rate securities are student loans. Student loans are
insured by either the Federal Family Education Loan Program, or FFELP, or a combination of FFELP and other monoline insurers such as Ambac Assurance Corp., or AMBAC, and MBIA Insurance Corp, or MBIA. As of February 19, 2010, MBIA was rated Ba3
by Moodys and BB- by Standard and Poors. AMBAC was rated Ca by Moodys and CC by Standard and Poors.

The following table sets forth the fair value of our long-term auction-rate securities by type of security and underlying credit rating as of December 31, 2009 (in thousands):



|                                                                          |  |                             |         |   |   |        |  |     |       |      |   |       |  |   |       |  |   |        
|------------------------------------------------------------------------- |  | --------------------------- | ------- | - | - | ------ |  | --- | ----- | ---- | - | ----- |  | - | ----- |  | - | -------
|                                                                          |  | Underlying Credit Rating(1)
|                                                                          |  | AAA                         |         | A |   | B2     |  | Ba2 |       | Baa3 |   | Total
|Underlying security:                                                      |  |                             |         |   |   |        |  |     |       |      |   |       |  |   |       |  |   |        
|Student loans                                                             |  | $                           | 130,861 |   | $ | 51,781 |  | $   | 9,934 |      | $ | 7,201 |  | $ | 7,557 |  | $ | 207,334
|                                                                          |  |                             |         |   |   |        |  |     |       |      |   |       |  |   |       |  |   |        
|Total auction-rate securities included in long-term marketable securities |  | $                           | 130,861 |   | $ | 51,781 |  | $   | 9,934 |      | $ | 7,201 |  | $ | 7,557 |  | $ | 207,334
|                                                                          |  |                             |         |   |   |        |  |     |       |      |   |       |  |   |       |  |   |        



|(1) | Our auction-rate securities maintain split ratings. For purposes of this table, securities are categorized according to their lowest rating.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------



67



---

##### Table of Contents

During the year ended December 31, 2009, we sold $23.8 million of auction-rate
securities at par value. During the year ended December 31, 2008, we sold $113.8 million of original par value variable-rate demand obligations and $313.7 million of auction-rate securities at par value and $5.0 million of municipal bonds at
par value. Given the inactivity in the auction-rate securities market, the Company cannot predict when future auctions related to our existing auction-rate securities portfolio will be successful. However, we do not employ an asset management
strategy or tax planning strategy that would require us to sell any of our existing securities at a loss. Furthermore, there have been no adverse changes in our business or industry that could require us to sell the securities at a loss in order to
meet working capital requirements.

In October 2008, UBS AG (referred to as UBS) made an offer (referred to as the UBS Offer)
of auction-rate securities rights (referred to as the Rights) to the Company and other clients of UBS Securities LLC and UBS Financial Services Inc. (collectively referred to as the UBS Entities), pursuant to which the Company is entitled to sell to
UBS all auction-rate securities held by the Company as of February 13, 2008 in a UBS account (referred to as the Eligible Auction-Rate Securities). The Rights permit the Company to require UBS to purchase the Eligible Auction-Rate Securities
for a price equal to original par value plus any accrued but unpaid dividends or interest beginning on June 30, 2010 and ending on July 2, 2012 (referred to as the Expiration Date). As of December 31, 2009, we had Eligible
Auction-Rate Securities with original par value of $230.3 million, representing 92% of our total auction-rate securities portfolio at par. The remaining eight percent (8%), or $18.8 million at par, of our auction-rate securities portfolio are not
held in a UBS account and therefore are not subject to the UBS Offer.

On November 10, 2008, the Company accepted the UBS
Offer. As a result, the Company granted to the UBS Entities, the sole discretion and right to sell or otherwise dispose of, and/or enter orders in the auction process with respect to the Eligible Auction-Rate Securities on the Companys behalf
until the Expiration Date, without prior notification, so long as the Company receives a payment of par value plus any accrued but unpaid dividends or interest upon any sale or disposition.

In addition, as part of the UBS Offer, Endo is eligible for no net cost loans, should we desire to borrow money prior to the
commencement of the exercise period for the Rights. Under the terms of the UBS Offer, Endo may be eligible for no net cost loans for an amount up to 75% of the market value of the Eligible Auction-Rate Securities at the time of the
loan. The loans will become fully payable as soon as UBS receives the proceeds from a purchase of the Eligible Auction-Rate Securities. Our Rights pursuant to the UBS Offer, including the no net cost loans are not secured by UBS. As
a result, in the event UBS becomes insolvent, secured creditors of UBS may be able to attach their secured interests to our no net cost loans. The Company is currently considering its options with respect to the loans.

As of December 31, 2009, the yields on our long-term auction-rate securities ranged from 0.42% to 0.88%. These yields represent the
predetermined maximum reset rates that occur upon auction failures according to the specific terms within each securitys prospectus. As of December 31, 2009, the weighted average yield for our long-term auction-rate securities
was 0.73%. Total interest income recognized on our auction-rate securities and variable rate demand obligations during the year ended December 31, 2009, 2008 and 2007 was $2.4 million, $15.5 million, and $11.6 million, respectively.

Working Capital.Working capital increased to $808.4 million as of December 31, 2009 from $797.2 million as of
December 31, 2008. The components of our working capital for the years ended December 31, are below (in thousands):



|                                |  |      |           |   |      |   |           |      |  |   |           |  
|------------------------------- |  | ---- | --------- | - | ---- | - | --------- | ---- |  | - | --------- | -
|                                |  | 2009 |           |   | 2008 |   |           | 2007 | 
|Total current assets            |  | $    | 1,280,581 |   |      | $ | 1,183,694 |      |  | $ | 1,065,447 |  
|Less: Total current liabilities |  |      | (472,180  | ) |      |   | (386,473  | )    |  |   | (396,958  | )
|                                |  |      |           |   |      |   |           |      |  |   |           |  
|Working capital                 |  | $    | 808,401   |   |      | $ | 797,221   |      |  | $ | 668,489   |  
|                                |  |      |           |   |      |   |           |      |  |   |           |  



68



---

##### Table of Contents

Working capital increased slightly from 2008 to 2009 primarily as a result of our first
quarter acquisition of Indevus, including the increase in accounts receivable associated with the new Indevus products as well as our deferred tax assets associated with the income tax loss carryforwards expected to be utilized in 2010 and the
inclusion of short-term marketable securities and auction-rate securities rights that were classified as long-term assets at December 31, 2008. These amounts were partially offset by the payment of the initial upfront cash consideration for the
Indevus transaction, net of cash acquired, of $250 million.

The following table summarizes our statement of cash flows and
liquidity (dollars in thousands):



|                                                     |  |      |          |   |      |   |          |      |  |   |          |  
|---------------------------------------------------- |  | ---- | -------- | - | ---- | - | -------- | ---- |  | - | -------- | -
|                                                     |  | 2009 |          |   | 2008 |   |          | 2007 | 
|Net cash flow provided by (used in):                 |  |      |          |   |      |   |          |      |  |   |          |  
|Operating activities                                 |  | $    | 295,406  |   |      | $ | 355,627  |      |  | $ | 365,742  |  
|Investing activities                                 |  |      | (245,509 | ) |      |   | 179,807  |      |  |   | (614,528 | )
|Financing activities                                 |  |      | (117,128 | ) |      |   | (110,066 | )    |  |   | (28,974  | )
|                                                     |  |      |          |   |      |   |          |      |  |   |          |  
|Net (decrease) increase in cash and cash equivalents |  |      | (67,231  | ) |      |   | 425,368  |      |  |   | (277,760 | )
|Cash and cash equivalents, beginning of period       |  |      | 775,693  |   |      |   | 350,325  |      |  |   | 628,085  |  
|                                                     |  |      |          |   |      |   |          |      |  |   |          |  
|Cash and cash equivalents, end of period             |  | $    | 708,462  |   |      | $ | 775,693  |      |  | $ | 350,325  |  
|                                                     |  |      |          |   |      |   |          |      |  |   |          |  
|Current ratio                                        |  |      | 2.7:1    |   |      |   | 3.1:1    |      |  |   | 2.7:1    |  
|Days sales outstanding                               |  |      | 43       |   |      |   | 40       |      |  |   | 45       |  

Net Cash
Provided by Operating Activities.Net cash provided by operating activities were $295.4 million for the year ended December 31, 2009, a 17% decrease from the comparable 2008 period. Significant components of our operating cash flows for
the years ended December 31, are as follows (in thousands):



|                                                                     |  |      |          |   |      |   |         |      |  |   |         |  
|-------------------------------------------------------------------- |  | ---- | -------- | - | ---- | - | ------- | ---- |  | - | ------- | -
|                                                                     |  | 2009 |          |   | 2008 |   |         | 2007 | 
|Cash Flow Data-Operating Activities:                                 |  |      |          |   |      |   |         |      |  |   |         |  
|Net income                                                           |  | $    | 266,336  |   |      | $ | 255,336 |      |  | $ | 227,440 |  
|Depreciation and amortization                                        |  |      | 80,381   |   |      |   | 46,445  |      |  |   | 17,405  |  
|Stock-based compensation                                             |  |      | 19,593   |   |      |   | 16,934  |      |  |   | 13,928  |  
|Change in fair value of acquisition-related contingent consideration |  |      | (128,090 | ) |      |   |        |      |  |   |        |  
|Impairment of long-lived assets                                      |  |      | 69,000   |   |      |   | 12,680  |      |  |   | 3,164   |  
|Loss (gain) on auction-rate securities rights                        |  |      | 11,662   |   |      |   | (27,321 | )    |  |   |        |  
|Unrealized (gain) loss on trading securities                         |  |      | (15,222  | ) |      |   | 4,225   |      |  |   |        |  
|Other-than-temporary impairment of available-for-sale securities     |  |      |         |   |      |   | 26,417  |      |  |   |        |  
|Purchased in-process research and development                        |  |      |         |   |      |   | (530    | )    |  |   |        |  
|Changes in assets and liabilities which provided cash:               |  |      | 12,428   |   |      |   | 4,198   |      |  |   | 107,038 |  
|Other, net                                                           |  |      | (20,682  | ) |      |   | 17,243  |      |  |   | (3,233  | )
|                                                                     |  |      |          |   |      |   |         |      |  |   |         |  
|Net cash provided by operating activities                            |  | $    | 295,406  |   |      | $ | 355,627 |      |  | $ | 365,742 |  
|                                                                     |  |      |          |   |      |   |         |      |  |   |         |  

For the year ended December 31, 2009, significant changes in net cash provided by operating activities
from the year ended December 31, 2008 was primarily driven by a $66.0 million decrease in the cash flow impact of accounts receivable due to a combination of increased revenues and an increase to our average days sales outstanding
reflecting the standard payments terms of our UEO products.

For the year ended December 31, 2008, significant changes in
net cash provided by operating activities from the year ended December 31, 2007 included the following: (1) a $27.0 million decrease in the cash flow impact of accounts receivable as a result of the significant collections during the year
ended December 31, 2007 on 2006 sales of our generic oxycodone ER product which we ceased selling as of December 31, 2006; (2) a $32.4 million increase in income tax payments during the twelve months ended December 31, 2008
compared to the same



69



---

##### Table of Contents

period in 2007 and (3) a $52.8 million net reduction in the favorable cash flow impact of accounts payable and accrued expenses due to the timing of certain cash payments, most notably
milestone payments totaling $27.9 million, all of which were accrued as of December 31, 2007 and paid during 2008.

Net Cash Provided by (Used in) Investing Activities.Net cash used in investing activities was $245.5 million for the year ended December 31, 2009 compared to $179.8 million provided by and $614.5 million used in for the
years ended December 31, 2008 and 2007, respectively.

For the year ended December 31, 2009, the Company completed
its acquisition of Indevus and paid cash consideration of $250.4 million, net of cash acquired. In addition, the Company sold $23.8 million in auction-rate securities and purchased $12.4 million of capital assets, including property and equipment
and licensing rights.

During the year ended December 31, 2008, we collected $3.3 million in
principal payments from Vernalis on our note receivable and $447.1 million from the sale of available-for-sale securities. These cash inflows were partially offset by the purchase of $134.2 million of available-for-sale securities, an $85 million
upfront payment to Novartis to obtain the exclusive U.S. marketing rights for the prescription medicine Voltaren® Gel, a $20 million investment in a privately-held company that is focused on the development of an innovative treatment for certain types of cancer, and $17.4 million
for capital expenditures. Also during 2008, the first dosage of EN 3285 was administered to a patient enrolled in a clinical phase III trial. Accordingly, in March 2008, we paid $15 million in additional contingent purchase price consideration to
the former shareholders of RxKinetix.

During the year ended December 31, 2007, purchases of marketable securities
classified as available-for-sale, totaled $806.4 million, and sales of marketable securities classified as available-for-sale totaled $214.9 million. Also, during the year ended December 31, 2007, the Company paid $20.0 million for capital
expenditures, primarily related to an increased investment in our information technology infrastructure. We also invested an additional $5.3 million in Life Sciences Opportunities Fund (Institutional) II, L.P.( the Fund). In addition, during 2007,
we received $2.2 million from the Fund, $2.1 million of which accounted for as a return of capital.

Net Cash Used in
Financing Activities.Net cash used in financing activities was $117.1 million for the year ended December 31, 2009 compared to $110.1 million and $29.0 million for the years ended December 31, 2008 and 2007, respectively.

For the year ended December 31, 2009, as a result of our acquisition of Indevus, the Company assumed Indevuss
6.25% Convertible Senior Notes due July 2009 (the Notes) as well as 16% non-convertible, non-recourse, secured promissory notes due 2024 (Non-recourse notes). In 2009, the Company paid approximately $72 million in outstanding principal to satisfy
the Notes in their entirety and purchased $48 million of the outstanding non-recourse notes pursuant to a tender offer.

For the year ended December 31, 2008, in connection with the April 2008 issuance of our 1.75% Convertible Senior Subordinated Notes, we received proceeds of approximately $370.7 million, net of the original purchasers discount as
well as certain other costs of the offering. Concurrently with the issuance of the Convertible Notes, we entered into a privately-negotiated convertible note hedge transaction with affiliates of the initial purchasers. The cost of the call option
was approximately $107.6 million. In addition, we sold warrants to affiliates of certain of the initial purchasers whereby they have the option to purchase up to approximately 13.0 million shares of our common stock at an initial strike price
of $40.00 per share. We received approximately $50.4 million in cash proceeds from the sale of these warrants. In addition to entering into the convertible note hedge transaction and the warrant transaction, we entered into a privately-negotiated
accelerated share repurchase agreement with the same counterparty, as part of our broader share repurchase program. We used approximately $57 million representing a portion of the net proceeds from the Convertible Notes offering to pay the cost of
the convertible note hedge transaction, taking into account the proceeds from the warrant transaction, and used the balance of the net proceeds or approximately $314 million, together with approximately $11 million of cash on hand, to repurchase a
variable number of shares of our common stock pursuant to the accelerated share repurchase agreement entered into as part



70



---

##### Table of Contents

of our broader share repurchase program. Pursuant to the accelerated share repurchase agreement, the counterparty delivered 11.9 million shares of our common stock to the Company on the day
that the note offering closed, April 15, 2008. On August 14, 2008, Endo received approximately 1.4 million additional shares of our common stock based on the volume weighted average price of our common stock during a specified
averaging period set forth by the accelerated share repurchase agreement. In addition to the accelerated share repurchase, beginning in April 2008 we made open market purchases of our common stock as part of our broader share repurchase program. As
of December 31, 2008, we purchased approximately 4.5 million shares of our common stock on the open market for a total purchase price of approximately $99.8 million.

Net cash used in financing activities of $29.0 million for the year ended December 31, 2007, was primarily attributable to a $38.5
million payment to Endo Pharma LLC pursuant to the tax sharing agreement in 2007.

Research and Development.
Over the past few years, we have incurred significant expenditures relating to the conduct of clinical studies to develop new pharmaceutical products and exploring the value of our existing products in treating disorders beyond those currently
approved in their respective labels. We may seek to mitigate the risk in, and expense of, our research and development programs by entering into collaborative arrangements with third parties. However, we intend to retain a portion of the commercial
rights to these programs and, as a result, we expect to spend significant funds on our share of the cost of these programs, including the costs of research, pre-clinical development, clinical research and manufacturing.

We expect to continue to incur significant levels of research and development expenditures as we focus on the development and advancement of
our product pipeline. There can be no assurance that results of any ongoing or future pre-clinical or clinical trials related to these projects will be successful, that additional trials will not be required, that any drug or product under
development will receive FDA approval in a timely manner or at all, or that such drug or product could be successfully manufactured in accordance with U.S. current Good Manufacturing Practices, or successfully marketed in a timely manner, or at all,
or that we will have sufficient funds to develop or commercialize any of our products.

Manufacturing, Supply and Other
Service Agreements.We contract with various third party manufacturers and suppliers to provide us with raw materials used in our products and finished goods. Our most significant agreements are with Novartis Consumer
Health, Inc., Novartis AG, Teikoku Seiyaku Co., Ltd., Mallinckrodt Inc., Almac Pharma Services, Sharp Corporation, and Ventiv Commercial Services, LLC. If for any reason we are unable to obtain sufficient quantities of any of the finished goods or
raw materials or components required for our products, it could have a material adverse effect on our business, financial condition, results of operations and cash flows. For a complete description of commitments under manufacturing, supply and
other service agreements, see Note 14 of the Consolidated Financial Statements included in Part IV, Item 15 of this Annual Report on Form 10-K.

License and Collaboration Agreements.We have agreed to certain contingent payments in certain of our license, collaboration and other agreements. Payments under these agreements generally
become due and payable only upon the achievement of certain developmental, regulatory, commercial and/or other milestones. Due to the fact that it is uncertain if and when these milestones will be achieved, such contingencies have not been recorded
in our Consolidated Balance Sheets and, are not reflected in the expected cash requirements for Contractual Obligations table below. In addition, under certain arrangements, we may be required to make royalty payments based on a percentage of future
sales of the products in the event regulatory approval for marketing is obtained. From a business perspective, we view these payments favorably as they signify that the products are moving successfully through the development phase toward
commercialization. For a complete description of our contingent payments involving our acquisitions, license and collaboration agreements, see Note 6 and Note 14 of the Consolidated Financial Statements included in Part IV, Item 15 of this
Annual Report on Form 10-K.

Acquisitions. As part of our business strategy, we plan to consider and, as
appropriate, make acquisitions of other businesses, products, product rights or technologies. Our cash reserves and other liquid assets may be inadequate to consummate such acquisitions and it may be necessary for us to issue stock or raise
substantial



71



---

##### Table of Contents

additional funds in the future to complete future transactions. In addition, as a result of our acquisition efforts, we are likely to experience significant charges to earnings for merger and
related expenses (whether or not our efforts are successful) that may include transaction costs, closure costs or costs of restructuring activities.

Indevus Acquisition. On February 23, 2009 (referred to as the Acquisition Date), the Company completed its initial tender offer (referred to as the Offer) for all outstanding shares of
common stock, par value $0.001 per share (referred to as the Indevus Shares), of Indevus, a Delaware corporation. On that day, the Company accepted for payment in accordance with the terms of the Offer, approximately 60.3 million Indevus Shares
representing approximately 76% of the total outstanding Indevus Shares. Through purchases in subsequent offering periods, the exercise of a top-up option and a subsequent merger (referred to as the Merger), the Company completed its acquisition of
Indevus on March 23, 2009, at which time Indevus became a wholly-owned subsidiary of the Company. The Indevus Shares were purchased at a price of $4.50 per Indevus Share, net to the seller in cash, plus contractual rights to receive up to an
additional $3.00 per Indevus Share in contingent cash consideration payments (referred to as the Offer Price), pursuant to the terms of the Agreement and Plan of Merger, dated as of January 5, 2009. Accordingly, the Company paid approximately
$368 million in aggregate initial cash consideration for the Indevus Shares and entered into the AveedTMContingent Cash Consideration Agreement and the Octreotide Contingent Cash Consideration Agreement (each as defined in the Merger Agreement), providing for the payment of up to an additional $3.00 per
Indevus Share in contingent cash consideration payments, in accordance with the terms of the Offer.

The
total cost to acquire all outstanding Indevus Shares pursuant to the Offer and the Merger could be up to an additional approximately $267 million, if Endo is obligated to pay the maximum amounts under the AveedTMContingent Cash Consideration Agreement and the Octreotide
Contingent Cash Consideration Agreement. The fair value of those potential obligations is $58.5 million at December 31, 2009.

Indevus was a specialty pharmaceutical company engaged in the acquisition, development, and commercialization of products to treat conditions in urology, endocrinology and oncology. Following the completion of the Merger, Indevus was
renamed Endo Pharmaceuticals Solutions Inc.

Approved products include the following:



| |  |  | Sanctura®
(trospium chloride) was launched in August 2004. Sanctura® is indicated for the treatment of overactive bladder
(OAB) with symptoms of urge urinary incontinence, urgency and urinary frequency. Sanctura® is currently promoted
in the U.S. by Allergan Inc.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Sanctura XR®
(trospium chloride extended release capsules) is a 60 mg, once-daily formulation of Sanctura®, the only approved
quaternary amine compound clinically proven to effectively treat OAB symptoms in as early as one week, with a low incidence of side effects. Sanctura XR® is currently promoted in the U.S. by Allergan Inc. and by Madaus AG in Europe.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Supprelin® LA
(histrelin acetate) was launched in June 2007. Supprelin® LA is a 12-month hydrogel implant for treating central
precocious puberty (CPP) or the early onset of puberty in children. Supprelin® LA utilizes our patented
Hydron® Polymer Technology, designed to provide the continuous 12-month administration of a controlled dose of
histrelin, a GnRH agonist.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Vantas®
(histrelin) was launched in the U.S. in November 2004. Vantas® is a soft and flexible 12-month hydrogel implant
currently marketed in the U.S. that provides histrelin, a luteinizing hormone releasing hormone (LHRH) agonist, for the palliative treatment of advanced prostate cancer. The product utilizes our patented Hydron® Polymer Technology that allows for a controlled delivery of medicine over a 12-month period. In November 2005,
Vantas® was approved in Denmark, and in March 2006, received approval for marketing in Canada from Health
Canada. Regulatory approval was granted in May 2007 in Germany, Ireland, Italy, Spain and the United Kingdom. As of August 2007, Vantas® was approved in Thailand, Singapore, and Malaysia and approval is pending in Taiwan, Korea, Hong Kong and China. Additionally, Vantas® received approval in Argentina in January 2007 and is currently being marketed in that country.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



72



---

##### Table of Contents

| |  |  | Delatestryl®
(testosterone enanthate) is a marketed injectable testosterone preparation for the treatment of male hypogonadism. Delatestryl® provides testosterone enanthate, a derivative of the primary endogenous androgen testosterone, for intramuscular injection.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Hydron®
Implant is a subcutaneous, retrievable, non-biodegradable, hydrogel reservoir drug delivery device. The Hydron®
Implant is designed to provide sustained release of a broad spectrum of drugs continuously, at constant, predetermined rates. The Hydron® Implant is the only soft, flexible, reservoir-based drug delivery system available for parenteral administration. The hydrogel polymer compositions possess flexible,
tissue-like characteristics providing excellent biocompatibility and patient comfort. This technology serves as the basis for two of our currently marketed products including Vantas® and Supprelin® LA.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Valstar®
(valrubicin) is a sterile solution of valrubicin for intravesical instillation and is the only product approved by the FDA for therapy of bacillus Calmette-Guerin (BCG)-refractory carcinoma in situ(CIS) of the bladder. Valstar®, originally approved by the FDA in 1998, was withdrawn from the market due to a manufacturing problem involving
impurity issues in the original formulation and was placed on the FDA Drug Shortages List. In April 2007, the Company submitted a supplemental New Drug Application (sNDA) to the FDA seeking approval to reintroduce Valstar® and in February 2009 obtained FDA approval of its sNDA for Valstar®. In September 2009, we launched Valstar® for the treatment of patients with BCG-refractory CIS of the bladder. We continue to work closely with the manufacturer to build quantities of the product to support
our newly launched product.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Primary development products include the following:



| |  |  | AveedTM(testosterone undecanoate) is expected to be the first long-acting injectable testosterone preparation available in
the U.S. for the treatment of male hypogonadism in the growing market for testosterone replacement therapies. AveedTMhad historically been referred to as Nebido®. On May 6, 2009, we received notice from the FDA that Nebido® was unacceptable as a proprietary name for testosterone undecanoate. In August 2009, we received approval from FDA to use the name AveedTM. The Company acquired U.S. rights to AveedTMfrom Schering AG, Germany, in July 2005. In June 2008, we received
an approvable letter from the FDA indicating that the NDA may be approved if the Company is able to adequately respond to certain clinical deficiencies related to the product. In September 2008, agreement was reached with the FDA with regard to the
additional data and risk management strategy. In March 2009, the FDA accepted for review the complete response submission to the new drug application for AveedTMintramuscular injection. On December 2, 2009, we received a complete response letter from the FDA regarding AveedTMin response to our March 2009 complete response
submission. In the complete response letter, the FDA has requested information from Endo to address the agencys concerns regarding very rare but serious adverse events, including post-injection anaphylactic reaction and pulmonary oil
microembolism. The letter also specified that the proposed REMS is not sufficient. The Company is continuing to evaluate how best to address the concerns of the FDA and intends to have future dialogue with the agency regarding a possible regulatory
pathway. The outcome of future communications with the FDA could have a material impact on (1) managements assessment of the overall probability of approval, (2) the timing of such approval, (3) the targeted indication or
patient population and (4) the likelihood of additional clinical trials.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Octreotide implant, currently in Phase III clinical trials for the treatment of acromegaly, utilizes our patented Hydron® Polymer Technology to deliver six months of octreotide, a long-acting octapeptide that mimics the natural hormone
somatostatin to block production of growth hormone (GH). Octreotide implant is also approved to treat symptoms associated with metastatic carcinoid tumors and vasoactive intestinal peptide secreting adenomas, which are gastrointestinal tumors. The
octreotide implant is also currently in Phase II trials for the treatment of carcinoid syndrome.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



73



---

##### Table of Contents

The table below provides estimates as to the timing associated with completion of
development for the remaining primary development products.



|                   |  |                                        |  |                  |  |                             
|------------------ |  | -------------------------------------- |  | ---------------- |  | ----------------------------
|Product            |  | Indication                             |  | DevelopmentPhase |  | AnticipatedYear ofCompletion
|AveedTM            |  | Hypogonadism (Testosterone Deficiency) |  | NDA filed        |  | 2011  2013                 
|Octreotide implant |  | Acromegaly                             |  | Phase III        |  | 2012                        
|Octreotide implant |  | Carcinoid Syndrome                     |  | Phase II         |  | 2013                        

The anticipated year of
completion shown in the above table represents our current best estimate as to the year in which the Company anticipates filing an NDA with the FDA. This estimate assumes successful and timely completion of all clinical trials in preparation of an
NDA filing. However, these anticipated completion dates are subject to significant change, particularly for those products not yet in Phase III clinical development due to uncertainty of the number, size, and duration of the trials which may be
required to complete development. Once an NDA is filed with the FDA, there can be no assurance that the FDA will approve the NDA to permit the Company to market and sell the relevant product.

Management believes the Companys acquisition of Indevus is particularly significant because it reflects our commitment to expand our
business beyond pain management into complementary medical areas where we believe we can be innovative and competitive. The combined company markets products through five field sales forces and has the capability to develop innovative new therapies
using a novel drug delivery technology.

The operating results of Indevus from February 23, 2009 to December 31,
2009 are included in the accompanying Consolidated Statements of Operations. The Consolidated Balance Sheet as of December 31, 2009 reflects the acquisition of Indevus, effective February 23, 2009, the date the Company obtained control of
Indevus. The Acquisition Date fair value of the total consideration transferred was $540.9 million, which consisted of the following (in thousands):



|                         |  |                                       |        
|------------------------ |  | ------------------------------------- | -------
|                         |  | Fair Value ofConsiderationTransferred
|Cash                     |  | $                                     | 368,034
|Contingent consideration |  |                                       | 172,860
|                         |  |                                       |        
|Total                    |  | $                                     | 540,894
|                         |  |                                       |        



74



---

##### Table of Contents

The following table summarizes the estimated fair values of the assets acquired and
liabilities assumed at the Acquisition Date (in thousands):



|                                 |  |                                         |          |   |                              |   |         |                                |  |   |          |  
|-------------------------------- |  | --------------------------------------- | -------- | - | ---------------------------- | - | ------- | ------------------------------ |  | - | -------- | -
|                                 |  | February 23, 2009(As
initiallyreported) |          |   | MeasurementPeriodAdjustments |   |         | February 23, 2009(As adjusted) | 
|Cash and cash equivalents        |  | $                                       | 117,675  |   |                              | $ |        |                                |  | $ | 117,675  |  
|Accounts receivable              |  |                                         | 13,725   |   |                              |   | 866     |                                |  |   | 14,591   |  
|Inventories                      |  |                                         | 15,808   |   |                              |   | 1,349   |                                |  |   | 17,157   |  
|Prepaid and other current assets |  |                                         | 8,327    |   |                              |   | (5      | )                              |  |   | 8,322    |  
|Property, plant and equipment    |  |                                         | 8,266    |   |                              |   | 590     |                                |  |   | 8,856    |  
|Other intangible assets          |  |                                         | 586,900  |   |                              |   | (54,000 | )                              |  |   | 532,900  |  
|Deferred tax assets              |  |                                         | 159,769  |   |                              |   | 7,980   |                                |  |   | 167,749  |  
|Other non-current assets         |  |                                         | 764      |   |                              |   | 567     |                                |  |   | 1,331    |  
|                                 |  |                                         |          |   |                              |   |         |                                |  |   |          |  
|Total identifiable assets        |  | $                                       | 911,234  |   |                              | $ | (42,653 | )                              |  | $ | 868,581  |  
|                                 |  |                                         |          |   |                              |   |         |                                |  |   |          |  
|Accounts payable                 |  | $                                       | (5,081   | ) |                              | $ | (35     | )                              |  | $ | (5,116   | )
|Accrued expenses                 |  |                                         | (27,357  | ) |                              |   | 632     |                                |  |   | (26,725  | )
|Convertible notes                |  |                                         | (71,682  | ) |                              |   | (830    | )                              |  |   | (72,512  | )
|Non-recourse notes               |  |                                         | (115,235 | ) |                              |   |        |                                |  |   | (115,235 | )
|Deferred tax liabilities         |  |                                         | (234,599 | ) |                              |   | 23,952  |                                |  |   | (210,647 | )
|Other non-current liabilities    |  |                                         | (18,199  | ) |                              |   | (708    | )                              |  |   | (18,907  | )
|                                 |  |                                         |          |   |                              |   |         |                                |  |   |          |  
|Total liabilities assumed        |  |                                         | (472,153 | ) |                              |   | 23,011  |                                |  |   | (449,142 | )
|                                 |  |                                         |          |   |                              |   |         |                                |  |   |          |  
|Net identifiable assets acquired |  | $                                       | 439,081  |   |                              | $ | (19,642 | )                              |  | $ | 419,439  |  
|Goodwill                         |  | $                                       | 102,490  |   |                              | $ | 18,965  |                                |  | $ | 121,455  |  
|                                 |  |                                         |          |   |                              |   |         |                                |  |   |          |  
|Net assets acquired              |  | $                                       | 541,571  |   |                              | $ | (677    | )                              |  | $ | 540,894  |  
|                                 |  |                                         |          |   |                              |   |         |                                |  |   |          |  

The above estimated fair values of assets acquired and liabilities assumed are based on the information that
was available as of the Acquisition Date to estimate the fair value of assets acquired and liabilities assumed. As of December 31, 2009, our measurement period adjustments are complete.

Of the $532.9 million of acquired intangible assets, $255.9 million was assigned to in-process research and development. The remaining
$277.0 million has been assigned to license rights and is subject to a weighted average useful life of approximately 11 years.

The valuation of the intangible assets acquired and related amortization periods are as follows:



|                                   |  |                        |       |                              |    
|---------------------------------- |  | ---------------------- | ----- | ---------------------------- | ---
|                                   |  | Valuation(in millions) |       | AmortizationPeriod(in years)
|In Process Research & Development: |  |                        |       |                              |    
|Valstar®(1)                        |  | $                      | 88.0  |                              | n/a
|AveedTM                            |  |                        | 100.0 |                              | n/a
|Octreotide                         |  |                        | 31.0  |                              | n/a
|Pagoclone                          |  |                        | 21.0  |                              | n/a
|Pro2000                            |  |                        | 4.0   |                              | n/a
|Other                              |  |                        | 11.9  |                              | n/a
|                                   |  |                        |       |                              |    
|Total                              |  | $                      | 255.9 |                              | n/a
|                                   |  |                        |       |                              |    
|License Rights:                    |  |                        |       |                              |    
|Hydron® Polymer                    |  | $                      | 22.0  |                              | 10 
|Vantas®                            |  |                        | 36.0  |                              | 10 
|Sanctura® Franchise                |  |                        | 94.0  |                              | 12 
|Supprelin® LA                      |  |                        | 124.0 |                              | 10 
|Other                              |  |                        | 1.0   |                              | 4  
|                                   |  |                        |       |                              |    
|Total                              |  | $                      | 277.0 |                              | 11 
|                                   |  |                        |       |                              |    
|Total other intangible assets      |  | $                      | 532.9 |                              |    
|                                   |  |                        |       |                              |    



75



---

##### Table of Contents



|(1) | The FDA approved the sNDA for Valstar® subsequent to the Acquisition Date. Therefore, Valstar® was initially classified as in-process research and development and subsequently transferred to License Rights upon obtaining FDA approval.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The fair value of the in-process research and development assets and License Rights
assets, with the exception of the Hydron® Polymer Technology, were estimated using an income approach. Under
this method, an intangible assets fair value is equal to the present value of the incremental after-tax cash flows (excess earnings) attributable solely to the intangible asset over its remaining useful life. To calculate fair value, the
Company used probability-weighted cash flows discounted at rates considered appropriate given the inherent risks associated with each type of asset. The Company believes that the level and timing of cash flows appropriately reflect market
participant assumptions. Cash flows were generally assumed to extend either through or beyond the patent life of each product, depending on the circumstances particular to each product. The fair value of the Hydron® Polymer Technology was estimated using an income approach, specifically known as the relief from royalty method. The
relief from royalty method is based on a hypothetical royalty stream that would be received if the Company were to out-license the technology. The Hydron® Polymer Technology is currently used in the following products: Vantas®, Supprelin® LA and
octreotide. Thus, we derived the hypothetical royalty income from the projected revenues of those drugs. The fair value of the Hydron® Polymer Technology also includes an existing royalty payable by the Company to the certain third party partners based on the net sales derived from drugs that use the
Hydron® Polymer Technology. Discount rates applied to the estimated cash flows for all intangible assets
acquired ranged from 13% to 20%, depending on the current stage of development, the overall risk associated with the particular project or product and other market factors. We believe the discount rates used are consistent with those that a market
participant would use.

The $121.5 million of goodwill was assigned to our pharmaceutical products
segment, which is our only reportable segment as of December 31, 2009. The goodwill recognized is attributable primarily to the potential additional applications for the Hydron® Polymer Technology, expected corporate synergies, the assembled workforce of Indevus and other factors. None of the goodwill is expected to be deductible for income
tax purposes.

Convertible Notes due 2009. As discussed in Note 17 to the Consolidated Financial Statements in
Part IV, Item 15 of this Report, as a result of our acquisition of Indevus, the Company assumed Indevuss 6.25% Convertible Senior Notes due July 2009 (referred to as the Notes). Pursuant to the Indenture governing the Notes, within 30
days of the effective date of the Merger, holders of the Notes had the right to tender their Notes for the principal amount of the Notes plus any accrued and unpaid interest. During this 30-day period, approximately $3.6 million in aggregate
principal amount of Notes were tendered and the Company paid this amount in April 2009.

The Notes matured on July 15,
2009. Accordingly, in July 2009, the Company paid $68.3 million in outstanding principal to satisfy the Notes in their entirety.

Convertible Senior Subordinated Notes due 2015. As discussed in Note 17 to the Consolidated Financial Statements in Part IV, Item 15 of this Report, in April 2008, we issued $379.5 million in aggregate principal
amount of 1.75% Convertible Senior Subordinated Notes due April 15, 2015 (the Convertible Notes) in a private offering for resale to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended.

We received proceeds of approximately $370.7 million from the issuance, net of the initial purchasers discount and certain other
costs of the offering. Interest is payable semi-annually in arrears on each April 15 and October 15. The Convertible Notes will mature on April 15, 2015, unless earlier converted or repurchased by us.

Holders of the Convertible Notes may convert their notes based on a conversion rate of 34.2466 shares of our common stock per $1,000
principal amount of notes (the equivalent of $29.20 per share), subject to



76



---

##### Table of Contents

adjustment upon certain events, only under the following circumstances as described in the Indenture for the Convertible Notes (referred to as the Indenture): (1) during specified periods,
if the price of our common stock reaches specified thresholds; (2) if the trading price of the Convertible Notes is below a specified threshold; (3) at any time after October 15, 2014; or (4) upon the occurrence of certain
corporate transactions. We will be permitted to deliver cash, shares of Endo common stock or a combination of cash and shares, at our election, to satisfy any future conversions of the Convertible Notes. It is our current intention to settle the
principal amount of any conversion consideration in cash.

Non-recourse Notes. As discussed in Note 17 to the
Consolidated Financial Statements in Part IV, Item 15 of this Report, on August 26, 2008, Indevus closed a private placement to institutional investors of $105.0 million in aggregate principal amount of 16% non-convertible, non-recourse,
secured promissory notes due 2024 (Non-recourse Notes). The Non-recourse Notes were issued by Ledgemont Royalty Sub LLC (Royalty Sub), which was a wholly-owned subsidiary of Indevus at the time of the note issuance and subsequently became a
wholly-owned subsidiary of the Company upon our acquisition of Indevus. As of the Acquisition Date, the Company recorded these notes at their fair value of approximately $115.2 million. The Company was amortizing these notes to their face value of
$105.0 million at maturity in 2024.

In connection with the issuance of the Non-recourse Notes, Indevus
and Royalty Sub entered into a Purchase and Sale Agreement pursuant to which Indevus sold to Royalty Sub its rights to receive royalty payments from Allergan arising under the Allergan Agreement (as described in Note 6 of the Consolidated Financial
Statements in Part IV, Item 15 of this Report) for sales in the U.S. of Sanctura® and Sanctura XR® . To secure repayment of the Non-recourse Notes, Royalty Sub granted a continuing security interest to the trustee
for the benefit of the noteholders in, among other things, the royalty payments made by Allergan under the Allergan Agreement discussed above, all of its rights under the Purchase and Sale Agreement and any accounts established in accordance with
the Indenture (and all amounts from time to time credited to such accounts). The Non-recourse Notes have not been guaranteed by Indevus or the Company. Principal on the Non-recourse Notes is required to be paid in full by the final legal maturity
date of November 5, 2024, unless repaid or redeemed earlier. In the event the Non-recourse Notes are repaid or redeemed prior to November 5, 2024, the noteholders will be entitled to a redemption premium (as described below). The interest
rate applicable to the Non-recourse Notes is 16% per year and is payable quarterly in arrears and commenced on November 5, 2008.

Principal and interest on the Non-recourse Notes will be paid from the royalties from Allergan. Payments may also be made from the interest reserve account (described below) and certain other accounts
established in accordance with the Indenture. In connection with the issuance of the Non-recourse Notes, a $10.0 million interest reserve account was established to fund potential interest payment shortfalls. Approximately $1.5 million of the
interest reserve account remains and is classified as restricted cash in the Companys consolidated balance sheet as of December 31, 2009. Royalty Sub will receive directly all royalties payable to the Company until the Non-recourse Notes
have been repaid in full.

In August 2009, the Company commenced a cash tender offer for any and all outstanding Non-recourse
notes. The purpose of the tender offer was to acquire any and all Notes to reduce our consolidated interest expense. The tender offer included an early tender deadline, whereby holders of the Non-recourse notes could early tender and receive the
total early consideration of $1,000 per $1,000 principal amount of the Non-recourse notes. Holders who tendered their Non-recourse notes after such time and at or prior to the expiration of the tender offer period were eligible to receive the tender
offer consideration of $950 per $1,000 principal amount of Non-recourse notes, which was the total early consideration less the early tender payment. The tender offer expired on September 24, 2009, at 5:00 p.m., New York City time (referred to
as the Expiration Time). As of the Expiration Time, $48 million Non-recourse notes had been validly tendered and not withdrawn. The Company accepted for payment and purchased Non-recourse notes at a purchase price of $1,000 per $1,000 principal
amount, for a total amount of approximately $48 million (excluding accrued and unpaid interest up to, but not including, the payment date for the Notes, fees and other expenses in connection with the tender offer). The aggregate principal amount of
Non-recourse notes purchased represents approximately 46% of the $105 million



77



---

##### Table of Contents

aggregate principal amount of Non-recourse notes that were outstanding prior to the Expiration Time. Accordingly, the Company recorded a $4 million gain on the extinguishment of debt, net of
transaction costs. The gain was calculated as the difference between the aggregate amount paid to purchase the Non-recourse notes and their carrying amount.

If the royalty payments from Allergan and amounts in the interest reserve account are insufficient to pay all of the interest and principal, if any, due on a payment date, the shortfall will accrue
interest at the interest rate applicable to the Non-recourse Notes (16%) compounded quarterly. If any interest payment shortfall is not paid in full by the succeeding payment date, an Event of Default under the Indenture will occur, unless the
Company contributes cash to a capital account of Royalty Sub in an amount sufficient to satisfy any such shortfall. Pursuant to the Indenture, the Company has the right, but not the obligation, to contribute cash in an amount equal to the shortfall
to the capital account for distribution by the trustee to the noteholders. The Company has the right to satisfy such an interest payment shortfall no more than six times over the life of the Non-recourse Notes and no more than three consecutive
times. In the event that the Company is no longer permitted to fund the capital account to satisfy an interest payment shortfall, and the Company does not redeem the Non-recourse Notes (as described below), an Event of Default will occur and the
noteholders may accelerate the obligations of Royalty Sub under the Non-recourse Notes and exercise their remedies thereunder, including assuming all rights to future royalty payments from Allergan. Based on current expectations, it is reasonably
possible that we may exceed the maximum number of times we can fund the capital account to satisfy an interest payment shortfall as early as November 2010.

The Non-recourse Notes will be subject to redemption at the option of Royalty Sub. If the applicable redemption of the Non-recourse Notes occurs on or prior to August 5, 2010, the redemption price
will be equal to the greater of (x) the outstanding principal balance of the Non-recourse Notes being redeemed or (y) the present value, discounted at the rate on U.S. Treasury obligations with a comparable maturity to the remaining
weighted average life of the Non-recourse Notes plus 1.00%, of the principal payment amounts and interest at the rate applicable to the Non-recourse Notes on the outstanding principal balance of the Non-recourse Notes. If the applicable redemption
of the Non-recourse Notes occurs after August 5, 2010, the redemption price will be equal to the percentage of the outstanding principal balance of the Non-recourse Notes being redeemed specified below for the period in which the redemption
occurs:



|                                                      |  |                      |  
|----------------------------------------------------- |  | -------------------- | -
|Payment Dates (between indicated dates)               |  | RedemptionPercentage |  
|From November 5, 2010 to and including August 5, 2011 |  | 108                  | %
|From November 5, 2011 to and including August 5, 2012 |  | 104                  | %
|From November 5, 2012 and thereafter                  |  | 100                  | %

Legal
Proceedings.We are subject to various patent, product liability, government investigations and other legal proceedings in the ordinary course of business. Contingent accruals are recorded when we determine that a loss related to a
litigation matter is both probable and reasonably estimable. Due to the fact that legal proceedings and other contingencies are inherently unpredictable, our assessments involve significant judgments regarding future events.

For a complete description of legal proceedings, see Note 14 of the Consolidated Financial Statements included in Part IV,
Item 15 of this Annual Report on Form 10-K.



78



---

##### Table of Contents

Expected Cash Requirements for Contractual Obligations. The following table
presents our expected cash requirements for contractual obligations for each of the following years subsequent to December 31, 2009 (in thousands):



|                                                           |  |                       |         |      |   |        |  |      |        |      |   |        |  |            |        |  |   |        |  |   |        
|---------------------------------------------------------- |  | --------------------- | ------- | ---- | - | ------ |  | ---- | ------ | ---- | - | ------ |  | ---------- | ------ |  | - | ------ |  | - | -------
|                                                           |  | Payment Due by Period
|Contractual Obligations                                    |  | Total                 |         | 2010 |   | 2011   |  | 2012 |        | 2013 |   | 2014   |  | Thereafter
|Operating Lease Obligations                                |  | $                     | 34,497  |      | $ | 9,725  |  | $    | 6,245  |      | $ | 4,584  |  | $          | 4,700  |  | $ | 4,635  |  | $ | 4,608  
|Convertible Senior Subordinated Notes                      |  |                       | 379,500 |      |   |       |  |      |       |      |   |       |  |            |       |  |   |       |  |   | 379,500
|Interest payments on Convertible Senior Subordinated Notes |  |                       | 35,142  |      |   | 6,641  |  |      | 6,641  |      |   | 6,641  |  |            | 6,641  |  |   | 6,641  |  |   | 1,937  
|Non-recourse Notes                                         |  |                       | 57,000  |      |   |       |  |      |       |      |   |       |  |            |       |  |   |       |  |   | 57,000 
|Interest on Non-recourse Notes                             |  |                       | 135,280 |      |   | 9,120  |  |      | 9,120  |      |   | 9,120  |  |            | 9,120  |  |   | 9,120  |  |   | 89,680 
|Minimum Purchase Commitments to Novartis                   |  |                       | 41,000  |      |   | 20,000 |  |      | 21,000 |      |   |       |  |            |       |  |   |       |  |   |       
|Minimum Royalty Obligation Due to Hind                     |  |                       | 1,000   |      |   | 500    |  |      | 500    |      |   |       |  |            |       |  |   |       |  |   |       
|Minimum Purchase Commitments to Teikoku(1)                 |  |                       | 96,000  |      |   | 32,000 |  |      | 32,000 |      |   | 32,000 |  |            |       |  |   |       |  |   |       
|Minimum Voltaren® Royalty Obligations Due to Novartis(2)   |  |                       | 60,000  |      |   |       |  |      | 15,000 |      |   | 30,000 |  |            | 15,000 |  |   |       |  |   |       
|Minimum advertising and promotion spend(3)                 |  |                       | 10,000  |      |   | 10,000 |  |      |       |      |   |       |  |            |       |  |   |       |  |   |       
|Shire Minimum Payments(4)                                  |  |                       | 2,875   |      |   | 1,375  |  |      | 1,500  |      |   |        |  |            |        |  |   |        |  |   |        
|                                                           |  |                       |         |      |   |        |  |      |        |      |   |        |  |            |        |  |   |        |  |   |        
|Total                                                      |  | $                     | 852,294 |      | $ | 89,361 |  | $    | 92,006 |      | $ | 82,345 |  | $          | 35,461 |  | $ | 20,396 |  | $ | 532,725
|                                                           |  |                       |         |      |   |        |  |      |        |      |   |        |  |            |        |  |   |        |  |   |        



|(1) | On April 24, 2007, we amended our Supply and Manufacturing Agreement with Teikoku Seiyaku Co., Ltd. / Teikoku Pharma USA, Inc. (collectively,
Teikoku) dated as of November 23, 1998, pursuant to which Teikoku manufactures and supplies Lidoderm® (lidocaine patch 5%) (referred to as the Product) to Endo. This amendment is referred to as the Amended Agreement. Under the terms of the Amended Agreement, Endo has agreed to purchase a minimum number of Lidoderm® patches per year through 2012, representing the noncancelable portion of the Amended Agreement. The minimum purchase
requirement shall remain in effect subsequent to 2012, except that Endo has the right to terminate the Amended Agreement after 2012, if we fail to meet the annual minimum requirement. Teikoku has agreed to fix the supply price of Lidoderm® for a specified period of time after which the price will be adjusted at future dates certain based on a price index
defined in the Amended Agreement. Since future price changes are unknown, for purposes of this contractual obligations table, all amounts scheduled above represent the minimum patch quantities at the price currently existing under the Amended
Agreement. We will update the Teikoku purchase commitments upon future price changes made in accordance with the Amended Agreement.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Under the terms of the five-year Voltaren® Gel Agreement, Endo made an up-front cash payment of $85 million. Endo has agreed to pay royalties to Novartis on annual Net Sales of the Licensed Product, subject to
certain thresholds all as defined in the Voltaren® Gel Agreement. In addition, Endo has agreed to make certain
guaranteed minimum annual royalty payments beginning in the fourth year of the Voltaren® Gel Agreement, subject
to certain limitations as defined in the Voltaren® Gel Agreement. These guaranteed minimum royalties will be
creditable against royalty payments on a Voltaren® Gel Agreement year basis such that Endos obligation
with respect to each Voltaren® Gel Agreement year is to pay the greater of (i) royalties payable based on
annual net sales of the Licensed Product or (ii) the guaranteed minimum royalty for such Agreement year.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Under the terms of the five-year Voltaren® Gel Agreement, Endo has agreed to certain minimum advertising and promotional spending, subject to certain thresholds as defined in the Voltaren® Gel Agreement. Subsequent to June 30, 2010, the minimum advertising and promotional spending are to be
determined based on a percentage of net sales of the licensed product.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



79



---

##### Table of Contents

|(4) | In April 2008, Indevus entered into an agreement to terminate its manufacturing and supply agreement with Shire Pharmaceuticals Group plc (Shire)
related to Vantas®. Under this termination agreement, Shire relinquished its right to receive royalties on net
sales of Vantas® or a percentage of royalties and other consideration received in connection with a sublicense
of Vantas® selling and marketing rights granted by Shire. The termination agreement provided for Indevus to pay
Shire a total of $5.0 million. The remaining payments to be made to Shire consist of $1.4 million paid in January 2010 and $1.5 million payable in January 2011.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

In addition, we have agreed to certain contingent payments in certain of our acquisition, license, collaboration and other agreements.
Payments under these agreements generally become due and payable only upon the achievement of certain developmental, regulatory, commercial and/or other milestones. Due to the fact that it is uncertain if and when these milestones will be achieved,
such contingencies have not been recorded in our consolidated balance sheet and are not reflected in the table above. In addition, under certain arrangements, we may have to make royalty payments based on a percentage of future sales of the products
in the event regulatory approval for marketing is obtained. From a business perspective, we view these payments favorably as they signify that the products are moving successfully through the development phase toward commercialization.

As more fully described in Note 11 to the Consolidated Financial Statements in Part IV Item 15 of this Report, on January 1, 2007,
we adopted the provisions for accounting for uncertain tax provisions and recorded a $7.7 million non-current liability representing the Companys unrecognized tax benefits with respect to our uncertain tax positions. As of December 31,
2009, our liability for unrecognized tax benefits amounted to $34.3 million (including interest and penalties). Due to the nature and timing of the ultimate outcome of these uncertain tax positions, we cannot make a reasonably reliable estimate of
the amount and period of related future payments. Therefore, our liability has been excluded from the above contractual obligations table.

Fluctuations.Our quarterly results have fluctuated in the past, and may continue to fluctuate. These fluctuations may be to the timing of new product launches, purchasing patterns of our
customers, market acceptance of our products, the impact of competitive products and pricing, impairment of intangible assets, separation benefits, business combination transaction costs, upfront, milestone and certain other payments made or accrued
pursuant to licensing agreements and changes in the fair value of financial instruments and contingent assets and liabilities recorded as part of a business combination. Further, a substantial portion of our net sales are through three wholesale
drug distributors who in turn supply our products to pharmacies, hospitals and physicians. Accordingly, we are potentially subject to a concentration of credit risk with respect to our trade receivables.

Growth Opportunities. We continue to evaluate growth opportunities including strategic investments, licensing arrangements,
acquisitions of businesses, product rights or technologies, and strategic alliances and promotional arrangements which could require significant capital resources. We intend to continue to focus our business development activities on further
diversifying our revenue base through product licensing and company acquisitions, as well as other opportunities to enhance stockholder value. Through execution of our business strategy we intend to focus on developing new products through both an
internal and a virtual research and development organization with greater scientific and clinical capabilities; expanding the Companys product line by acquiring new products and technologies in existing therapeutic and complementary areas;
increasing revenues and earnings through sales and marketing programs for our innovative product offerings and effectively using the Companys resources; and providing additional resources to support our generics business.

Non-U.S. Operations. We currently have no operations outside of the United States. As a result, fluctuations in foreign
currency exchange rates do not have a material effect on our financial statements.

Inflation.We do not believe
that inflation had a material adverse effect on our financial statements for the periods presented.

Off-Balance Sheet
Arrangements.We have no off-balance sheet arrangements as defined in Item 303(a) (4) of Regulation S-K.



80



---

##### Table of Contents

CRITICAL ACCOUNTING ESTIMATES

To understand our financial statements, it is important to understand our critical accounting estimates. The preparation of our financial
statements in conformity with accounting principles generally accepted in the United States requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities
at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates and assumptions are required in the determination of revenue recognition and sales deductions for estimated
chargebacks, rebates, sales incentives and allowances, certain royalties, distribution service fees, returns and losses. Significant estimates and assumptions are also required when determining the fair value of marketable securities and other
financial instruments, the valuation of long-lived assets, income taxes, contingencies and stock-based compensation. Some of these judgments can be subjective and complex, and, consequently, actual results may differ from these estimates. For any
given individual estimate or assumption made by us, there may also be other estimates or assumptions that are reasonable. Although we believe that our estimates and assumptions are reasonable, they are based upon information available at the time
the estimates and assumptions were made. Actual results may differ significantly from our estimates.

We consider an
accounting estimate to be critical if: (1) the accounting estimate requires us to make assumptions about matters that were highly uncertain at the time the accounting estimate was made, and (2) changes in the estimate that are reasonably
likely to occur from period to period, or use of different estimates that we reasonably could have used in the current period, would have a material impact on our financial condition results of operations or cash flows. Our most critical accounting
estimates are described below:

Revenue Recognition

Our total revenues consist of revenues from sales of our pharmaceutical products, less estimates for chargebacks, rebates, sales incentives
and allowances, certain royalties, distribution service fees, returns and losses. We recognize revenue for product sales when title and risk of loss has passed to the customer, which is typically upon delivery to the customer, when estimated
provisions for chargebacks, rebates, sales incentives and allowances, certain royalties, distribution service fees, returns and losses are reasonably determinable, and when collectability is reasonably assured. Revenue from the launch of a new or
significantly unique product, for which we are unable to develop the requisite historical data on which to base estimates of returns, due to the uniqueness of the therapeutic area or delivery technology as compared to other products in our portfolio
and in the industry, may be deferred until such time that an estimate can be determined and all of the conditions above are met and when the product has achieved market acceptance, which is typically based on dispensed prescription data and other
information obtained during the period following launch.

Decisions made by wholesaler customers and large retail chain
customers regarding the levels of inventory they hold (and thus the amount of product they purchase from us) can materially affect the level of our sales in any particular period and thus may not correlate to the number of prescriptions written for
our products based on external third-party data. We believe that speculative buying of product, particularly in anticipation of possible price increases, has been the historic practice of many pharmaceutical wholesalers. Over the past three years,
our wholesaler customers, as well as others in the industry, began modifying their business models from arrangements where they derive profits from price arbitrage, to arrangements where they charge a fee for their services. Accordingly, we have
entered into Distribution Service Agreements (referred to as DSAs) with five of our wholesaler customers. These agreements, which pertain to branded products only, obligate the wholesalers to provide us with specific services, including the
provision of periodic retail demand information and current inventory levels for our branded products held at their warehouse locations; additionally, under these DSAs, the wholesalers have agreed to manage the variability of their purchases and
inventory levels within specified limits based on product demand.

Under the DSAs, we received information from our five
wholesaler customers about the levels of inventory they held for our branded products as of December 31, 2009. Based on this information, which we have not



81



---

##### Table of Contents

independently verified, we believe that total branded inventory held at these wholesalers is within normal levels. In addition, we also evaluate market conditions for products primarily through
the analysis of wholesaler and other third party sell-through and market research data, as well as internally-generated information.

Sales Deductions

When we recognize revenue from the sale of our products, we simultaneously record an
adjustment to revenue for estimated chargebacks, rebates, sales incentives and allowances, certain royalties, DSA fees, returns and losses. These provisions, as described in greater detail below, are estimated based on historical experience,
estimated future trends, estimated customer inventory levels, current contract sales terms with our wholesale and indirect customers and other competitive factors. If the assumptions we used to calculate these adjustments do not appropriately
reflect future activity, our financial position, results of operations and cash flows could be materially impacted.

The
following table presents the activity and ending balances for our product sales provisions for the last three years (in thousands):



|                             |  |         |        |   |         |   |          |             |  |   |                       |   |  |       |         |   |  |   |          |  
|---------------------------- |  | ------- | ------ | - | ------- | - | -------- | ----------- |  | - | --------------------- | - |  | ----- | ------- | - |  | - | -------- | -
|                             |  | Returns |        |   | Rebates |   |          | Chargebacks |  |   | Other SalesDeductions |   |  | Total |        
|Balance at January 1, 2007   |  | $       | 20,110 |   |         | $ | 72,813   |             |  | $ | 33,928                |   |  | $     | 5,872   |   |  | $ | 132,723  |  
|Current year provision       |  |         | 20,770 |   |         |   | 193,051  |             |  |   | 307,604               |   |  |       | 34,164  |   |  |   | 555,589  |  
|Prior year provision         |  |         | (1,357 | ) |         |   | (2,220   | )           |  |   | 3,753                 |   |  |       |        |   |  |   | 176      |  
|Payments or credits          |  |         | (8,325 | ) |         |   | (182,411 | )           |  |   | (310,710              | ) |  |       | (34,879 | ) |  |   | (536,325 | )
|                             |  |         |        |   |         |   |          |             |  |   |                       |   |  |       |         |   |  |   |          |  
|Balance at December 31, 2007 |  | $       | 31,198 |   |         | $ | 81,233   |             |  | $ | 34,575                |   |  | $     | 5,157   |   |  | $ | 152,163  |  
|                             |  |         |        |   |         |   |          |             |  |   |                       |   |  |       |         |   |  |   |          |  
|Current year provision       |  |         | 15,596 |   |         |   | 291,580  |             |  |   | 345,378               |   |  |       | 40,641  |   |  |   | 693,195  |  
|Prior year provision         |  |         | 200    |   |         |   | (5,763   | )           |  |   | (948                  | ) |  |       |        |   |  |   | (6,511   | )
|Payments or credits          |  |         | (8,012 | ) |         |   | (262,383 | )           |  |   | (343,023              | ) |  |       | (40,656 | ) |  |   | (654,074 | )
|                             |  |         |        |   |         |   |          |             |  |   |                       |   |  |       |         |   |  |   |          |  
|Balance at December 31, 2008 |  | $       | 38,982 |   |         | $ | 104,667  |             |  | $ | 35,982                |   |  | $     | 5,142   |   |  | $ | 184,773  |  
|                             |  |         |        |   |         |   |          |             |  |   |                       |   |  |       |         |   |  |   |          |  
|Current year provision       |  |         | 20,220 |   |         |   | 396,599  |             |  |   | 495,721               |   |  |       | 49,368  |   |  |   | 961,908  |  
|Prior year provision         |  |         | (1,287 | ) |         |   | (5,749   | )           |  |   | 1,164                 |   |  |       |        |   |  |   | (5,872   | )
|Payments or credits          |  |         | (9,641 | ) |         |   | (371,074 | )           |  |   | (480,963              | ) |  |       | (48,450 | ) |  |   | (910,128 | )
|                             |  |         |        |   |         |   |          |             |  |   |                       |   |  |       |         |   |  |   |          |  
|Balance at December 31, 2009 |  | $       | 48,274 |   |         | $ | 124,443  |             |  | $ | 51,904                |   |  | $     | 6,060   |   |  | $ | 230,681  |  
|                             |  |         |        |   |         |   |          |             |  |   |                       |   |  |       |         |   |  |   |          |  

Returns

Our provision for returns consists of our estimates of future product returns, pricing adjustments and delivery errors. Consistent with industry practice, we maintain a return policy that allows our
customers to return product within a specified period of time both prior and subsequent to the products expiration date. Our return policy allows customers to receive credit for expired products within six months prior to expiration and within
one year after expiration. The primary factors we consider in estimating our potential product returns include:



| |  |  | the shelf life or expiration date of each product;
| | - |  | --------------------------------------------------



| |  |  | historical levels of expired product returns;
| | - |  | ---------------------------------------------



| |  |  | external data with respect to inventory levels in the wholesale distribution channel;
| | - |  | -------------------------------------------------------------------------------------



| |  |  | external data with respect to prescription demand for our products; and
| | - |  | -----------------------------------------------------------------------



| |  |  | estimated returns liability to be processed by year of sale based on analysis of lot information related to actual historical returns.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------



82



---

##### Table of Contents

In determining our estimates for returns, we are required to make certain assumptions
regarding the timing of the introduction of new products and the potential of these products to capture market share. In addition, we make certain assumptions with respect to the extent and pattern of decline associated with generic competition. To
make these assessments we utilize market data for similar products as analogs for our estimations. We use our best judgment to formulate these assumptions based on past experience and information available to us at the time. We continually reassess
and make the appropriate changes to our estimates and assumptions as new information becomes available to us.

Our estimate
for returns may be impacted by a number of factors, but the principal factor relates to the level of inventory in the distribution channel. When we are aware of an increase in the level of inventory of our products in the distribution channel, we
consider the reasons for the increase to determine if the increase may be temporary or other-than-temporary. Increases in inventory levels assessed as temporary will not result in an adjustment to our provision for returns. Other-than-temporary
increases in inventory levels, however, may be an indication that future product returns could be higher than originally anticipated and, accordingly, we may need to adjust our estimate for returns. Some of the factors that may be an indication that
an increase in inventory levels will be temporary include:



| |  |  | recently implemented or announced price increases for our products; and
| | - |  | -----------------------------------------------------------------------



| |  |  | new product launches or expanded indications for our existing products.
| | - |  | -----------------------------------------------------------------------

Conversely, factors that may be an indication that an increase in inventory levels will be other-than-temporary include:



| |  |  | declining sales trends based on prescription demand;
| | - |  | ----------------------------------------------------



| |  |  | recent regulatory approvals to extend the shelf life of our products, which could result in a period of higher returns related to older product with
the shorter shelf life;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | introduction of new product or generic competition;
| | - |  | ---------------------------------------------------



| |  |  | increasing price competition from generic competitors; and
| | - |  | ----------------------------------------------------------



| |  |  | recent changes to the National Drug Codes (referred to as NDCs) of our products, which could result in a period of higher returns related to product
with the old NDC, as our customers generally permit only one NDC per product for identification and tracking within their inventory systems.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Rebates

We establish contracts with wholesalers, chain stores and indirect
customers that provide for rebates, sales incentives, DSA fees, and other allowances. Some customers receive rebates upon attaining established sales volumes. We estimate rebates, sales incentives and other allowances based upon the terms of the
contracts with our customers, historical experience, estimated inventory levels of our customers and estimated future trends. Our rebate programs can generally be categorized into the following four types:



| |  |  | direct rebates;
| | - |  | ---------------



| |  |  | indirect rebates;
| | - |  | -----------------



| |  |  | managed care rebates; and
| | - |  | -------------------------



| |  |  | Medicaid and Medicare Part D rebates.
| | - |  | -------------------------------------

Direct rebates are generally rebates paid to direct purchasing customers based on a percentage applied to a direct customers purchases from us, including DSA fees paid to wholesalers under our DSA
agreements, as described above. Indirect rebates are rebates paid to indirect customers which have purchased our products from a wholesaler under a contract with us.



83



---

##### Table of Contents

We are subject to rebates on sales made under governmental and managed-care pricing
programs. In estimating our provisions for these types of rebates, we consider relevant statutes with respect to governmental pricing programs and contractual sales terms with managed-care providers and group purchasing organizations. We estimate an
accrual for managed-care, Medicaid and Medicare Part D rebates as a reduction of revenue at the time product sales are recorded. These rebate reserves are estimated based upon the historical utilization levels, historical payment experience,
historical relationship to revenues and estimated future trends. Changes in the level of utilization of our products through private or public benefit plans and group purchasing organizations will affect the amount of rebates that we owe.

We participate in state government-managed Medicaid programs, as well as certain other qualifying federal and state
government programs whereby discounts and rebates are provided to participating government entities. Medicaid rebates are amounts owed based upon contractual agreements or legal requirements with public sector (Medicaid) benefit providers, after the
final dispensing of the product by a pharmacy to a benefit plan participant. Medicaid reserves are based on expected payments, which are driven by patient usage, contract performance, as well as field inventory that will be subject to a Medicaid
rebate. Medicaid rebates are typically billed up to 180 days after the product is shipped, but can be as much as 270 days after the quarter in which the product is dispensed to the Medicaid participant. As a result, our Medicaid rebate
provision includes an estimate of outstanding claims for end-customer sales that occurred but for which the related claim has not been billed, and an estimate for future claims that will be made when inventory in the distribution channel is sold
through to plan participants. Our calculation also requires other estimates, such as estimates of sales mix, to determine which sales are subject to rebates and the amount of such rebates. Periodically, we adjust the Medicaid rebate provision based
on actual claims paid. Due to the delay in billing, adjustments to actual may incorporate revisions of this provision for several periods. Medicaid pricing programs involve particularly difficult interpretations of statutes and regulatory guidance,
which are complex and thus our estimates could differ from actual experience.

We continually update these factors based on
new contractual or statutory requirements, and significant changes in sales trends that may impact the percentage of our products subject to rebates.

Chargebacks

The provision for chargebacks is one of the most significant
and the most complex estimate used in the recognition of our revenue. We market and sell products directly to wholesalers, distributors, warehousing pharmacy chains, and other direct purchasing groups. We also market products indirectly to
independent pharmacies, non-warehousing chains, managed care organizations, and group purchasing organizations, collectively referred to as indirect customers. We enter into agreements with some indirect customers to establish contract
pricing for certain products. These indirect customers then independently select a wholesaler from which to purchase the products at these contracted prices. Alternatively, we may pre-authorize wholesalers to offer specified contract pricing to
other indirect customers. Under either arrangement, we provide credit to the wholesaler for any difference between the contracted price with the indirect customer and the wholesalers invoice price. Such credit is called a chargeback. The
primary factors we consider in developing and evaluating our provision for chargebacks include:



| |  |  | the average historical chargeback credits;
| | - |  | ------------------------------------------



| |  |  | estimated future sales trends; and
| | - |  | ----------------------------------



| |  |  | an estimate of the inventory held by our wholesalers, based on internal analysis of a wholesalers historical purchases and contract sales.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------

Other sales deductions

We offer our customers 2% prompt pay cash discounts. Provisions for prompt pay discounts are estimated and recorded at the time of sale. We estimate provisions for cash discounts based on contractual
sales terms with customers, an analysis of unpaid invoices and historical payment experience. Estimated cash discounts have



84



---

##### Table of Contents

historically been predictable and less subjective, due to the limited number of assumptions involved, the consistency of historical experience and the fact that we generally settle these amounts
within thirty to sixty days.

Shelf-stock adjustments are credits issued to our customers to reflect decreases in the selling
prices of our products. These credits are customary in the industry and are intended to reduce a customers inventory cost to better reflect current market prices. The determination to grant a shelf-stock credit to a customer following a price
decrease is at our discretion rather than contractually required. The primary factors we consider when deciding whether to record a reserve for a shelf-stock adjustment include:



| |  |  | the estimated number of competing products being launched as well as the expected launch date, which we determine based on market intelligence;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the estimated decline in the market price of our product, which we determine based on historical experience and input from customers; and
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the estimated levels of inventory held by our customers at the time of the anticipated decrease in market price, which we determine based upon
historical experience and customer input.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Marketable Securities

We classify our marketable securities as available-for-sale securities or trading securities, depending on our intent. In rare or unique
circumstances, management may determine that a one-time transfer of securities from available-for-sale to a trading classification is appropriate. Available-for-sale and trading securities are carried at fair value with unrealized holding gains and
losses recorded within other comprehensive income and net income, respectively. Fair value is determined based on observable market quotes or valuation models using assessments of counterparty credit worthiness, credit default risk or underlying
security and overall capital market liquidity. The Company reviews unrealized losses associated with available-for-sale securities to determine the classification as a temporary or other-than-temporary impairment. A temporary
impairment results in an unrealized loss being recorded in other comprehensive income. An impairment that is viewed as other-than-temporary is recognized in net income. The Company considers various factors in determining the classification,
including the length of time and extent to which the fair value has been less than the Companys cost basis, the financial condition and near-term prospects of the issuer or investee, and the Companys ability to hold the investment for a
period of time sufficient to allow for any anticipated recovery in market value.

Generally, the Company classifies marketable
securities as current when maturity is less than or equal to twelve months or, if time to maturity is greater than twelve months, when they represent investments of cash that are intended to be used in current operations. As of December 31,
2009 and 2008, the Company held certain assets that are required to be measured at fair value on a recurring basis, including money market funds, available-for-sale securities and trading securities. Our available-for-sale and trading securities
consist primarily of auction-rate securities.

Overview of Auction-Rate Securities

Auction-rate securities are long-term variable rate bonds tied to short-term interest rates. After the initial issuance of the securities,
the interest rate on the securities is reset periodically, at intervals established at the time of issuance (e.g., every seven, twenty-eight, or thirty-five days; every six months; etc.). In an active market, auction-rate securities are bought and
sold at each reset date through a competitive bidding process, often referred to as a Dutch auction. Auctions are successful when the supply and demand of securities are in balance. Financial institutions brokering the auctions would
also participate in the auctions to balance the supply and demand. Beginning in the second half of 2007, auctions began to fail for specific securities and in mid-February 2008 auction failures became common, prompting market participants, including
financial institutions, to cease or limit their exposure to the auction-rate market. Given the current negative liquidity conditions in the global credit markets, the auction-rate securities market has become inactive. Consequently, our



85



---

##### Table of Contents

auction-rate securities are currently illiquid through the normal auction process. As a result of the inactivity in the market, quoted market prices and other observable data are not available or
their utility is limited.

At December 31, 2009 and 2008, the Company determined that the market for its auction-rate
securities were inactive. That determination was made considering that there are very few observable transactions for the auction-rate securities or similar securities, the prices for transactions that have occurred are not current, and the
observable prices for those transactions  to the extent they exist  vary substantially either over time or among market makers, thus reducing the potential usefulness of those observations. In addition, the current lack of liquidity
prevents the Company from comparing our securities directly to securities with quoted market prices. Consequently, while we have appropriately considered those observable inputs, ultimately, our auction-rate securities will be classified within
Level 3 of the fair value hierarchy described in Note 3 to the Consolidated Financial Statements included in Part IV Item 15 of this Annual Report on Form 10-K.

The Companys auction-rate securities consist of municipal bonds with an auction reset feature, the underlying assets of which are student loans that are backed substantially by the federal
government and have underlying credit ratings of Baa3 or better as of December 31, 2009. Further, the issuers have been making interest payments promptly.

Overview of Auction-Rate Securities Rights

In October 2008, UBS AG
(referred to as UBS) made an offer (referred to as the UBS Offer) to the Company and other clients of UBS Securities LLC and UBS Financial Services Inc. (collectively referred to as the UBS Entities), pursuant to which the Company would receive
auction-rate securities rights (referred to as the Rights) to sell to UBS all auction-rate securities held by the Company as of February 13, 2008 in a UBS account (referred to as the Eligible Auction-Rate Securities). The Rights permit the
Company to require UBS to purchase the Eligible Auction-Rate Securities for a price equal to par value plus any accrued but unpaid dividends or interest beginning on June 30, 2010 and ending on July 2, 2012. As of December 31, 2009,
we had Eligible Auction-Rate Securities with a par value of $230.3 million, representing 92% of our total auction-rate securities portfolio at par. The remaining eight percent (8%), or $18.8 million at par, of our auction-rate securities portfolio
are not held in a UBS account and therefore are not subject to the UBS Offer.

On November 10, 2008, the Company accepted
the UBS Offer. As a result, the Company granted to the UBS Entities, the sole discretion and right to sell or otherwise dispose of, and/or enter orders in the auction process with respect to the Eligible Auction-Rate Securities on the Companys
behalf until the Expiration Date, without prior notification, so long as the Company receives a payment of par value plus any accrued but unpaid dividends or interest upon any sale or disposition.

Acceptance of the UBS Offer created an enforceable legal right by and between the Company and UBS. The UBS Offer is a legally separate
contractual agreement and is non-transferable. The Rights are not readily convertible to cash and do not provide for net settlement. That is, the Company must tender the securities to receive the Rights. Accordingly, the Rights do not meet the
definition of a derivative instrument and are being treated as a freestanding financial instrument. Accordingly, in 2008, the Company recognized an asset, measured at fair value, in the amount of $25.4 million with the resultant gain recorded in
Other (income) expense, net in the Consolidated Statements of Operations.

Subsequent Accounting for Auction-Rate
Securities and Auction-Rate Securities Rights

Acceptance of the UBS Offer constituted a substantive change in facts and
circumstances that altered the Companys view that it intended to hold the illiquid securities until their scheduled maturity date. As a result of the change, we recognized an other than temporary impairment charge as of December 31, 2008
of approximately $26.4 million that is included in Other (income) expense, net in the Consolidated Statements of Operations.



86



---

##### Table of Contents

Concurrent with the acceptance of the UBS offer, the Company made a one-time election to
re-classify the Eligible Auction-Rate Securities from an available-for-sale security to a trading security. The Company made the election to transfer the securities into trading after considering the unprecedented failure of the entire market for
auction-rate securities and the broad-reaching legal settlements that have been agreed to by certain broker-dealers and securities regulators. Subsequent changes to the fair value of these trading securities resulted in a gain of $15.2 million and
an additional expense of $4.2 million during the year ended December 31, 2009 and 2008, respectively, and were recorded in other (income) expense, net in the Consolidated Statements of Operations.

During 2008, we elected the fair value option for our auction-rate securities rights. As a result of our election, the fair value of the
auction-rate securities rights are re-measured each reporting period with the corresponding changes in fair value reported in earnings. Since the auction-rate securities rights are freestanding financial instruments, they do not affect the separate
determination of the fair value of the Eligible Auction-Rate Securities. However, in managements view, the auction-rate securities rights act as an economic hedge against further fair value changes in the Eligible Auction-Rate Securities. At
December 31, 2009, the fair value of our auction-rate securities rights were $15.7 million. The changes in fair value from November 10, 2008 to December 31, 2008 resulted in a $1.9 million gain compared to an $11.7 million loss during
the year ended December 31, 2009. These amounts were recognized in earnings and included in other (income) expense, net in the Consolidated Statements of Operations. Future changes in fair value will also be recognized in earnings.

Valuation of the Auction-Rate Securities

The Company has determined that an income approach (present value technique) that maximizes the use of observable market inputs is the preferred approach to measuring the fair value of our securities.
Specifically, the Company used the discount rate adjustment technique to determine an indication of fair value.

To calculate
a price for our auction-rate securities, the Company calculates duration to maturity, coupon rates, market required rates of return (discount rate) and a discount for lack of liquidity in the following manner:



| |  |  | The Company identifies the duration to maturity of the auction-rate securities as the time at which principal is available to the investor. This can
occur because the auction-rate security is paying a coupon that is above the required rate of return, and the Company treats the security as being called. It can also occur because the market has returned to normal and the Company treats the
auctions as having recommenced. Lastly, and most frequently, the Company treats the principal as being returned as prepayment occurs and at the maturity of the security. The weighted average life used for each security representing time to maturity
ranges from five to eight years. The weighted average life measured across the entire auction-rate portfolio is approximately eight years.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The Company calculates coupon rates based on estimated relationships between the maximum coupon rate (the coupon rate in event of a failure) and market
interest rates. The representative coupon rates on December 31, 2009 and 2008 ranged from 5.37% to 6.12% and 3.86% to 3.96%, respectively. The Company calculates appropriate discount rates for securities that include base interest rates, index
spreads over the base rate, and security-specific spreads. These spreads include the possibility of changes in credit risk over time. At December 31, 2009 and 2008, the spreads over the base rate for our securities applied to our securities
ranged from 154 basis points to 410 basis points and 264 basis points to 588 basis points, respectively.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The Company believes that a market participant would require an adjustment to the required rate of return to adjust for the lack of liquidity. We do
not believe it is unreasonable to assume a 150 basis points adjustment to the required rate of return and a term of either three, four or five years to adjust for this lack of liquidity. The increase in the required rate of return decreases the
prices of the securities. However, the assumption of a three, four or five-year term shortens the times to maturity and increases the prices of the securities. The Company has evaluated the impact of applying each term and the reasonableness of the
range indicated by the results. The Company chose to use a four-year term to
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



87



---

##### Table of Contents

| | adjust for the lack of liquidity as we believe it is the point within the range that is most representative of fair value. The Companys conclusion is based in part on the fact that the fair
values indicated by the results are reasonable in relation to each other given the nature of the securities and current market conditions.
| | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

At December 31, 2009, the fair value of our auction-rate securities, as determined by applying the above described discount rate adjustment technique, was approximately $232.6 million, representing a
seven percent (7%), or $16.5 million discount from their original purchase price or par value. This compares to approximately $240.5 million, representing a 12%, or $32.4 million discount from their original purchase price or par value at
December 31, 2008. Had the Company chosen to apply a three or five year term with respect to the liquidity adjustment at December 31, 2009, the resultant discount to the original purchase price or par value would have been $12.9 million
and $19.9 million, respectively. We believe we have appropriately reflected our best estimate of the assumptions that market participants would use in pricing the assets in a current transaction to sell the asset at the measurement date.
Accordingly, the carrying value of our auction-rate securities at December 31, 2009 and 2008 were reduced by approximately $16.5 million and $32.4 million, respectively. These adjustments appropriately reflect the changes in fair value, which
the Company attributes to liquidity issues rather than credit issues.

The portion of this increase in fair value related to
the Eligible Auction-Rate Securities from December 31, 2008 was recorded in earnings as changes in the fair value of trading securities. The Company has assessed the portion of the change in fair value not associated with the Eligible
Auction-Rate Securities to be temporary due to the financial condition and near-term prospects of the underlying issuers, our intent and ability to retain our investment in the issuers for a period of time sufficient to allow for any anticipated
recovery in market value and based on the extent to which fair value is less than par. Accordingly, we recorded a $0.6 million gain and a $1.7 million loss in shareholders equity in accumulated other comprehensive loss as of December 31,
2009, and 2008, respectively. Securities not subject to the UBS Offer are analyzed each reporting period for other-than-temporary impairment factors. Any future fluctuation in fair value related to these instruments that the Company judges to be
temporary, including any recoveries of previous write-downs, would be recorded to other comprehensive income. If the Company determines that any future valuation adjustment was other-than-temporary, it would record a charge to earnings as
appropriate. However, there can be no assurance that our current belief that the securities not subject to the UBS Offer will recover their value will not change.

Valuation of the Auction-Rate Securities Rights

The Company has determined
that an income approach (present value technique) that maximizes the use of observable market inputs is the preferred approach to measuring the fair value of the auction-rate securities rights. Specifically, the Company used the discount rate
adjustment technique to determine fair value.

The values of the Rights were estimated as the value of a portfolio designed to
approximate the cash flows of the UBS Agreement. The portfolio consists of a bond issued by UBS that will mature equal to the face value of the auction-rate securities, a series of payments that will replicate the coupons of the auction-rate
securities, and a short position in the callable auction-rate security. If the UBS agreement is in the money on the exercise date, then both the UBS agreement and the replicating portfolio will be worth the difference between the par value of the
auction-rate-securities and the market value of the auction-rate-securities. If the UBS agreement is out of the money on the exercise date, then both the replicating portfolio and the UBS agreement will have no value.

For purposes of valuing the UBS bond, management selected a required rate of return for a UBS obligation based on market factors including
relevant credit default spreads. The rate of return for the auction-rate securities is determined as described above under Valuation of the Auction-Rate Securities and is used to determine the present value of the coupons of the
auction-rate security.



88



---

##### Table of Contents

At December 31, 2009 and 2008, the fair value of our auction-rate securities rights, as
determined by applying the above described discount rate adjustment technique, was approximately $15.7 million and $27.3 million, respectively. As described above, the Company chose to use a four-year term to adjust for the lack of liquidity on the
auction-rate securities as we believe it is the point within the range that is most representative of fair value. Accordingly, the same term was used when valuing the Rights. Had the Company chosen to apply a three or five-year term with respect to
the liquidity adjustment for the auction-rate securities, the resultant value of the Rights at December 31, 2009 would have been $12.2 million and $18.8 million, respectively. We believe we have appropriately reflected our best estimate of the
assumptions that market participants would use in pricing the asset in a current transaction to sell the asset at the measurement dates.

Given the inactivity in the auction-rate securities market, the Company cannot predict when future auctions related to our existing auction-rate securities portfolio will be successful. As a result of the
current illiquidity in the auction-rate securities markets and the long-term remaining duration of the underlying securities, we have classified these investments as long-term marketable securities in the Consolidated Balance Sheets. Auction-rate
securities classified as long-term at December 31, 2009 and December 31, 2008 were $207.3 million and $234.0 million, respectively.

Since February 2008, when we began to experience failed auctions, we have divested, without a loss, $89.9 million of our original par value auction-rate securities, either through successful auctions or
mandatory tenders by the issuers. We do not employ an asset management strategy or tax planning strategy that would require us to sell any of our existing securities at a loss. Furthermore, there have been no adverse changes in our business or
industry that could require us to sell the securities at a loss in order to meet working capital requirements.

Valuation of Long-lived
Assets

Long-lived assets, including property, plant and equipment, licenses and patents are assessed for impairment,
whenever events or changes in circumstances indicate the carrying amount of the asset may not be recoverable. Recoverability of assets that will continue to be used in our operations are measured by comparing the carrying amount of the asset to the
forecasted undiscounted future cash flows of the product. In the event the carrying value of the asset exceeds the undiscounted future cash flows of the product and the carrying value is not considered recoverable, impairment exists. An impairment
loss is measured as the excess of the assets carrying value over its fair value, generally based on a discounted future cash flow method, independent appraisals or preliminary offers from prospective buyers. An impairment loss would be
recognized in net income in the period that the impairment occurs. As a result of the significance of our amortizable intangibles, any recognized impairment loss could have a material adverse impact on our financial position and/or results of
operations.

Events giving rise to impairment are an inherent risk in the pharmaceutical industry and cannot be predicted.
Factors that we consider in deciding when to perform an impairment review include significant under-performance of a product line in relation to expectations, significant negative industry or economic trends, and significant changes or planned
changes in our use of the assets.

During 2009, we did not recognize an impairment charge as a result of our review of
long-lived assets.

During the year ended December 31, 2008, as a result of our decision to discontinue the development
of Rapinyl, we recorded an impairment charge of $8.1 million related to the remaining unamortized portion of our Rapinyl intangible asset, and $3.1 million to write off certain other assets related to the development of Rapinyl. In
addition, during the year ended December 31, 2008, we recorded impairment charges totaling $1.5 million related to the abandonment of certain long-lived assets.

The cost of licenses are either expensed immediately or, if capitalized, are stated at cost, less accumulated amortization and are amortized using the straight-line method over their estimated useful
lives ranging from five



89



---

##### Table of Contents

to twenty years, with a weighted average useful life of approximately 10.3 years. We determine amortization periods for licenses based on our assessment of various factors impacting estimated
useful lives and cash flows of the acquired rights. Such factors include the expected launch date of the product, the strength of the intellectual property protection of the product and various other competitive, developmental and regulatory issues,
and contractual terms. Significant changes to any of these factors may result in a reduction in the useful life of the license and an acceleration of related amortization expense, which could cause our operating income, net income and earnings per
share to decrease. The value of these licenses is subject to continuing scientific, medical and marketplace uncertainty.

Goodwill and
Indefinite-lived Intangible Assets

Endo tests goodwill and indefinite-lived intangible assets for
impairment annually, or more frequently if events or changes in circumstances indicate that the asset might be impaired. Our annual assessment is performed as of January 1st. Although the Company has one operating segment, Pharmaceutical Products, we have determined that the Company has two
reporting units; (1) Pain & Specialty Generics and (2) Urology, Endocrinology and Oncology (referred to as UEO). The goodwill test consists of a Step I analysis that requires a comparison between the respective reporting units
fair value and carrying value. A Step II analysis would be required if the fair value of the reporting unit is lower than its carrying value. If the fair value of the reporting unit exceeds its carrying value, an impairment does not exist and no
further analysis is required.

On December 2, 2009, the Company received a complete response letter
from the FDA regarding its NDA for AveedTMand determined
this to be a triggering event requiring us to perform an interim goodwill impairment test on our UEO reporting unit. Therefore, we performed a goodwill impairment test on our UEO reporting unit as of December 2, 2009 after giving effect to the
AveedTMindefinite-lived intangible asset impairment
described below. Our UEO reporting unit was also tested for impairment again as of January 1, 2010, our annual assessment date, along with our Pain & Specialty Generics reporting unit. The results of our analyses showed that the fair value
of both of our reporting units substantially exceeded their respective carrying values and thus no goodwill impairment exists.

Based upon recent market conditions, and a lack of comparable market transactions for similar assets, Endo determined that an income approach using a discounted cash flow model was an appropriate valuation methodology to determine each
reporting units fair value. The income approach converts future amounts to a single present value amount (discounted cash flow model). Our discounted cash flow models are highly reliant on various assumptions, including estimates of
future cash flow (including long-term growth rates), discount rate, and expectations about variations in the amount and timing of cash flows and the probability of achieving the estimated cash flows. We believe we have appropriately reflected our
best estimates of the assumptions that market participants would use in determining the fair value of our reporting units at the measurement dates.

The Company also performed an impairment analysis on all of its indefinite-lived intangible assets. The impairment test consists of a one step analysis that compares the fair value of the intangible asset
with its carrying amount. If the carrying amount of an intangible asset exceeds its fair value, an impairment loss is recognized in an amount equal to that excess. In December 2009, the Companys Phase III clinical trials for Pro2000 provided
conclusive results that the drug was not effective. In December 2009, the Company concluded there was no further value or alternative future uses associated with this indefinite-lived asset. Accordingly, we recorded a $4 million impairment charge to
write-off the Pro2000 intangible asset in its entirety. Additionally, as a result of the FDAs Complete Response letter related to our NDA for Aveed, the Company performed an impairment review as of December 2, 2009 for the
Aveed indefinite-lived intangible asset.

Although the Company is continuing to evaluate the
FDAs findings to better understand the agencys concerns, we were required to estimate the fair value of our AveedTMindefinite-lived intangible asset as of the date we received the Complete Response letter. To estimate fair value we
assessed the possible changes to the products indication and targeted population of eligible recipients, the future probability of regulatory approval, relative timing of commercialization, and estimates of the amount and timing of future cash
flows. In January



90



---

##### Table of Contents

2010, the Company was notified that the U.S. patent office had issued a Notice of Allowance on a patent covering the AveedTMformulation. Therefore, management considered the likely benefit of patent exclusivity when estimating these future
cash flows. To calculate the fair value of the Aveed intangible asset, the Company used an income approach using a discounted cash flow model considering managements current evaluation of the above mentioned factors. The Company utilized
probability-weighted cash flow models using a present value discount factor of 15% which we believe to be commensurate with the overall risk associated with this particular product. The cash flow models included our best estimates of future FDA
approval associated with each potential indication and population of eligible recipients. The Company believes that the level and timing of cash flows assumed, discount rate, and probabilities of success appropriately reflect market participant
assumptions.

The fair value of the Aveed intangible asset was determined to be $35 million. Accordingly, the Company
recorded a pre-tax non-cash impairment charge of $65 million for the year ended December 31, 2009, representing the difference between the carrying value of the intangible asset and its estimated fair value. The impairment charge has been
recognized in earnings and is included the Impairment of other intangible assets line item in the Consolidated Statements of Operations. We believe the most subjective assumption in our discounted cash flow model is the probability of regulatory
approval. Assessing the probability of achieving the estimated cash flows is challenging particularly as it relates to in-process research and development assets. These probabilities have a material impact on the ultimate fair value of the asset as
the probability of regulatory approval is applied directly to our future revenue projections. Although we believe our probabilities of success used in our fair value determination are reasonable, changes in these assumptions would impact the
impairment charge as follows: A 500 basis point change in the overall probability of approval would have resulted in a change to the impairment charge of approximately $5 million.

The Company is continuing to evaluate how best to address the concerns of the FDA and intends to have future dialogue
with the agency regarding a possible regulatory pathway. The outcome of future communications with the FDA could have a material impact on (1) managements assessment of the overall probability of approval, (2) the timing of such
approval, (3) the targeted indication or patient population and (4) the likelihood of additional clinical trials. Changes in any of these assumptions may result in a further reduction to the estimated fair value of the AveedTMintangible asset resulting in additional and potentially full future
impairment charges. Such additional impairment charges could materially impact our results of operations in future periods.

Acquisition-related In-Process Research and Development and Contingent Consideration

Effective
January 1, 2009, acquired businesses are accounted for using the acquisition method of accounting, which requires that the purchase price be allocated to the net assets acquired at their respective fair values. Any excess of the purchase price
over the estimated fair values of the net assets acquired is recorded as goodwill. Amounts allocated to acquired in process research and development (referred to as IPR&D) and contingent consideration are recorded to the balance sheet at the
date of acquisition based on their relative fair values. The judgments made in determining the estimated fair value assigned to each class of assets acquired and liabilities assumed, as well as asset lives, can materially impact our results of
operations.

There are several methods that can be used to determine the fair value of assets acquired and liabilities
assumed. For intangible assets, including IPR&D, we typically use the income method. This method starts with our forecast of all of the expected future net cash flows. These cash flows are then adjusted to present value by applying
an appropriate discount rate that reflects the risk factors associated with the cash flow streams. Some of the more significant estimates and assumptions inherent in the income method or other methods include: the amount and timing of projected
future cash flows; the amount and timing of projected costs to develop the IPR&D into commercially viable products; the discount rate selected to measure the risks inherent in the future cash flows; and the assessment of the assets life
cycle and the competitive trends impacting the asset, including consideration of any technical, legal, regulatory, or economic barriers to entry, as well as expected changes in standards of practice for indications addressed by the asset.



91



---

##### Table of Contents

Determining the useful life of an intangible asset also requires judgment, as different
types of intangible assets will have different useful lives. Acquired IPR&D is designated as an indefinite-lived intangible asset until the associated research and development activities are completed or abandoned.

We account for contingent consideration in accordance with applicable guidance provided within the business combination rules. As part of
our consideration for the Indevus acquisition, we are contractually obligated to pay certain consideration resulting from the outcome of future events. Therefore, we are required to update our assumptions each reporting period, based on new
developments, and record such amounts at fair value until such consideration is satisfied.

The contingent
consideration relates to the amounts payable under the AveedTMContingent Cash Consideration Agreement and the Octreotide Contingent Cash Consideration Agreement. In the event that the Company receives an approval letter from the FDA with respect to the AveedTMNDA on or before the third anniversary of the time at which we
purchased the Indevus Shares in the Offer, then the Company will, subject to the terms described below, (i) pay an additional $2.00 per Indevus Share to the former stockholders of Indevus, if such approval letter grants the right to market and
sell AveedTMimmediately and provides labeling for AveedTMthat does not contain a boxed warning
(AveedTMWith Label) or alternatively, (ii) pay an
additional $1.00 per Indevus Share, if such approval letter grants the right to market and sell AveedTMimmediately and provides labeling for AveedTMthat contains a boxed warning (AveedTMWithout Label). In the event that either an AveedTMWith Label approval or an AveedTMWithout Label approval has not been obtained prior to the third anniversary of the closing of the Offer, then the Company will not pay, and the former Indevus stockholders will not receive, any payments
under the AveedTMContingent Cash Consideration Agreement.

Further, in the event that the AveedTMWithout Label approval is received and subsequently, Endo and its subsidiaries publicly report audited financial
statements which reflect cumulative net sales of AveedTMof at least $125.0 million for four consecutive calendar quarters on or prior to the fifth anniversary of the date of the first commercial sale of AveedTM(AveedTMNet Sales Event), then the Company will, subject to the terms described below, pay an additional $1.00 per Indevus
Share to the former stockholders of Indevus. In the event that the AveedTMNet Sales Event does not occur prior to the fifth anniversary of the date of the first commercial sale of AveedTMthen the Company will not pay, and former Indevus stockholders will not receive, any additional amounts under the
AveedTMContingent Cash Consideration Agreement.

The range of the undiscounted amounts the Company could pay under the AveedTMContingent Cash Consideration Agreement is between $0 and
approximately $175 million. The fair value of the contractual obligation to pay the AveedTMcontingent consideration recognized as of December 31, 2009 was $7.5 million. We determined the fair value of the obligation to pay the AveedTMcontingent consideration based on a probability-weighted income approach. This fair value measurement is
based on significant inputs not observable in the market and thus represents a Level 3 measurement within the fair value hierarchy. Under the AveedTMContingent Cash Consideration Agreement, there are three scenarios that could potentially lead to amounts being paid
to the former stockholders of Indevus. These scenarios are (1) obtaining an AveedTMWith Label approval, (2) obtaining an AveedTMWithout Label approval and (3) achieving the $125.0 million sales milestone on or prior to the fifth anniversary of the date of the first commercial sale of AveedTMshould the AveedTMWithout Label approval be obtained. The fourth scenario is AveedTMnot receiving approval within three years of the closing of the
Offer, which would result in no payment to the former stockholders of Indevus. Each scenario was assigned a probability based on the current regulatory status of AveedTM. The resultant probability-weighted cash flows were then discounted using a discount rate of U.S. Prime plus 300 basis
points, which the Company believes is appropriate and is representative of a market participant assumption.

Similarly, in the
event that an approval letter from the FDA is received with respect to an octreotide NDA (such approval letter, the Octreotide Approval) on or before the fourth anniversary of the closing of the Offer, then the Company will, subject to the terms
described below, pay an additional $1.00 per Indevus Share to the former stockholders of Indevus (such payment, the Octreotide Contingent Cash Consideration Payment). In the



92



---

##### Table of Contents

event that an Octreotide Approval has not been obtained prior to the fourth anniversary of the closing of the Offer, then the Company will not pay, and the former Indevus stockholders shall not
receive, the Octreotide Contingent Cash Consideration Payment.

The range of the undiscounted amounts the Company could pay
under the Octreotide Contingent Cash Consideration Agreement is between $0 and approximately $91 million. The fair value of the octreotide contractual obligation to pay the contingent consideration recognized as of December 31, 2009 was $42.5
million. We determined the fair value of the contractual obligation to pay the Octreotide Contingent Consideration Payment based on a probability-weighted income approach. This fair value measurement is based on significant inputs not observable in
the market and thus represents a Level 3 measurement within the fair value hierarchy. Under the Octreotide Contingent Cash Consideration Agreement, the two scenarios that require consideration are (1) Octreotide Approval on or before the fourth
anniversary of the closing of the Offer or (2) no Octreotide Approval on or before the fourth anniversary of the closing of the Offer. Each scenario was assigned a probability based on the current development stage of octreotide. The resultant
probability-weighted cash flows were then discounted using a discount rate of U.S. Prime plus 300 basis points, which the Company believes is appropriate and is representative of a market participant assumption.

In addition to the potential contingent payments under the AveedTMContingent Cash Consideration Agreement and the Octreotide Contingent Cash Consideration Agreement, the
Company assumed a pre-existing contingent consideration obligation relating to Indevuss acquisition of Valera Pharmaceuticals, Inc. (Valera Contingent Consideration), which was consummated on April 18, 2007. The Valera Contingent
Consideration entitles former Valera shareholders to receive additional Indevus Shares based on an agreed upon conversion factor if FDA approval of the octreotide implant for the treatment for acromegaly is achieved on or before April 18, 2012.
Upon Endos acquisition of Indevus, each Valera shareholders right to receive additional Indevus Shares was converted into the right to receive $4.50 per Indevus Share that such former Valera shareholder would have received plus
contractual rights to receive up to an additional $3.00 per Indevus Share that such former Valera shareholder would have received in contingent cash consideration payments under the AveedTMContingent Cash Consideration Agreement and the Octreotide Contingent Cash Consideration Agreement. These amounts
would only be payable to former Valera shareholders if there were Octreotide Approval. The range of the undiscounted amounts the Company could pay with respect to the Valera Contingent Consideration is between $0 and approximately $33 million.

The Company is accounting for the Valera Contingent Consideration in the same manner as if it had entered
into that arrangement with respect to its acquisition of Indevus. Accordingly, the fair value of the Valera Contingent Consideration recognized as of December 31, 2009 was $8.5 million. Fair value was estimated based on a probability-weighted
discounted cash flow model, or income approach. This fair value measurement is based on significant inputs not observable in the market and thus represents a Level 3 measurement within the fair value hierarchy. The fair value of the Valera
Contingent Consideration is estimated using the same assumptions used for the AveedTMContingent Cash Consideration Agreement and Octreotide Contingent Cash Consideration Agreement, except that the probabilities associated with the Valera Contingent Consideration take into account the
probability of obtaining the Octreotide Approval on or before the fourth anniversary of the closing of the Offer. This is due to the fact that the Valera Contingent Consideration will not be paid unless octreotide for the treatment of acromegaly is
approved prior to April 18, 2012.

As of December 31, 2009, the fair value of the
acquisition-related contingent consideration decreased by approximately $128.1 million from the acquisition date primarily reflecting managements current assessment of the decreased probability that we will be obligated to make contingent
consideration payments under the AveedTMContingent Cash
Consideration Agreement within the specified contractual timeframe, as well as the anticipated timeline for the NDA filing and FDA approval of octreotide. The decrease in the liability was recorded as a gain and is included in the
Acquisition-related items line item in the accompanying Consolidated Statements of Operations. A 500 basis point change in the probability of receiving FDA approval on AveedTMwithin the specified contractual timeframe would have resulted in an approximate $4.0 million change in the



93



---

##### Table of Contents

value of our acquisition-related contingent consideration. Changes in any of our assumptions may result in a further volatility to the estimated fair value of the acquisition-related contingent
consideration. Such additional changes to fair value could materially impact our results of operations in future periods.

Income Taxes

Provisions for income taxes are calculated on reported pre-tax income based on current tax laws, statutory tax rates
and available tax incentives and planning opportunities in various jurisdictions in which we operate. Such provisions differ from the amounts currently receivable or payable because certain items of income and expense are recognized in different
time periods for financial reporting purposes than for income tax purposes. We recognize deferred taxes by the asset and liability method of accounting for income taxes. Under the asset and liability method, deferred income taxes are recognized for
differences between the financial statement and tax bases of assets and liabilities at enacted statutory tax rates in effect for the years in which the differences are expected to reverse. Significant judgment is required in determining income tax
provisions and evaluating tax positions. Valuation allowances are recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized. The factors used to assess the likelihood of realization are the
Companys forecast of future taxable income and available tax planning strategies that could be implemented to realize the net deferred tax assets. Failure to achieve forecasted taxable income in applicable tax jurisdictions could affect the
ultimate realization of deferred tax assets and could result in an increase in the Companys effective tax rate on future earnings.

At December 31, 2009, we had $303.8 million of gross deferred tax assets, which included federal and state net operating loss carryforwards (NOLs) of $122.6 million, research and development
(R&D) credit carryforwards of $11.6 million, capital loss carryforwards of $11.2 million and temporary differences of approximately $158.4 million. At December 31, 2009, our NOLs and R&D credit carryforwards were related to multiple tax
jurisdictions, including federal and various state jurisdictions, which expire at intervals between 2010 and 2028. We evaluate the potential realization of our deferred tax benefits on a jurisdiction-by-jurisdiction basis. Our analysis of the
realization considers the probability of generating taxable income or other sources of income as defined within the applicable income tax authoritative guidance, which could be utilized to support the assets over the permitted carryforward period in
each jurisdiction. Where we have determined under the more likely than not standard that we do not have a better-than-50% probability of realization, we establish a valuation allowance against that portion of the deferred tax asset where our
analysis and judgment indicates a less-than-50% probability of realization. Based on our forecasted taxable income within these jurisdictions, we believe we will generate sufficient future taxable income to realize a significant portion of our
deferred tax assets associated with our NOLs and R&D credit carryfowards. However, the Company does not anticipate future capital gains that would be required to obtain the tax benefit of our net unrealized capital loss. Accordingly, this
deferred tax asset is offset by a valuation allowance of $11.2 million at December 31, 2009.

On a periodic basis, we
evaluate the realizability of our deferred tax assets and liabilities and will adjust such amounts in light of changing facts and circumstances, including but not limited to future projections of taxable income, tax legislation, rulings by relevant
tax authorities, tax planning strategies and the progress of ongoing tax audits. Settlement of filing positions that may be challenged by tax authorities could impact the income tax position in the year of resolution.

On January 1, 2007, the Company adopted the provisions for accounting for uncertain tax positions. The provisions apply to all material
tax positions in all taxing jurisdictions for all open tax years. The guidance establishes a two-step process for evaluating tax positions. Step 1  Recognition, requires the Company to determine whether a tax position, based solely on its
technical merits, has a likelihood of more than 50 percent (more-likely-than-not) that the tax position taken will be sustained upon examination. Step 2  Measurement, which is only addressed if Step 1 has been satisfied, requires
the Company to measure the tax benefit as the largest amount of benefit, determined on a cumulative probability basis that is more-likely-than-not to be realized upon ultimate settlement.



94



---

##### Table of Contents

Contingencies

The Company is subject to various patent, product liability, government investigations and other legal proceedings in the ordinary course of business. Legal fees and other expenses related to litigation
are expensed as incurred and included in selling, general and administrative expenses. Contingent accruals are recorded when the Company determines that a loss related to a litigation matter is both probable and reasonably estimable. Due to the fact
that legal proceedings and other contingencies are inherently unpredictable, our assessments involve significant judgments regarding future events.

Stock-Based Compensation

The Company accounts for its stock-based compensation plans in accordance with
the guidance for share-based payments. Accordingly, all stock-based compensation is measured at the grant date, based on the estimated fair value of the award, and is recognized as an expenses over the requisite service period. Determining the
appropriate fair-value model and calculating the fair value of share-based awards at the date of grant requires judgment. We use the Black-Scholes option pricing model to estimate the fair value of employee stock options.

The Black-Scholes option pricing model utilizes assumptions related to volatility, the risk-free interest rate, the dividend yield (which is
expected to be zero, as the Company has not paid cash dividends to date and does not currently expect to pay cash dividends) and the expected term of the option. Expected volatilities utilized in the model are based mainly on the historical
volatility of the Companys stock price and other factors. To the extent volatility of our stock price increases in the future, our estimates of the fair value of stock options granted in the future could increase, thereby increasing
stock-based compensation expense in future periods. The risk-free interest rate is derived from the U.S. Treasury yield curve in effect at the time of grant. We estimate the expected term of options granted based on our historical experience with
our employees exercise of stock options and other factors, including an estimate of the number of share-based awards which will be forfeited due to employee turnover. Changes in the estimated forfeiture rate may have a significant effect on
share-based compensation, as the effect of adjusting the rate for all expense amortization is recognized in the period the forfeiture estimate is changed. If the actual forfeiture rate is higher than the estimated forfeiture rate, then an adjustment
is made to increase the estimated forfeiture rate, which will result in a decrease to the expense recognized in the financial statements. If the actual forfeiture rate is lower than the estimated forfeiture rate, then an adjustment is made to
decrease the estimated forfeiture rate, which will result in an increase to the expense recognized in the financial statements. Changes in the inputs and assumptions can materially affect the measurement of the estimated fair value of our employee
stock options. If there are any modifications or cancellations of the underlying unvested securities, we may be required to accelerate, increase or cancel any remaining unearned stock-based compensation expense. Also, the accounting estimate of
stock-based compensation expense is reasonably likely to change from period to period as further stock options are granted and adjustments are made for stock option forfeitures and cancellations.

The fair value of our restricted stock grants is based on the fair market value of our common stock on the date of grant discounted for
expected future dividends.

RECENT ACCOUNTING PRONOUNCEMENTS

Accounting Pronouncements Issued But Not Yet Adopted

In June 2009, FASB issued authoritative guidance on accounting for variable interest entities, which is effective for reporting periods beginning after November 15, 2009. The amendments change
the process for how an enterprise determines which party consolidates a variable interest entity (referred to as VIE) to a primarily qualitative analysis. The party that consolidates the VIE (the primary beneficiary) is defined as the party with
(1) the power to direct activities of the VIE that most significantly affect the VIEs economic performance and (2) the obligation to absorb losses of the VIE or the right to receive benefits from the VIE. Upon adoption, reporting
enterprises must reconsider their conclusions on whether an entity should be consolidated and should a



95



---

##### Table of Contents

change result, the effect on net assets will be recorded as a cumulative effect adjustment to retained earnings. The Company is currently evaluating the impact on our consolidated results of
operations and financial position.

In September 2009, the FASB ratified authoritative guidance relating to Revenue
Recognition, which is effective for fiscal years beginning after June 15, 2010 and may be applied retrospectively or prospectively for new or materially modified arrangements with early adoption permitted. The guidance provides greater ability
to separate and allocate arrangement consideration in a multiple element revenue arrangement. In addition, it will require the use of estimated selling price to allocate arrangement considerations, therefore eliminating the use of the residual
method of accounting. The Company is currently evaluating the impact on our consolidated results of operations and financial position.



|Item 7A. | Quantitative and Qualitative Disclosures about Market Risk
|-------- | ----------------------------------------------------------

Market risk is the potential loss arising from adverse changes in the financial markets, including interest rates and foreign currency
exchange rates.

Interest Rate Risk

Our exposure to interest rate risk relates primarily to our money market funds and current and long-term marketable debt securities portfolio. Additionally, if we were to utilize amounts under our Credit
Facility, we could be exposed to interest rate risk. Our current and long-term marketable debt securities classified as available for sale and trading consist of auction-rate securities. Our investments in marketable
securities are governed by our investment policy, which has been approved by our Board of Directors. Our investment policy seeks to preserve the value of capital, consistent with maximizing return on the Companys investment, while maintaining
adequate liquidity. To achieve this objective, we maintain our portfolio in a variety of high credit quality debt securities. Generally, our interest rate risk with respect to these investments is limited due to yields earned, which approximate
current interest rates. We attempt to mitigate default risk by maintaining our portfolio investments in diversified, high-quality investment grade securities with limited time to maturity. We constantly monitor our investment portfolio and position
our portfolio to respond appropriately to a reduction in credit rating of any investment issuer, guarantor or depository.

As
of December 31, 2009 and December 31, 2008, we have no other assets or liabilities that have significant interest rate sensitivity.

Investment Risk

At December 31, 2009, we had publicly traded equity
securities totaling $4.5 million included in long-term marketable securities. The fair value of our investments are subject to significant fluctuations due to the volatility of the stock market, changes in general economic conditions and changes in
the financial condition of the Companies we invest in. Based on the fair value of the publicly traded equity securities we held at December 31, 2009, an assumed 25%, 40% and 50% adverse change in the market prices of these securities would
result in a corresponding decline in total fair value of approximately $1.1 million, $1.8 million and $2.2 million, respectively. Any decline in value below our original investments will be evaluated to determine if the decline in value is
considered temporary or other-than-temporary. An other-than-temporary decline in fair value would be included as a charge to earnings.

Beginning in 2008 and continuing into 2009, the securities and credit markets have been experiencing severe volatility and disturbance, increasing risk with respect to certain of our financial assets. At December 31, 2008, the Company
determined that the market for its auction-rate securities was inactive. That determination was made considering that there are very few observable transactions for the auction-rate securities or similar securities, the prices for transactions that
have occurred are not current, and the observable prices for those transactionsto the extent they existvary substantially either over time or among market makers, thus reducing the potential usefulness of those observations.



96



---

##### Table of Contents

In January 2008, the Company chose to reduce its exposure to auction-rate securities and
ceased all purchases of auction-rate securities effective February 1, 2008, prior to when we began to experience failed auctions. There were no realized holding gains or losses resulting from the sales of our auction-rate securities during the
twelve months ended December 31, 2008.

The underlying assets of our auction-rate securities are student loans. Student
loans are insured by either the Federal Family Education Loan Program, or FFELP, or a combination of FFELP and other monocline insurers such as Ambac Assurance Corp., or AMBAC, and MBIA Insurance Corp., or MBIA. As of February 19, 2010, MBIA
was rated Ba3 by Moodys and BB- by Standard and Poors. AMBAC was rated Ca by Moodys and CC by Standard and Poors.

If uncertainties in the credit and capital markets continue, these markets deteriorate further or we experience any additional cover rating downgrades on any investments in our portfolio (including on our
auction-rate securities), we may incur additional impairments in future periods, which could negatively affect our financial condition, cash flow or reported earnings. Any of these events could materially affect our results of operations, financial
condition, and cash flows. In the event we need to access these funds, we could be required to sell these securities at an amount below our original purchase value. However, based on our ability to access our cash and cash equivalents and our other
liquid investments, and our expected operating cash flows, we do not expect to be required to sell these securities at a loss. However, there can be no assurance that we will not have to sell these securities at a loss.

Foreign Currency Risk

While all of our revenues are within the United States and denominated in U.S. dollars, we purchase Lidoderm®, in U.S. dollars, from Teikoku Seiyaku Co., Ltd., a Japanese manufacturer. As part of the purchase agreement with Teikoku, there is a price adjustment feature that
prevents the cash payment in U.S. dollars from falling outside of a certain pre-defined range in Japanese yen even if the spot rate is outside of that range.

A 10% change in foreign currency exchange rates would not have a material impact on our financial condition, results of operations or cash flows.

Inflation

We do not believe that inflation has had a significant impact on our revenues or operations.



|Item 8. | Financial Statements and Supplementary Data
|------- | -------------------------------------------

The information required by this item is contained in the financial statements set forth in Item 15(a) under the caption
Consolidated Financial Statements as part of this Annual Report on Form 10-K.



|Item 9. | Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
|------- | ------------------------------------------------------------------------------------

Not applicable.



|Item 9A. | Controls and Procedures
|-------- | -----------------------

(a) Evaluation of Disclosure Controls and Procedures

The Companys management, with the participation of the Companys Chief Executive Officer and Chief Financial Officer, has
evaluated the effectiveness of the Companys disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, as of December 31, 2009. Based on that evaluation, the Companys
Chief Executive Officer and Chief Financial Officer concluded that the Companys disclosure controls and procedures were effective as of December 31, 2009.



97



---

##### Table of Contents

(b) Managements Report on Internal Control over Financial Reporting

The report of management of the Company regarding internal control over financial reporting is set forth in Item 15(a) of
this Annual Report on Form 10-K under the caption Managements Report on Internal Control over Financial Reporting and incorporated herein by reference.

(c) Attestation Report of Independent Registered Public Accounting Firm

The attestation report of the Companys independent registered public accounting firm regarding internal control over financial reporting is set forth in Item 15(a) of this Annual Report on Form 10-K under the caption Report
of Independent Registered Public Accounting Firm and incorporated herein by reference.

(d) Changes in Internal
Control over Financial Reporting

There were no changes in the Companys internal control over financial reporting
during the fourth quarter of 2009 that have materially affected, or are reasonably likely to materially affect, the Companys internal control over financial reporting.



|Item 9B. | Other Information
|-------- | -----------------

On February 24, 2010, the Board of Directors approved amended and restated by-laws (the Bylaws) which provides for the removal of certain provisions relating to Kelso & Company
(referred to as Kelso) and its affiliates and Algos Pharmaceutical Corporation (referred to as Algos). Kelso and its affiliates and certain former members of management held an interest in Endo Pharma LLC, which was formed in connection with our
acquisition of Algos in 2000. Endo Pharma LLC was a limited liability company that is no longer affiliated with the Company but had historically held significant portions of our common stock.

The Bylaws, as amended and restated, are filed as Exhibit 3.2 to the Annual Report on Form 10-K.

PART III



|Item 10. | Directors, Executive Officers and Corporate Governance
|-------- | ------------------------------------------------------

Directors

The information
concerning our directors required under this Item is incorporated herein by reference from our proxy statement, which will be filed with the Securities and Exchange Commission, relating to our 2010 Annual Meeting of Stockholders (referred to as our
2010 Proxy Statement).

Executive Officers

For information concerning Endos executive officers, see Item 1. BusinessExecutive Officers of the Registrant and our 2010 Proxy Statement.

Code of Ethics

The
information concerning our Code of Conduct is incorporated herein by reference from our 2010 Proxy Statement.

Audit Committee

The information concerning our Audit Committee is incorporated herein by reference from our 2010 Proxy Statement.



98



---

##### Table of Contents

Audit Committee Financial Experts

The information concerning our Audit Committee Financial Experts is incorporated herein by reference from our 2010 Proxy Statement.



|Item 11. | Executive Compensation
|-------- | ----------------------

The information required under this Item is incorporated herein by reference from our 2010 Proxy Statement.



|Item 12. | Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
|-------- | ----------------------------------------------------------------------------------------------

Equity Compensation Plan Information.The following information relates to plans in effect as of
December 31, 2009 under which equity securities of Endo may be issued to employees and directors. Although the Endo Pharmaceuticals Holdings Inc. 2000, 2004 and 2007 Stock Incentive Plans provide that stock options may be granted there under to
non-employee consultants, Endo has never granted any such options to any such consultants.



|                                                             |  |                                                                                         |  |                                                                         |     |  |                                                                                                                                      
|------------------------------------------------------------ |  | --------------------------------------------------------------------------------------- |  | ----------------------------------------------------------------------- | --- |  | -------------------------------------------------------------------------------------------------------------------------------------
|                                                             |  | Column A                                                                                |  | Column B                                                                |     |  | Column C                                                                                                                             
|Plan Category                                                |  | Number of securitiesto be issued uponexercise ofoutstanding options,warrants and rights |  | Weighted-averageexercise price ofoutstandingoptions,warrants and rights |     |  | Number of securities remainingavailable for future issuanceunder equity compensationplans
(excluding securitiesreflected in Column A)
|Equity compensation plans approved by security holders       |  |                                                                                         |  |                                                                         |     |  |                                                                                                                                      
|Endo Pharmaceuticals Holdings Inc. 2000 Stock Incentive Plan |  | 947,355                                                                                 |  | 18.24                                                                   |     |  | 114,004                                                                                                                              
|Endo Pharmaceuticals Holdings Inc. 2004 Stock Incentive Plan |  | 2,886,001                                                                               |  | 25.07                                                                   |     |  | 979,681                                                                                                                              
|Endo Pharmaceuticals Holdings Inc. 2007 Stock Incentive Plan |  | 2,692,423                                                                               |  | 21.52                                                                   | (1) |  | 4,164,565                                                                                                                            



|(1) | Excludes shares of restricted stock units outstanding
|--- | -----------------------------------------------------

Equity compensation plans not approved by security holders

43,500 restricted stock units and 66,503
non-qualified stock options were granted to an executive officer of the Company as an inducement to commence employment with the Company. The restricted stock units and non-qualified stock options were granted outside of the 2007 Stock Incentive
Plan but are subject to the terms and conditions of the 2007 Stock Incentive Plan and the applicable award agreements. In accordance with NASDAQ rules, these awards were not required to be approved by the Companys shareholders. The restricted
stock units and stock options vest (and, in the case of the options, become exercisable) at a rate of 25% on each of the first four anniversaries of the date of grant.

The other information required under this Item is incorporated herein by reference from our 2010 Proxy Statement.



|Item 13. | Certain Relationships and Related Transactions, and Director Independence
|-------- | -------------------------------------------------------------------------

The information required under this Item is incorporated herein by reference from our 2010 Proxy Statement.



99



---

##### Table of Contents

|Item 14. | Principal Accountant Fees and Services
|-------- | --------------------------------------

Information about the fees for 2009 and 2008 for professional services rendered by our independent registered public accounting firm is
incorporated herein by reference from our 2010 Proxy Statement. Our Audit Committees policy on pre-approval of audit and permissible non-audit services of our independent registered public accounting firm is incorporated by reference from our
2010 Proxy Statement.

PART IV



|Item 15. | Exhibits, Financial Statement Schedules
|-------- | ---------------------------------------

Documents filed as part of this Annual Report on Form 10-K



|1. | Consolidated Financial Statements: See accompanying Index to Consolidated Financial Statements.
|-- | -----------------------------------------------------------------------------------------------



|2. | Consolidated Financial Statement Schedule:
|-- | ------------------------------------------

SCHEDULE IIVALUATION AND QUALIFYING ACCOUNTS

(in thousands)



|                                 |  |                              |       |                             |   |                       |  |   |                        |   |  |   |      
|-------------------------------- |  | ---------------------------- | ----- | --------------------------- | - | --------------------- |  | - | ---------------------- | - |  | - | -----
|                                 |  | Balance atBeginning ofPeriod |       | Additions,Costs andExpenses |   | Deductions,Write-offs |  |   | Balanceat Endof Period
|Allowance For Doubtful Accounts: |  |                              |       |                             |   |                       |  |   |                        |   |  |   |      
|Year Ended December 31, 2007     |  | $                            | 1,475 |                             | $ |                      |  | $ | (10                    | ) |  | $ | 1,465
|                                 |  |                              |       |                             |   |                       |  |   |                        |   |  |   |      
|Year Ended December 31, 2008     |  | $                            | 1,465 |                             | $ |                      |  | $ |                       |   |  | $ | 1,465
|                                 |  |                              |       |                             |   |                       |  |   |                        |   |  |   |      
|Year Ended December 31, 2009     |  | $                            | 1,465 |                             | $ |                      |  | $ | (442                   | ) |  | $ | 1,023
|                                 |  |                              |       |                             |   |                       |  |   |                        |   |  |   |      



All other financial statement schedules have been omitted because they are not applicable or the required information is included in the
Consolidated Financial Statements or notes thereto.



|3. | Exhibits: The information called for by this item is incorporated by reference to the Exhibit Index of this Report.
|-- | -------------------------------------------------------------------------------------------------------------------



100



---

##### Table of Contents

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report
to be signed on its behalf by the undersigned, thereunto duly authorized.



|                                                |  |                                       
|----------------------------------------------- |  | --------------------------------------
|ENDO PHARMACEUTICALS HOLDINGS INC. (Registrant)
|                                                | 
|                                                |  | /s/    DAVID P.
HOLVECK               
|Name:                                           |  | David P. Holveck                      
|Title:                                          |  | President and Chief Executive Officer,

Date: February 26, 2010

Pursuant to the requirements of the Securities
Exchange of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.



|                                         |  |                                                   |  |                                                                                       |  |                  
|---------------------------------------- |  | ------------------------------------------------- |  | ------------------------------------------------------------------------------------- |  | -----------------
|Signature                                |  | Title                                             |  | Date                                                                                 
|/S/    DAVID P.
HOLVECK David P. Holveck |  | President and Chief Executive Officer             |  | February 26, 2010                                                                    
|                                         |  |                                                  
|/S/    ALAN G.
LEVIN Alan G. Levin       |  | Executive Vice President, Chief Financial Officer |  | February 26, 2010                                                                    
|                                         |  |                                                  
|* Roger H. Kimmel                        |  | Chairman and Director                             |  | February 26, 2010                                                                    
|                                         |  |                                                  
|* John J. Delucca                        |  | Director                                          |  | February 26, 2010                                                                    
|                                         |  |                                                  
|* Nancy J. Hutson, Ph.D.                 |  | Director                                          |  | February 26, 2010                                                                    
|                                         |  |                                                  
|* Michael Hyatt                          |  | Director                                          |  | February 26, 2010                                                                    
|                                         |  |                                                  
|* Clive A. Meanwell, M.D., Ph.D.         |  | Director                                          |  | February 26, 2010                                                                    
|                                         |  |                                                  
|* William P. Montague                    |  | Director                                          |  | February 26, 2010                                                                    
|                                         |  |                                                  
|* Joseph C. Scodari                      |  | Director                                          |  | February 26, 2010                                                                    
|                                         |  |                                                  
|* William F. Spengler                    |  | Director                                          |  | February 26, 2010                                                                    
|                                         |  |                                                   | 
|*By:                                     |  | /s/    CAROLINE B. MANOGUE Caroline B. Manogue    |  | Attorney-in-fact, pursuant to a Power ofAttorney filed with this Report as Exhibit 24 |  | February 26, 2010



101



---

##### Table of Contents

INDEX TO FINANCIAL STATEMENTS



|                                                                                                                               |  |         
|------------------------------------------------------------------------------------------------------------------------------ |  | --------
|                                                                                                                               |  | Page    
|Managements Report on Internal Control Over Financial Reporting                                                               |  | F-2     
|Reports of Independent Registered Public Accounting Firm                                                                       |  | F-3, F-4
|Consolidated Balance Sheets as of December 31, 2009 and 2008                                                                   |  | F-5     
|Consolidated Statements of Operations for the Years Ended December 31, 2009, 2008 and
2007                                     |  | F-6     
|Consolidated Statements of Stockholders Equity and Comprehensive Income for the Years Ended December 31,
 2009, 2008 and 2007 |  | F-7     
|Consolidated Statements of Cash Flows for the Years Ended December 31, 2009, 2008 and
2007                                     |  | F-8     
|Notes to Consolidated Financial Statements for the Years Ended December 31, 2009, 2008 and 2007                                |  | F-10    



F-1



---

##### Table of Contents

MANAGEMENTS REPORT ON INTERNAL CONTROL OVER FINANCIAL
REPORTING

The management of Endo Pharmaceuticals Holdings Inc. is responsible for establishing and maintaining adequate
internal control over financial reporting as defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended. Endo Pharmaceuticals Holdings Inc.s internal control system was designed to provide reasonable
assurance to the Companys management and board of directors regarding the preparation and fair presentation of its published financial statements.

All internal control systems, no matter how well designed, have inherent limitations. Therefore, even those systems determined to be effective can provide only reasonable assurance with respect to
financial statement preparation and presentation.

Endo Pharmaceuticals Holdings Inc.s management assessed the
effectiveness of the Companys internal control over financial reporting as of December 31, 2009. In making this assessment, it used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in
Internal Control-Integrated Framework. Based on our assessment we believe that, as of December 31, 2009, the Companys internal control over financial reporting is effective based on those criteria.

Endo Pharmaceuticals Holdings Inc.s independent registered public accounting firm has issued its report on the effectiveness of the
Companys internal control over financial reporting as of December 31, 2009. This report appears on page F-4.



|                                                      
|------------------------------------------------------
|/s/ DAVID P. HOLVECK                                  
|David P. Holveck President and
Chief Executive Officer
|                                                      
|/s/ ALAN G. LEVIN                                     
|Alan G. Levin                                         
|Executive Vice President, Chief Financial Officer     

February 26, 2010



F-2



---

##### Table of Contents

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of

Endo
Pharmaceuticals Holdings Inc.

Chadds Ford, Pennsylvania

We have audited the accompanying consolidated balance sheets of Endo Pharmaceuticals Holdings Inc. and subsidiaries (the Company) as of December 31, 2009 and 2008, and the related
consolidated statements of operations, stockholders equity and comprehensive income, and cash flows for each of the three years in the period ended December 31, 2009. Our audits also included the financial statement schedule listed
in the Index at Item 15. These financial statements and financial statement schedule are the responsibility of the Companys management. Our responsibility is to express an opinion on the financial statements and financial
statement schedule based on our audits.

We conducted our audits in accordance with the standards of the Public Company
Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on
a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, such
consolidated financial statements present fairly, in all material respects, the financial position of Endo Pharmaceuticals Holdings Inc. and subsidiaries as of December 31, 2009 and 2008, and the results of their operations and their cash flows
for each of the three years in the period ended December 31, 2009, in conformity with accounting principles generally accepted in the United States of America. Also, in our opinion, such financial statement schedule, when considered in
relation to the basic consolidated financial statements taken as a whole, presents fairly, in all material respects, the information set forth therein.

As discussed in Note 2 to the consolidated financial statements, the Company adopted the new authoritative guidance on convertible debt instruments that may be settled in cash or other assets upon
conversion, effective January 1, 2009.

We have also audited, in accordance with the standards of the Public Company
Accounting Oversight Board (United States), the Companys internal control over financial reporting as of December 31, 2009, based on the criteria established in Internal ControlIntegrated Framework issued by the Committee of
Sponsoring Organizations of the Treadway Commission and our report dated February 26, 2010 expressed an unqualified opinion on the Companys internal control over financial reporting.



|                                            
|--------------------------------------------
|/s/ DELOITTE & TOUCHE LLP                   
|                                            
|Philadelphia, Pennsylvania February 26, 2010



F-3



---

##### Table of Contents

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of

Endo
Pharmaceuticals Holdings Inc.

Chadds Ford, Pennsylvania

We have audited the internal control over financial reporting of Endo Pharmaceuticals Holdings Inc. and subsidiaries (the Company) as of December 31, 2009, based on criteria established
in Internal ControlIntegrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission. The Companys management is responsible for maintaining effective internal control over financial
reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Managements Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion
on the Companys internal control over financial reporting based on our audit.

We conducted our audit in accordance with
the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was
maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness
of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A companys internal control over financial reporting is a process designed by, or under the supervision of, the companys
principal executive and principal financial officers, or persons performing similar functions, and effected by the companys board of directors, management, and other personnel to provide reasonable assurance regarding the reliability of
financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A companys internal control over financial reporting includes those policies and procedures
that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as
necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors
of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the companys assets that could have a material effect on the financial statements.

Because of the inherent limitations of internal control over financial reporting, including the possibility of collusion or
improper management override of controls, material misstatements due to error or fraud may not be prevented or detected on a timely basis. Also, projections of any evaluation of the effectiveness of the internal control over financial reporting
to future periods are subject to the risk that the controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of
December 31, 2009, based on the criteria established in Internal ControlIntegrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated
financial statements and financial statement schedule as of and for the year ended December 31, 2009 of the Company and our report dated February 26, 2010 expressed an unqualified opinion on those financial statements and financial
statement schedule and included an explanatory paragraph relating to the adoption of the new authoritative guidance on convertible debt instruments that may be settled in cash or other assets upon conversion, effective January 1, 2009.



|                                            
|--------------------------------------------
|/s/ DELOITTE & TOUCHE LLP                   
|                                            
|Philadelphia, Pennsylvania February 26, 2010



F-4



---

##### Table of Contents

ENDO PHARMACEUTICALS HOLDINGS INC.

CONSOLIDATED BALANCE SHEETS

DECEMBER 31, 2009 AND 2008

(In thousands, except share and per share
data)



|                                                                                                                                                                                             |  |      |           |   |      |   |           |  
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ---- | --------- | - | ---- | - | --------- | -
|                                                                                                                                                                                             |  | 2009 |           |   | 2008 |  
|ASSETS                                                                                                                                                                                       |  |      |           |   |      |   |           |  
|CURRENT ASSETS:                                                                                                                                                                              |  |      |           |   |      |   |           |  
|Cash and cash equivalents                                                                                                                                                                    |  | $    | 708,462   |   |      | $ | 775,693   |  
|Restricted cash                                                                                                                                                                              |  |      | 1,515     |   |      |   |          |  
|Marketable securities                                                                                                                                                                        |  |      | 25,275    |   |      |   | 6,500     |  
|Accounts receivable, net of allowance of $1,023 and $1,465 at December 31, 2009 and 2008                                                                                                     |  |      | 323,501   |   |      |   | 246,326   |  
|Income taxes receivable                                                                                                                                                                      |  |      | 13,762    |   |      |   | 1,600     |  
|Inventories                                                                                                                                                                                  |  |      | 84,893    |   |      |   | 80,656    |  
|Prepaid expenses and other current assets                                                                                                                                                    |  |      | 17,081    |   |      |   | 24,515    |  
|Auction-rate Securities Rights, at fair value                                                                                                                                                |  |      | 15,659    |   |      |   |          |  
|Deferred income taxes                                                                                                                                                                        |  |      | 90,433    |   |      |   | 48,404    |  
|                                                                                                                                                                                             |  |      |           |   |      |   |           |  
|Total current assets                                                                                                                                                                         |  |      | 1,280,581 |   |      |   | 1,183,694 |  
|                                                                                                                                                                                             |  |      |           |   |      |   |           |  
|MARKETABLE SECURITIES                                                                                                                                                                        |  |      | 211,792   |   |      |   | 239,204   |  
|AUCTION-RATE SECURITIES RIGHTS, at fair value                                                                                                                                                |  |      |          |   |      |   | 27,321    |  
|PROPERTY AND EQUIPMENT, Net                                                                                                                                                                  |  |      | 47,529    |   |      |   | 44,378    |  
|GOODWILL                                                                                                                                                                                     |  |      | 302,534   |   |      |   | 181,079   |  
|OTHER INTANGIBLES, Net                                                                                                                                                                       |  |      | 609,909   |   |      |   | 205,055   |  
|OTHER ASSETS                                                                                                                                                                                 |  |      | 36,458    |   |      |   | 28,002    |  
|                                                                                                                                                                                             |  |      |           |   |      |   |           |  
|TOTAL ASSETS                                                                                                                                                                                 |  | $    | 2,488,803 |   |      | $ | 1,908,733 |  
|                                                                                                                                                                                             |  |      |           |   |      |   |           |  
|LIABILITIES AND STOCKHOLDERS EQUITY                                                                                                                                                         |  |      |           |   |      |   |           |  
|CURRENT LIABILITIES:                                                                                                                                                                         |  |      |           |   |      |   |           |  
|Accounts payable                                                                                                                                                                             |  | $    | 176,076   |   |      | $ | 160,468   |  
|Accrued expenses                                                                                                                                                                             |  |      | 286,606   |   |      |   | 226,005   |  
|Income taxes payable                                                                                                                                                                         |  |      | 9,498     |   |      |   |          |  
|                                                                                                                                                                                             |  |      |           |   |      |   |           |  
|Total current liabilities                                                                                                                                                                    |  |      | 472,180   |   |      |   | 386,473   |  
|                                                                                                                                                                                             |  |      |           |   |      |   |           |  
|DEFERRED INCOME TAXES                                                                                                                                                                        |  |      | 49,180    |   |      |   | 1,270     |  
|ACQUISITION-RELATED CONTINGENT CONSIDERATION                                                                                                                                                 |  |      | 58,470    |   |      |   |          |  
|CONVERTIBLE SENIOR SUBORDINATED NOTES DUE 2015                                                                                                                                               |  |      | 260,279   |   |      |   | 243,150   |  
|NON-RECOURSE NOTES PAYABLE                                                                                                                                                                   |  |      | 62,255    |   |      |   |          |  
|OTHER LIABILITIES                                                                                                                                                                            |  |      | 89,028    |   |      |   | 70,729    |  
|COMMITMENTS AND CONTINGENCIES (NOTE 14)                                                                                                                                                      |  |      |           |   |      |   |           |  
|STOCKHOLDERS EQUITY:                                                                                                                                                                        |  |      |           |   |      |   |           |  
|Preferred Stock, $0.01 par value; 40,000,000 shares authorized; none issued                                                                                                                  |  |      |          |   |      |   |          |  
|Common Stock, $0.01 par value; 350,000,000 shares authorized; 134,986,612 and 134,302,004 shares issued; 117,270,309 and
116,585,701 outstanding at December 31, 2009 and 2008, respectively |  |      | 1,350     |   |      |   | 1,343     |  
|Additional paid-in capital                                                                                                                                                                   |  |      | 817,467   |   |      |   | 793,285   |  
|Retained earnings                                                                                                                                                                            |  |      | 1,105,291 |   |      |   | 838,955   |  
|Accumulated other comprehensive loss                                                                                                                                                         |  |      | (1,881    | ) |      |   | (1,656    | )
|Treasury stock, 17,716,303 shares at December 31, 2009 and December 31, 2008                                                                                                                 |  |      | (424,816  | ) |      |   | (424,816  | )
|                                                                                                                                                                                             |  |      |           |   |      |   |           |  
|Total stockholders equity                                                                                                                                                                   |  |      | 1,497,411 |   |      |   | 1,207,111 |  
|                                                                                                                                                                                             |  |      |           |   |      |   |           |  
|TOTAL LIABILITIES AND STOCKHOLDERS EQUITY                                                                                                                                                   |  | $    | 2,488,803 |   |      | $ | 1,908,733 |  
|                                                                                                                                                                                             |  |      |           |   |      |   |           |  

See notes to consolidated financial statements.



F-5



---

##### Table of Contents

ENDO PHARMACEUTICALS HOLDINGS INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

YEARS ENDED DECEMBER 31, 2009, 2008 AND 2007

(In thousands, except per
share data)



|                                              |  |      |           |   |      |   |           |      |  |   |           |  
|--------------------------------------------- |  | ---- | --------- | - | ---- | - | --------- | ---- |  | - | --------- | -
|                                              |  | 2009 |           |   | 2008 |   |           | 2007 | 
|REVENUES:                                     |  |      |           |   |      |   |           |      |  |   |           |  
|Net sales                                     |  | $    | 1,451,577 |   |      | $ | 1,260,536 |      |  | $ | 1,085,608 |  
|Royalty and other revenue                     |  | $    | 9,264     |   |      |   |          |      |  |   |          |  
|                                              |  |      |           |   |      |   |           |      |  |   |           |  
|TOTAL REVENUES                                |  | $    | 1,460,841 |   |      | $ | 1,260,536 |      |  | $ | 1,085,608 |  
|                                              |  |      |          
|COSTS AND EXPENSES:                           |  |      |           |   |      |   |           |      |  |   |           |  
|Cost of revenues                              |  |      | 375,058   |   |      |   | 267,235   |      |  |   | 217,369   |  
|Selling, general and administrative           |  |      | 534,523   |   |      |   | 488,063   |      |  |   | 411,869   |  
|Research and development                      |  |      | 185,317   |   |      |   | 110,211   |      |  |   | 138,255   |  
|Acquisition-related items                     |  |      | (93,081   | ) |      |   |          |      |  |   |          |  
|Impairment of other intangible assets         |  |      | 69,000    |   |      |   | 8,083     |      |  |   | 889       |  
|Purchased in-process research and development |  |      |          |   |      |   | (530      | )    |  |   |          |  
|                                              |  |      |           |   |      |   |           |      |  |   |           |  
|OPERATING INCOME                              |  |      | 390,024   |   |      |   | 387,474   |      |  |   | 317,226   |  
|                                              |  |      |           |   |      |   |           |      |  |   |           |  
|INTEREST EXPENSE (INCOME), NET                |  |      | 37,718    |   |      |   | (6,107    | )    |  |   | (35,426   | )
|OTHER (INCOME) EXPENSE, NET                   |  |      | (3,329    | ) |      |   | 1,753     |      |  |   | (598      | )
|GAIN ON EXTINGUISHMENT OF DEBT, NET           |  |      | (4,025    | ) |      |   |          |      |  |   |          |  
|                                              |  |      |           |   |      |   |           |      |  |   |           |  
|INCOME BEFORE INCOME TAX                      |  |      | 359,660   |   |      |   | 391,828   |      |  |   | 353,250   |  
|INCOME TAX                                    |  |      | 93,324    |   |      |   | 136,492   |      |  |   | 125,810   |  
|                                              |  |      |           |   |      |   |           |      |  |   |           |  
|NET INCOME                                    |  | $    | 266,336   |   |      | $ | 255,336   |      |  | $ | 227,440   |  
|                                              |  |      |           |   |      |   |           |      |  |   |           |  
|NET INCOME PER SHARE:                         |  |      |           |   |      |   |           |      |  |   |           |  
|Basic                                         |  | $    | 2.27      |   |      | $ | 2.07      |      |  | $ | 1.70      |  
|Diluted                                       |  | $    | 2.27      |   |      | $ | 2.06      |      |  | $ | 1.69      |  
|WEIGHTED AVERAGE SHARES:                      |  |      |           |   |      |   |           |      |  |   |           |  
|Basic                                         |  |      | 117,112   |   |      |   | 123,248   |      |  |   | 133,903   |  
|Diluted                                       |  |      | 117,515   |   |      |   | 123,720   |      |  |   | 134,525   |  

See notes to
consolidated financial statements.



F-6



---

##### Table of Contents

ENDO PHARMACEUTICALS HOLDINGS INC.

CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY AND COMPREHENSIVE INCOME

YEARS ENDED DECEMBER 31, 2009, 2008 AND 2007

(In
thousands, except share data)



|                                                                                  |  |                 |   |                          |        |       |                  |   |          |                                            |  |   |                |   |  |                          |         |   |                     |             |   |  |   |          |   |  |   |           |   |  |   |         |  
|--------------------------------------------------------------------------------- |  | --------------- | - | ------------------------ | ------ | ----- | ---------------- | - | -------- | ------------------------------------------ |  | - | -------------- | - |  | ------------------------ | ------- | - | ------------------- | ----------- | - |  | - | -------- | - |  | - | --------- | - |  | - | ------- | -
|                                                                                  |  | Common Stock    |   | AdditionalPaid-inCapital |        |       | RetainedEarnings |   |          | AccumulatedOtherComprehensiveIncome (Loss) |  |   | Treasury Stock |   |  | TotalStockholdersEquity |         |   | ComprehensiveIncome |            
|                                                                                  |  | Number OfShares |   |                          | Amount |       |                  |   |          | Number ofShares                            |  |   | Amount         |   |  |                         
|BALANCE, January 1, 2007                                                          |  | 133,600,959     |   |                          | $      | 1,336 |                  | $ | 679,704  |                                            |  | $ | 358,831        |   |  | $                        | 1,117   |   |                     |            |   |  | $ |         |   |  | $ | 1,040,988 |   |  |   |        |  
|Estimated tax sharing distributions due to Endo Pharma LLC                        |  |                |   |                          |        |      |                  |   | (506     | )                                          |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | (506      | ) |  |   |        |  
|Compensation related to stock-based awards                                        |  |                |   |                          |        |      |                  |   | 13,928   |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | 13,928    |   |  |   |        |  
|Grants of restricted stock awards                                                 |  | 13,572          |   |                          |        |      |                  |   |         |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   |           |   |  |   |        |  
|Exercise of options                                                               |  | 530,462         |   |                          |        | 5     |                  |   | 7,726    |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | 7,731     |   |  |   |        |  
|Tax benefits of stock awards                                                      |  |                |   |                          |        |      |                  |   | 3,453    |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | 3,453     |   |  |   |        |  
|Cumulative effect from the adoption of ASC 740                                    |  |                |   |                          |        |      |                  |   |         |                                            |  |   | (2,652         | ) |  |                          |        |   |                     |            |   |  |   |         |   |  |   | (2,652    | ) |  |   |        |  
|Unrealized gain on securities, net of tax                                         |  |                |   |                          |        |      |                  |   |         |                                            |  |   |               |   |  |                          | 1,908   |   |                     |            |   |  |   |         |   |  |   | 1,908     |   |  |   | 1,908   |  
|Net income                                                                        |  |                |   |                          |        |      |                  |   |         |                                            |  |   | 227,440        |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | 227,440   |   |  |   | 227,440 |  
|                                                                                  |  |                 |   |                          |        |       |                  |   |          |                                            |  |   |                |   |  |                          |         |   |                     |             |   |  |   |          |   |  |   |           |   |  |   |         |  
|Comprehensive income                                                              |  |                |   |                          |        |      |                  |   |         |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   |          |   |  | $ | 229,348 |  
|                                                                                  |  |                 |   |                          |        |       |                  |   |          |                                            |  |   |                |   |  |                          |         |   |                     |             |   |  |   |          |   |  |   |           |   |  |   |         |  
|BALANCE, DECEMBER 31, 2007                                                        |  | 134,144,993     |   |                          | $      | 1,341 |                  | $ | 704,305  |                                            |  | $ | 583,619        |   |  | $                        | 3,025   |   |                     |            |   |  | $ |         |   |  | $ | 1,292,290 |   |  |   |        |  
|                                                                                  |  |                 |   |                          |        |       |                  |   |          |                                            |  |   |                |   |  |                          |         |   |                     |             |   |  |   |          |   |  |   |           |   |  |   |         |  
|Estimated tax sharing distributions due to Endo Pharma LLC                        |  |                |   |                          |        |      |                  |   | 14       |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | 14        |   |  |   |        |  
|Compensation related to stock-based awards                                        |  |                |   |                          |        |      |                  |   | 16,934   |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | 16,934    |   |  |   |        |  
|Forfeiture of restricted stock awards                                             |  | (1,131          | ) |                          |        |      |                  |   |         |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   |          |   |  |   |        |  
|Exercise of options                                                               |  | 150,191         |   |                          |        | 2     |                  |   | 2,233    |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | 2,235     |   |  |   |        |  
|Tax benefits of stock awards                                                      |  |                |   |                          |        |      |                  |   | (92      | )                                          |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | (92       | ) |  |   |        |  
|Common stock issued                                                               |  | 7,951           |   |                          |        |      |                  |   | 185      |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | 185       |   |  |   |        |  
|Issuance of Convertible Senior Subordinated Notes due 2015, net of tax of $56,417 |  |                |   |                          |        |      |                  |   | 85,782   |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | 85,782    |   |  |   |        |  
|Sale of common stock warrants                                                     |  |                |   |                          |        |      |                  |   | 50,371   |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | 50,371    |   |  |   |        |  
|Purchase of common stock call options                                             |  |                |   |                          |        |      |                  |   | (107,607 | )                                          |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | (107,607  | ) |  |   |        |  
|Tax benefit of call options                                                       |  |                |   |                          |        |      |                  |   | 41,160   |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | 41,160    |   |  |   |        |  
|Treasury stock acquired                                                           |  |                |   |                          |        |      |                  |   |         |                                            |  |   |               |   |  |                          |        |   |                     | (17,716,303 | ) |  |   | (424,816 | ) |  |   | (424,816  | ) |  |   |        |  
|Unrealized gain on securities, net of tax                                         |  |                |   |                          |        |      |                  |   |         |                                            |  |   |               |   |  |                          | (31,098 | ) |                     |            |   |  |   |         |   |  |   | (31,098   | ) |  |   | (31,098 | )
|Reclassification due to other-than-temporary impairment                           |  |                |   |                          |        |      |                  |   |         |                                            |  |   |               |   |  |                          | 26,417  |   |                     |            |   |  |   |         |   |  |   | 26,417    |   |  |   | 26,417  |  
|Net income                                                                        |  |                |   |                          |        |      |                  |   |         |                                            |  |   | 255,336        |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | 255,336   |   |  |   | 255,336 |  
|                                                                                  |  |                 |   |                          |        |       |                  |   |          |                                            |  |   |                |   |  |                          |         |   |                     |             |   |  |   |          |   |  |   |           |   |  |   |         |  
|Comprehensive income                                                              |  |                |   |                          |        |      |                  |   |         |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   |          |   |  | $ | 250,655 |  
|                                                                                  |  |                 |   |                          |        |       |                  |   |          |                                            |  |   |                |   |  |                          |         |   |                     |             |   |  |   |          |   |  |   |           |   |  |   |         |  
|BALANCE, DECEMBER 31, 2008                                                        |  | 134,302,004     |   |                          | $      | 1,343 |                  | $ | 793,285  |                                            |  | $ | 838,955        |   |  | $                        | (1,656  | ) |                     | (17,716,303 | ) |  | $ | (424,816 | ) |  | $ | 1,207,111 |   |  |   |        |  
|                                                                                  |  |                 |   |                          |        |       |                  |   |          |                                            |  |   |                |   |  |                          |         |   |                     |             |   |  |   |          |   |  |   |           |   |  |   |         |  
|Compensation related to stock-based awards                                        |  |                |   |                          |        |      |                  |   | 19,593   |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | 19,593    |   |  |   |        |  
|Forfeiture of restricted stock awards                                             |  | (1,131          | ) |                          |        |      |                  |   |         |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   |          |   |  |   |        |  
|Exercise of options                                                               |  | 554,827         |   |                          |        | 6     |                  |   | 8,031    |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | 8,037     |   |  |   |        |  
|Tax benefits of stock awards                                                      |  |                |   |                          |        |      |                  |   | (3,693   | )                                          |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | (3,693    | ) |  |   |        |  
|Common stock issued                                                               |  | 130,912         |   |                          |        | 1     |                  |   | 251      |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | 252       |   |  |   |        |  
|Treasury stock acquired                                                           |  |                |   |                          |        |      |                  |   |         |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   |          |   |  |   |        |  
|Unrealized loss on securities, net of tax                                         |  |                |   |                          |        |      |                  |   |         |                                            |  |   |               |   |  |                          | (225    | ) |                     |            |   |  |   |         |   |  |   | (225      | ) |  |   | (225    | )
|Net income                                                                        |  |                |   |                          |        |      |                  |   |         |                                            |  |   | 266,336        |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   | 266,336   |   |  |   | 266,336 |  
|                                                                                  |  |                 |   |                          |        |       |                  |   |          |                                            |  |   |                |   |  |                          |         |   |                     |             |   |  |   |          |   |  |   |           |   |  |   |         |  
|Comprehensive income                                                              |  |                |   |                          |        |      |                  |   |         |                                            |  |   |               |   |  |                          |        |   |                     |            |   |  |   |         |   |  |   |          |   |  | $ | 266,111 |  
|                                                                                  |  |                 |   |                          |        |       |                  |   |          |                                            |  |   |                |   |  |                          |         |   |                     |             |   |  |   |          |   |  |   |           |   |  |   |         |  
|BALANCE, DECEMBER 31, 2009                                                        |  | 134,986,612     |   |                          | $      | 1,350 |                  | $ | 817,467  |                                            |  | $ | 1,105,291      |   |  | $                        | (1,881  | ) |                     | (17,716,303 | ) |  | $ | (424,816 | ) |  | $ | 1,497,411 |   |  |   |        |  
|                                                                                  |  |                 |   |                          |        |       |                  |   |          |                                            |  |   |                |   |  |                          |         |   |                     |             |   |  |   |          |   |  |   |           |   |  |   |         |  

See notes to consolidated financial statements.



F-7



---

##### Table of Contents

ENDO PHARMACEUTICALS HOLDINGS INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

YEARS ENDED DECEMBER 31, 2009, 2008 AND 2007

(In thousands)



|                                                                                  |  |      |          |   |      |   |          |      |  |   |          |  
|--------------------------------------------------------------------------------- |  | ---- | -------- | - | ---- | - | -------- | ---- |  | - | -------- | -
|                                                                                  |  | 2009 |          |   | 2008 |   |          | 2007 | 
|OPERATING ACTIVITIES:                                                             |  |      |          |   |      |   |          |      |  |   |          |  
|Net income                                                                        |  | $    | 266,336  |   |      | $ | 255,336  |      |  | $ | 227,440  |  
|Adjustments to reconcile net income to net cash provided by operating activities: |  |      |          |   |      |   |          |      |  |   |          |  
|Depreciation and amortization                                                     |  |      | 80,381   |   |      |   | 46,445   |      |  |   | 17,405   |  
|Stock-based compensation                                                          |  |      | 19,593   |   |      |   | 16,934   |      |  |   | 13,928   |  
|Amortization of deferred financing/debt issuance costs and premium/discount       |  |      | 19,503   |   |      |   | 13,833   |      |  |   | (1,114   | )
|Selling, general and administrative expenses paid in shares of common stock       |  |      | 251      |   |      |   | 185      |      |  |   |         |  
|Deferred income taxes                                                             |  |      | (36,395  | ) |      |   | 3,082    |      |  |   | (1,624   | )
|(Gain) loss on disposal of property and equipment                                 |  |      | (16      | ) |      |   | 143      |      |  |   | (495     | )
|Change in the fair value of acquisition-related contingent consideration          |  |      | (128,090 | ) |      |   |         |      |  |   |         |  
|Loss (gain) on auction-rate securities rights                                     |  |      | 11,662   |   |      |   | (27,321  | )    |  |   |         |  
|Unrealized (gain) loss on trading securities                                      |  |      | (15,222  | ) |      |   | 4,225    |      |  |   |         |  
|Gain on extinguishment of debt                                                    |  |      | (4,025   | ) |      |   |         |      |  |   |         |  
|Impairment of long-lived assets                                                   |  |      | 69,000   |   |      |   | 12,680   |      |  |   | 3,164    |  
|Purchased in-process research and development                                     |  |      |         |   |      |   | (530     | )    |  |   |         |  
|Other-than-temporary impairment of available-for-sale securities                  |  |      |         |   |      |   | 26,417   |      |  |   |         |  
|Changes in assets and liabilities which provided (used) cash:                     |  |      |          |   |      |   |          |      |  |   |          |  
|Accounts receivable                                                               |  |      | (62,584  | ) |      |   | 3,458    |      |  |   | 30,430   |  
|Inventories                                                                       |  |      | 12,920   |   |      |   | (11,428  | )    |  |   | (7,099   | )
|Note receivable                                                                   |  |      |         |   |      |   | (489     | )    |  |   | 86       |  
|Prepaid and other assets                                                          |  |      | 13,554   |   |      |   | (1,755   | )    |  |   | (3,347   | )
|Accounts payable                                                                  |  |      | 12,068   |   |      |   | (17,969  | )    |  |   | 52,496   |  
|Accrued expenses                                                                  |  |      | 34,112   |   |      |   | 40,561   |      |  |   | 22,884   |  
|Other liabilities                                                                 |  |      | 9,653    |   |      |   | 11,009   |      |  |   | 4,323    |  
|Income taxes receivable/payable                                                   |  |      | (7,295   | ) |      |   | (19,189  | )    |  |   | 7,265    |  
|                                                                                  |  |      |          |   |      |   |          |      |  |   |          |  
|Net cash provided by operating activities                                         |  |      | 295,406  |   |      |   | 355,627  |      |  |   | 365,742  |  
|                                                                                  |  |      |          |   |      |   |          |      |  |   |          |  
|INVESTING ACTIVITIES:                                                             |  |      |          |   |      |   |          |      |  |   |          |  
|Purchases of property and equipment                                               |  |      | (12,415  | ) |      |   | (17,428  | )    |  |   | (20,007  | )
|Purchases of available-for-sale securities                                        |  |      |         |   |      |   | (134,211 | )    |  |   | (806,409 | )
|Proceeds from sales of trading securities                                         |  |      | 23,750   |   |      |   | 975      |      |  |   |         |  
|Proceeds from sales of available-for-sale securities                              |  |      |         |   |      |   | 447,111  |      |  |   | 214,901  |  
|Proceeds from sale of property and equipment                                      |  |      |         |   |      |   | 27       |      |  |   | 162      |  
|Principal payments on note receivable                                             |  |      |         |   |      |   | 3,333    |      |  |   |         |  
|License fees                                                                      |  |      | (4,485   | ) |      |   | (85,000  | )    |  |   |         |  
|Acquisition, net of cash acquired                                                 |  |      | (250,359 | ) |      |   | (15,000  | )    |  |   |         |  
|Distribution of equity method investment                                          |  |      |         |   |      |   |         |      |  |   | 2,125    |  
|Other investments                                                                 |  |      | (2,000   | ) |      |   | (20,000  | )    |  |   | (5,300   | )
|                                                                                  |  |      |          |   |      |   |          |      |  |   |          |  
|Net cash (used in) provided by investing activities                               |  |      | (245,509 | ) |      |   | 179,807  |      |  |   | (614,528 | )
|                                                                                  |  |      |          |   |      |   |          |      |  |   |          |  
|FINANCING ACTIVITIES:                                                             |  |      |          |   |      |   |          |      |  |   |          |  
|Capital lease obligations repayments                                              |  |      | (250     | ) |      |   | (625     | )    |  |   | (1,118   | )
|Tax sharing payments to Endo Pharma LLC                                           |  |      |         |   |      |   | (671     | )    |  |   | (38,514  | )
|Tax benefits of stock awards                                                      |  |      | 717      |   |      |   | 307      |      |  |   | 2,927    |  
|Deferred financing fees                                                           |  |      | (5,162   | ) |      |   |         |      |  |   |         |  
|Exercise of Endo Pharmaceuticals Holdings Inc. Stock Options                      |  |      | 8,037    |   |      |   | 2,235    |      |  |   | 7,731    |  
|Principal payments on 6.25% convertible notes due July 2009                       |  |      | (71,990  | ) |      |   |         |      |  |   |         |  
|Principal payments on non-recourse notes payable                                  |  |      | (48,480  | ) |      |   |         |      |  |   |         |  
|Net proceeds from issuance of convertible senior subordinated notes due 2015      |  |      |         |   |      |   | 370,740  |      |  |   |         |  
|Purchase of hedge on convertible senior subordinated notes due 2015               |  |      |         |   |      |   | (107,607 | )    |  |   |         |  
|Sale of common stock warrants                                                     |  |      |         |   |      |   | 50,371   |      |  |   |         |  
|Purchase of common stock                                                          |  |      |         |   |      |   | (424,816 | )    |  |   |         |  
|                                                                                  |  |      |          |   |      |   |          |      |  |   |          |  
|Net cash used in financing activities                                             |  |      | (117,128 | ) |      |   | (110,066 | )    |  |   | (28,974  | )
|                                                                                  |  |      |          |   |      |   |          |      |  |   |          |  
|NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS                              |  |      | (67,231  | ) |      |   | 425,368  |      |  |   | (277,760 | )
|CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD                                    |  |      | 775,693  |   |      |   | 350,325  |      |  |   | 628,085  |  
|                                                                                  |  |      |          |   |      |   |          |      |  |   |          |  
|CASH AND CASH EQUIVALENTS, END OF PERIOD                                          |  | $    | 708,462  |   |      | $ | 775,693  |      |  | $ | 350,325  |  
|                                                                                  |  |      |          |   |      |   |          |      |  |   |          |  



F-8



---

##### Table of Contents

ENDO PHARMACEUTICALS HOLDINGS INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS(Continued)

YEARS ENDED DECEMBER 31, 2009, 2008 AND 2007

(In thousands)

|                                                                                                                                   |  |      |          |   |      |   |         |      |  |   |        
|---------------------------------------------------------------------------------------------------------------------------------- |  | ---- | -------- | - | ---- | - | ------- | ---- |  | - | -------
|                                                                                                                                   |  | 2009 |          |   | 2008 |   |         | 2007
|SUPPLEMENTAL INFORMATION:                                                                                                          |  |      |          |   |      |   |         |      |  |   |        
|Interest paid                                                                                                                      |  | $    | 19,265   |   |      | $ | 3,373   |      |  | $ | 117    
|                                                                                                                                   |  |      |          |   |      |   |         |      |  |   |        
|Income taxes paid                                                                                                                  |  | $    | 126,431  |   |      | $ | 142,660 |      |  | $ | 110,305
|                                                                                                                                   |  |      |          |   |      |   |         |      |  |   |        
|SCHEDULE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:                                                                           |  |      |          |   |      |   |         |      |  |   |        
|Purchase of property and equipment financed by capital leases                                                                      |  | $    | 235      |   |      | $ | 798     |      |  | $ | 419    
|Accrual for purchases of property and equipment                                                                                    |  | $    | 2,635    |   |      | $ | 4,211   |      |  | $ | 4,643  
|Settlement of note receivable                                                                                                      |  | $    |         |   |      | $ | (46,667 | )    |  | $ |       
|Acquisition of license rights                                                                                                      |  | $    |         |   |      | $ | 90,657  |      |  | $ |       
|Transfer of securities from available-for-sale to trading                                                                          |  | $    |         |   |      | $ | 228,633 |      |  | $ |       
|In connection with the purchase of all of the capital stock of Indevus Pharmaceuticals, Inc., liabilities were assumed as
follows: |  |      |          |   |      |   |         |      |  |   |        
|Fair value of assets acquired                                                                                                      |  | $    | 868,581  |   |      | $ |        |      |  | $ |       
|Cash paid for the capital stock                                                                                                    |  |      | (368,034 | ) |      | $ |        |      |  | $ |       
|Contingent consideration                                                                                                           |  |      | (172,860 | ) |      | $ |        |      |  | $ |       
|Liabilities assumed                                                                                                                |  | $    | 449,142  |   |      | $ |        |      |  | $ |       

See
notes to consolidated financial statements.



F-9



---

##### Table of Contents

ENDO PHARMACEUTICALS HOLDINGS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

YEARS ENDED DECEMBER 31, 2009, 2008 AND 2007

NOTE 1. Description of Business

Endo Pharmaceuticals Holdings Inc. (referred to as the Company or we) is a specialty pharmaceutical company. The Company,
through its wholly-owned subsidiary, Endo Pharmaceuticals Inc. (referred to as Endo or EPI), is engaged in the research, development, manufacturing, marketing and sale of branded and generic prescription pharmaceuticals used primarily to treat and
manage pain, overactive bladder, prostate and bladder cancer and the early onset of puberty in children, or central precocious puberty. The Company was incorporated on November 18, 1997 under the laws of the state of Delaware. The stock of Endo
is the only asset of the Company, and the Company has no other operations or business.

In the first quarter of 2009, we
acquired Indevus Pharmaceuticals (referred to as Indevus), a specialty pharmaceutical company engaged in the acquisition, development and commercialization of products to treat conditions in urology and endocrinology.

NOTE 2. Summary of Significant Accounting Policies

Principles of ConsolidationThe consolidated financial statements include the accounts of Endo Pharmaceuticals Holdings Inc. and its subsidiaries. All intercompany balances and transactions
have been eliminated.

ReclassificationsCertain prior period amounts in the Consolidated Balance Sheets,
Statements of Cash Flows and Statements of Operations have been reclassified to conform to the current period presentation.

Use of EstimatesThe preparation of our financial statements in conformity with accounting principles generally accepted in the United States of America requires us to make estimates and use assumptions that affect the reported
amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those
estimates. The most significant estimates made and assumptions used are in the determination of sales deductions for estimated chargebacks, rebates, sales incentives and allowances, certain royalties, distribution service fees, returns and losses;
inventory reserves; deferred taxes; contingencies; the valuation of stock-based compensation; the capitalization of and the selection of amortization periods for intangible assets with finite lives; fair value of acquisition-related contingent
consideration; and the assessment of the recoverability of long-lived and other intangible assets, including goodwill.

Customer, Product and Supplier ConcentrationWe sell our products directly to a limited number of large pharmacy chains and through a limited number of wholesale drug distributors who, in turn, supply products to pharmacies,
hospitals, governmental agencies and physicians. Net sales to customers who accounted for 10% or more of our net sales during the years ended December 31 were as follows:



|                               |  |      |   |  |      |   |  |      |  
|------------------------------ |  | ---- | - |  | ---- | - |  | ---- | -
|                               |  | 2009 |   |  | 2008 |   |  | 2007 |  
|Cardinal Health, Inc.          |  | 35   | % |  | 36   | % |  | 34   | %
|McKesson Corporation           |  | 29   | % |  | 31   | % |  | 31   | %
|AmerisourceBergen Corporation. |  | 16   | % |  | 15   | % |  | 15   | %



F-10



---

##### Table of Contents

The Company derives a majority of its net sales from a limited number of products. Products
that accounted for 10% or more of our Net sales during the years ended December 31 were as follows:



|                     |  |      |   |  |      |   |  |      |  
|-------------------- |  | ---- | - |  | ---- | - |  | ---- | -
|                     |  | 2009 |   |  | 2008 |   |  | 2007 |  
|Lidoderm®            |  | 52   | % |  | 61   | % |  | 65   | %
|Opana® ER and Opana® |  | 16   | % |  | 14   | % |  | 10   | %
|Percocet®            |  | 9    | % |  | 10   | % |  | 11   | %

We have
agreements with Novartis Consumer Health, Inc., Novartis AG, Teikoku Seiyaku Co., Ltd., Almac Pharma Services and Sharp Corporation for the manufacture and supply of a substantial portion of our existing pharmaceutical products. Additionally, we
utilize UPS Supply Chain Solutions, Inc. for customer service support, warehouse and distribution services (see Note 14 for further details).

Revenue RecognitionOur revenues consist of revenues from sales of our pharmaceutical products, less estimates for chargebacks, rebates, sales incentives and allowances, certain royalties,
distribution service fees, returns and losses. We recognize revenue for product sales when title and risk of loss has passed to the customer, which is typically upon delivery to the customer, when estimated provisions for chargebacks, rebates, sales
incentives and allowances, certain royalties, distribution service fees, returns and losses are reasonably determinable, and when collectability is reasonably assured. Revenue from the launch of a new or significantly unique product, for which we
are unable to develop the requisite historical data on which to base estimates of returns, due to the uniqueness of the therapeutic area or delivery technology as compared to other products in our portfolio and in the industry, may be deferred until
such time that an estimate can be determined and all of the conditions above are met and when the product has achieved market acceptance, which is typically based on dispensed prescription data and other information obtained during the period
following launch.

Sales DeductionsWhen we recognize revenue from the sale of our products, we simultaneously
record an adjustment to revenue for estimated chargebacks, rebates, sales incentives and allowances, certain royalties, distribution service fees, returns and losses. These provisions, are estimated based on historical experience, estimated future
trends, estimated customer inventory levels, current contract sales terms with our wholesale and indirect customers and other competitive factors. If the assumptions we used to calculate these adjustments do not appropriately reflect future
activity, our financial position, results of operations and cash flows could be materially impacted.

Research and
DevelopmentExpenditures for research and development are expensed as incurred. Property and equipment that are acquired or constructed for research and development activities and that have alternate future uses are capitalized and
depreciated over their estimated useful lives on a straight-line basis. Upfront and milestone payments made to third parties in connection with agreements with third parties are generally expensed as incurred up to the point of regulatory approval,
absent any alternative future uses. Payments made to third parties subsequent to regulatory approval are generally capitalized and amortized over the remaining useful life of the related product. Amounts capitalized for such payments are included in
other intangibles, net of accumulated amortization.

Purchased In-Process Research and DevelopmentPurchased
in-process research and development (referred to as IPR&D) represents the estimated fair value assigned to research and development projects acquired in a purchase business combination or asset acquisition that have not been completed at the
date of acquisition and which have no alternative future use. IPR&D assets acquired in a business combination after January 1, 2009, are capitalized as indefinite-lived intangible assets. These assets remain indefinite-lived until the
completion or abandonment of the associated research and development efforts. During the period in which (i.e., the period prior to completion or abandonment) those acquired indefinite- lived assets are not amortized but are tested for impairment
annually, or more frequently, if events or changes in circumstances indicate that the asset might be impaired. Alternatively, the fair value of assets acquired as part of an asset acquisition is charged to expense as of the date of acquisition.



F-11



---

##### Table of Contents

Cash and Cash EquivalentsThe Company considers all highly liquid money market
instruments with an original maturity of three months or less when purchased to be cash equivalents. At December 31, 2009, cash equivalents were deposited in financial institutions and consisted of immediately available fund balances. The
Company maintains its cash deposits and cash equivalents with well-known and stable financial institutions.

Marketable
SecuritiesAt the time of purchase, we classify our marketable securities as either available-for-sale securities or trading securities, depending on our intent at that time. In rare or unique circumstances, management may determine that a
one-time transfer of securities from available-for-sale to a trading classification is appropriate.

Available-for-sale and
trading securities are carried at fair value with unrealized holding gains and losses recorded within other comprehensive income or net income, respectively. Fair value is determined based on observable market quotes or valuation models using
assessments of counterparty credit worthiness, credit default risk or underlying security and overall capital market liquidity. The Company reviews unrealized losses associated with available-for-sale securities to determine the classification as a
temporary or other-than-temporary impairment. A temporary impairment results in an unrealized loss being recorded in other comprehensive income. An impairment that is viewed as other-than-temporary is recognized in net
income. The Company considers various factors in determining the classification, including the length of time and extent to which the fair value has been less than the Companys cost basis, the financial condition and near-term prospects of the
issuer or investee, and the Companys ability to hold the investment for a period of time sufficient to allow for any anticipated recovery in market value.

Generally, the Company classifies marketable securities as current when maturity is less than or equal to twelve months or, if time to maturity is greater than twelve months, when they represent
investments of cash that are intended to be used in current operations.

The cost of securities sold is based on the specific
identification method. Auction-rate securities that become illiquid as a result of a failed auction are generally classified as non-current assets as the Company cannot predict when future auctions related to these securities will be successful.

Concentrations of Credit Risk Financial instruments that potentially subject the Company to significant
concentrations of credit risk consist primarily of cash equivalents, marketable debt securities, and accounts receivable. We invest our excess cash in high-quality, liquid money market instruments and auction-rate debt securities maintained by major
U.S. banks and financial institutions. We have not experienced any losses on our cash equivalents.

At December 31, 2009,
$232.6 million of our marketable securities portfolio is invested in auction-rate securities with underlying ratings ranging from AAA to Baa. As explained in Note 3, the fair value of these securities, as determined using a valuation model, was
$232.6 million, $16.5 million less than their original par value of approximately $249.1 million. Due to the continuing changes and uncertainty in the credit markets, it is possible that the valuation of auction-rate securities will further
fluctuate in the near term.

We perform ongoing credit evaluations of our customers and generally do not require collateral.
We have no history of significant losses from uncollectible accounts. Approximately 78% and 86% of our trade accounts receivable balance represent amounts due from three customers at December 31, 2009 and 2008, respectively.

InventoriesInventories consist of finished goods held for distribution, raw materials and work-in-process. Our inventories are
stated at the lower of cost or market. Cost is determined by the first-in, first-out method. We write-down inventories to net realizable value based on forecasted demand and market conditions, which may differ from actual results.

Property and EquipmentProperty and equipment are stated at cost less accumulated depreciation. Depreciation is computed over
the estimated useful life of the related assets, ranging from two to ten years, on a



F-12



---

##### Table of Contents

straight-line basis. Leasehold improvements and capital lease assets are depreciated on a straight-line basis over the shorter of their estimated useful lives or the terms of their respective
leases.

License RightsThe cost of licenses are either expensed immediately or, if capitalized, are stated at
cost, less accumulated amortization and are amortized using the straight-line method over their estimated useful lives ranging from five to twenty years, with a weighted average useful life of approximately 10.3 years. We determine amortization
periods for licenses based on our assessment of various factors impacting estimated useful lives and cash flows of the acquired rights. Such factors include the expected launch date of the product, the strength of the intellectual property
protection of the product and various other competitive, developmental and regulatory issues, and contractual terms.

Impairment of Long-Lived AssetsLong-lived assets, which includes property and equipment, and other intangible assets, are assessed for impairment whenever events or changes in circumstances indicate the carrying amount of the
asset may not be recoverable. The impairment testing involves comparing the carrying amount of the asset to the forecasted undiscounted future cash flows generated by that asset. In the event the carrying value of the asset exceeds the undiscounted
future cash flows generated by that asset and the carrying value is not considered recoverable, an impairment exists. An impairment loss is measured as the excess of the assets carrying value over its fair value, calculated using a discounted
future cash flow method. An impairment loss would be recognized in net income in the period that the impairment occurs.

GoodwillGoodwill, which represents the excess of purchase price over the fair value of net assets acquired, is carried at cost. Goodwill is not amortized; rather, it is subject to a periodic assessment for impairment by
applying a fair value based test. Goodwill is assessed for impairment on an annual basis as of January 1st of each year or more frequently if events or changes in circumstances indicate that the asset might be impaired. The impairment model
prescribes a two-step method for determining a goodwill impairment. In the first step, we determine the fair value of our two reporting units using a discounted cash flow analysis. If the net book values of our reporting units exceed the fair value,
we would then perform the second step of the impairment test which requires allocation of our reporting units fair value to all of its assets and liabilities using the acquisition method prescribed under authoritative guidance for business
combinations with any residual fair value being allocated to goodwill. An impairment charge will be recognized only when the implied fair value of our reporting units goodwill is less than its carrying amount.

Advertising CostsAdvertising costs are expensed as incurred and included in selling, general and administrative expenses and
amounted to $56.9 million, $50.9 million and $47.2 million for the years ended December 31, 2009, 2008 and 2007, respectively.

Income TaxesProvisions for income taxes are calculated on reported pre-tax income based on current tax laws, statutory tax rates and available tax incentives and planning opportunities in various jurisdictions in which we
operate. Such provisions differ from the amounts currently receivable or payable because certain items of income and expense are recognized in different time periods for financial reporting purposes than for income tax purposes. We recognize
deferred taxes by the asset and liability method of accounting for income taxes. Under the asset and liability method, deferred income taxes are recognized for differences between the financial statement and tax bases of assets and liabilities at
enacted statutory tax rates in effect for the years in which the differences are expected to reverse. Significant judgment is required in determining income tax provisions and evaluating tax positions. Valuation allowances are recorded to reduce
deferred tax assets when it is more likely than not that a tax benefit will not be realized. The factors used to assess the likelihood of realization are the Companys forecast of future taxable income and available tax planning strategies that
could be implemented to realize the net deferred tax assets. Failure to achieve forecasted taxable income in applicable tax jurisdictions could affect the ultimate realization of deferred tax assets and could result in an increase in the
Companys effective tax rate on future earnings.

Effective January 1, 2007, we adopted the provisions for
accounting for uncertain tax provisions, Accordingly, we must recognize the tax benefit from an uncertain tax position only if it is more likely than not



F-13



---

##### Table of Contents

that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such
a position are measured based on the largest benefit that has a greater than 50 percent likelihood of being realized upon ultimate resolution.

ContingenciesThe Company is subject to various patent, product liability, government investigations and other legal proceedings in the ordinary course of business. Legal fees and other
expenses related to litigation are expensed as incurred and included in selling, general and administrative expenses. Contingent accruals are recorded when the Company determines that a loss is both probable and reasonably estimable. Due to the fact
that legal proceedings and other contingencies are inherently unpredictable, our assessments involve significant judgment regarding future events.

Contingent ConsiderationWe account for contingent consideration in a purchase business combination in accordance with applicable guidance provided within the business combination rules. As
part of our consideration for the Indevus acquisition, we are contractually obligated to pay additional purchase price consideration upon the achievement of certain regulatory or commercial milestones. Therefore, we are required to update our
assumptions each reporting period, based on new developments, and record such amounts at fair value until such consideration is satisfied.

Stock-Based CompensationEffective January 1, 2006, the Company adopted the fair value recognition provisions for share based compensation using the modified-prospective-transition
method. Under that transition method, compensation cost recognized during the years ended December 31, 2009, 2008 and 2007 includes: (a) compensation cost for all share-based payments granted prior to, but not yet vested as of
January 1, 2006, based on the grant date fair value and (b) compensation cost for all share-based payments granted subsequent to January 1, 2006, based on the grant-date fair value.

Segment InformationWe report segment information in accordance with applicable guidance on segment disclosures. We have one
reportable segment, pharmaceutical products.

Comprehensive IncomeComprehensive income includes all changes in
equity during a period except those that resulted from investments by or distributions to a companys stockholders. Other comprehensive income or loss refers to revenues, expenses, gains and losses that are included in comprehensive income, but
excluded from net income as these amounts are recorded directly as an adjustment to stockholders equity. Our other comprehensive income or loss is comprised of unrealized holding gains and losses, net of income taxes.

Treasury StockTreasury stock consists of shares of Endo Pharmaceuticals Holdings Inc. that have been issued but subsequently
reacquired. We account for treasury stock purchases under the cost method. In accordance with the cost method, we account for the entire cost of acquiring shares of our stock as treasury stock, which is a contra equity account. If these shares are
reissued, we use an average cost method for determining cost. Proceeds in excess of cost would then be credited to additional paid-in capital. No treasury shares have been reissued as of December 31, 2009.

Convertible Senior Subordinated NotesWe accounted for the issuance of our 1.75% Convertible Senior Subordinated Notes
due April 2015 (referred to as the Convertible Notes) in accordance with the guidance regarding the accounting for convertible debt instruments that may be settled in cash upon conversion, which among other items, specifies that contracts issued or
held by an entity that are both (1) indexed to the entities own common stock and (2) classified in stockholders equity in its statement of financial position are not considered to be derivative financial instruments if the
appropriate provisions are met. Accordingly, we have recorded the Convertible Notes as long-term debt in the accompanying consolidated balance sheets.

Concurrent with the issuance of the Convertible Notes we entered into privately negotiated common stock call options with affiliates of the initial purchasers. In addition, we sold warrants to
affiliates of certain of the initial purchasers. In addition to entering into the convertible note hedge transaction and the warrant transaction, we entered into a privately-negotiated accelerated share repurchase agreement with the same
counterparty, as



F-14



---

##### Table of Contents

part of our broader share repurchase program described in Note 12. We accounted for the call options, warrants, and accelerated share repurchase agreement in accordance with the guidance
regarding the accounting derivative financial instruments indexed to, and potentially settled in, a companys own stock. The call options, warrants, and accelerated share repurchase agreement meet the requirements to be accounted for as equity
instruments. The cost of the call options and the proceeds related to the sale of the warrants are included in additional paid-in capital in the accompanying consolidated balance sheet.

Recently Adopted Accounting Pronouncements

The Company adopted new authoritative guidance on business combinations for acquisitions occurring on or after January 1, 2009. This requires recognition of assets acquired, liabilities assumed, and
any noncontrolling interest in the acquiree at the acquisition date, measured at their fair values as of that date. In a business combination achieved in stages, this pronouncement requires recognition of identifiable assets and liabilities, as
well as the non-controlling interest in the acquiree, at the full amounts of their fair values. This pronouncement also requires the fair value of acquired in-process research and development ( referred to as IPR&D) to be recorded as indefinite
lived intangibles, contingent consideration to be recorded on the acquisition date, and restructuring and acquisition-related deal costs to be expensed as incurred. In addition, any excess of the fair value of net assets acquired over purchase price
and any subsequent changes in estimated contingencies are to be recorded in earnings. See Note 5 for Indevus purchase accounting details.

The Company adopted new authoritative guidance on collaborative arrangements which was effective January 1, 2009 and the provisions have been applied retroactively. According to this pronouncement a
collaborative arrangement is one in which the participants are actively involved and are exposed to significant risks and rewards that depend on the ultimate commercial success of the endeavor. Payments to or from collaborators are evaluated and
presented based on the nature of the arrangement and its terms, the nature of the entitys business, and whether those payments are within the scope of other accounting literature. The nature and purpose of collaborative arrangements are
disclosed along with the accounting policies and the classification of significant financial statement amounts related to the arrangements. Activities in the arrangement conducted in a separate legal entity are accounted for under other accounting
literature; however, required disclosure applies to the entire collaborative agreement. This pronouncement did not have a material impact on the Companys consolidated financial statements.

The Company adopted new authoritative guidance on the fair value option for financial assets and financial liabilities which became
effective for fiscal years beginning after November 15, 2007. The Standards objective is to reduce both complexity in accounting for financial instruments and the volatility in earnings caused by measuring related assets and liabilities
differently. Generally accepted accounting principles have required different measurement attributes for different assets and liabilities that can create artificial volatility in earnings. This authoritative guidance helps to mitigate this type of
accounting-induced volatility by enabling companies to report related assets and liabilities at fair value, which would likely reduce the need for companies to comply with detailed rules for hedge accounting. This Standard requires companies to
provide additional information that will help investors and other users of financial statements to more easily understand the effect of the Companys choice to use fair value on its earnings. It also requires entities to display the fair value
of those assets and liabilities for which the Company has chosen to use fair value on the face of the balance sheet. Upon adoption, we chose not to elect the fair value option for our existing financial assets and liabilities. Therefore, the
adoption did not have any impact on our consolidated financial statements. In November 2008, simultaneously with our execution of the agreement with UBS with respect to certain auction rate securities in UBS accounts, we elected the fair value
option for the auction-rate securities rights (See Note 3).

The Company adopted the new authoritative guidance on convertible
debt instruments that may be settled in cash or other assets on conversion as of January 1, 2009. The guidance requires that issuers of convertible debt instruments that may be settled in cash or other assets on conversion to separately account
for the liability and equity components of the instrument in a manner that will reflect the entitys nonconvertible debt borrowing rate



F-15



---

##### Table of Contents

on the instruments issuance date when interest cost is recognized in subsequent periods. Our Convertible Notes are within the scope of this new guidance. Therefore, we are required to
separate the debt portion of our Convertible Notes from the equity portion at their fair value retrospective to the date of issuance and amortize the resulting discount into interest expense over the life of the debt. The provisions of the guidance
are to be applied retrospectively to all periods presented upon adoption and became effective for fiscal years beginning after December 15, 2008, and interim periods within those fiscal years. The adoption will result in the recognition of
approximately $138.7 million of additional interest expense, on a pre-tax basis, over the life of our Convertible Notes. See Note 17 for further details.

The Company adopted the new authoritative guidance on determining the fair value of a financial asset when the market for that asset is not active for the period ending September 30, 2008. The
guidance clarifies the application of fair value measurements when determining the fair value of a financial asset when the market for that asset is not currently active. Additionally, it emphasizes that approaches other than the market approach to
determining fair value may be appropriate when it is determined that, as a result of market inactivity, other valuation approaches are more representative of fair value. Other valuation approaches can involve significant assumptions regarding future
cash flows. The guidance clarifies that these assumptions must incorporate adjustments for nonperformance and liquidity risks that market participants would consider in valuing the asset in an inactive market. See Note 3 for a further discussion of
fair value.

The Company adopted the new authoritative guidance on interim disclosure about fair value of financial
instruments beginning with the period ending June 30, 2009. The guidance amends previous authoritative guidance by requiring disclosures with respect to the fair value of financial instruments in interim and annual financial statements. The
adoption did not have a material effect on the Companys consolidated results of operations or financial condition; however it did result in enhanced disclosures about fair value of financial instruments in our interim financial statements. See
Note 3, Fair Value Measurements for further discussion.

Accounting Pronouncements Issued But Not Yet Adopted

In June 2009, FASB issued authoritative guidance on accounting for variable interest entities, which is effective for
reporting periods beginning after November 15, 2009. The amendments change the process for how an enterprise determines which party consolidates a variable interest entity (referred to as a VIE) to a primarily qualitative analysis. The party
that consolidates the VIE (the primary beneficiary) is defined as the party with (1) the power to direct activities of the VIE that most significantly affect the VIEs economic performance and (2) the obligation to absorb losses of
the VIE or the right to receive benefits from the VIE. Upon adoption, reporting enterprises must reconsider their conclusions on whether an entity should be consolidated and should a change result, the effect on net assets will be recorded as a
cumulative effect adjustment to retained earnings. The company is currently evaluating the impact on our consolidated results of operations and financial position.

In September 2009, the FASB ratified authoritative guidance relating to revenue recognition in multiple element arrangements, which is effective for fiscal years beginning after June 15, 2010 and may
be applied retrospectively or prospectively for new or materially modified arrangements with early adoption permitted. The guidance provides greater ability to separate and allocate arrangement consideration in a multiple element revenue
arrangement. In addition, it will require the use of estimated selling price to allocate arrangement considerations, therefore eliminating the use of the residual method of accounting. The Company is currently evaluating the impact on our
consolidated results of operations and financial position.

NOTE 3. Fair Value Measurements

The financial instruments recorded in our Consolidated Balance Sheets include cash and cash equivalents, accounts receivable, marketable
securities, auction-rate securities rights, equity and cost method investments, accounts payable, acquisition related contingent consideration and our debt obligations. Included in cash and cash equivalents are money market funds representing a type
of mutual fund required by law to invest in low-risk securities (for example, U.S. government bonds, U.S. Treasury Bills and commercial paper). Money market



F-16



---

##### Table of Contents

funds are structured to maintain the funds net asset value at $1 per unit, which assists in ensuring adequate liquidity upon demand by the holder. Money market funds pay dividends that
generally reflect short-term interest rates. Thus, only the dividend yield fluctuates. Due to their short-term maturity, the carrying amounts of cash and cash equivalents, accounts receivable and accounts payable approximate their fair values.

The following table presents the carrying amounts and estimated fair values of our other financial instruments for the years
ended December 31 (in thousands):



|                                                     |  |                 |          |   |            |   |          |                 |  |   |            |   |  |   |          |  
|---------------------------------------------------- |  | --------------- | -------- | - | ---------- | - | -------- | --------------- |  | - | ---------- | - |  | - | -------- | -
|                                                     |  | 2009            |          |   | 2008       |  
|                                                     |  | Carrying Amount |          |   | Fair Value |   |          | Carrying Amount |  |   | Fair Value |  
|Current assets:                                      |  |                 |          |   |            |   |          |                 |  |   |            |   |  |   |          |  
|Auction-rate securities                              |  | $               | 25,275   |   |            | $ | 25,275   |                 |  | $ | 6,500      |   |  | $ | 6,500    |  
|Auction-rate securities rights                       |  |                 | 15,659   |   |            |   | 15,659   |                 |  |   |           |   |  |   |         |  
|                                                     |  |                 |          |  
|Long-term assets:                                    |  |                 |          |   |            |   |          |                 |  |   |            |   |  |   |          |  
|Auction-rate securities                              |  |                 | 207,334  |   |            |   | 207,334  |                 |  |   | 234,005    |   |  |   | 234,005  |  
|Auction-rate securities rights                       |  |                 |         |   |            |   |         |                 |  |   | 27,321     |   |  |   | 27,321   |  
|Equity securities                                    |  |                 | 4,458    |   |            |   | 4,458    |                 |  |   | 5,199      |   |  |   | 5,199    |  
|Equity and cost method investments                   |  |                 | 30,236   |   |            |   | N/A      |                 |  |   | 27,343     |   |  |   | N/A      |  
|                                                     |  |                 |          |   |            |   |          |                 |  |   |            |   |  |   |          |  
|                                                     |  | $               | 282,962  |   |            |   |          |                 |  | $ | 300,368    |   |  |   |          |  
|                                                     |  |                 |          |   |            |   |          |                 |  |   |            |   |  |   |          |  
|Long-term liabilities:                               |  |                 |          |   |            |   |          |                 |  |   |            |   |  |   |          |  
|Acquisition-related contingent consideration         |  | $               | (58,470  | ) |            | $ | (58,470  | )               |  | $ |           |   |  | $ |         |  
|1.75% Convertible Senior Subordinated Notes Due 2015 |  | $               | (260,279 | ) |            | $ | (277,651 | )               |  | $ | (243,150   | ) |  | $ | (236,852 | )
|Non-recourse Notes Payable                           |  |                 | (62,255  | ) |            |   | (61,896  | )               |  |   |           |   |  |   |         |  
|Minimum Voltaren® Gel royalties due to Novartis      |  |                 | (49,996  | ) |            |   | (49,996  | )               |  |   | (46,625    | ) |  |   | (46,625  | )
|                                                     |  |                 |          |   |            |   |          |                 |  |   |            |   |  |   |          |  
|                                                     |  | $               | (431,000 | ) |            | $ | (448,013 | )               |  | $ | (289,775   | ) |  | $ | (283,477 | )
|                                                     |  |                 |          |   |            |   |          |                 |  |   |            |   |  |   |          |  

Equity securities consist of publicly traded common stock the value which is based on a
quoted market price. These securities are not held to support current operations and are therefore classified as non-current assets. The acquisition-related contingent consideration represents amounts payable to the former shareholders under
contingent cash consideration agreements relating to the development of AveedTMand octreotide (see Note 5 for further details). These amounts are required to be measured at fair value on a recurring basis. The fair value of our 1.75% Convertible Senior Subordinated Notes is based
on an income approach known as the binomial lattice model which incorporated certain inputs and assumptions, including scheduled coupon and principal payments, the conversion feature inherent in the Convertible Notes, the put feature inherent in the
Convertible Notes, and a stock price volatility of 36% that was based on historic volatility of the Companys common stock and other factors. The Non-recourse Notes were recorded at fair value as of February 23, 2009, the date we acquired
Indevus. Fair value was determined using an income approach (present value technique). The Non-recourse Notes due in 2024 are being amortized down to their face value at maturity of $57.0 million (see Note 17 for further details). The fair value of
our Non-recourse Notes at December 31, 2009 was determined using an income approach (present value technique) consistent with the methodology used as of February 23, 2009.

The minimum Voltaren® Gel royalty due to Novartis AG was recorded at fair value at inception during 2008 using an income approach (present value technique) and is being accreted up to the
maximum potential future payment of $60.0 million. The Company is not aware of any events or circumstances that would have a significant effect on the fair value of this Novartis AG liability. We believe the carrying amount of this minimum royalty
guarantee at December 31, 2009 represents a reasonable approximation of the price that would be paid to transfer the liability in an orderly transaction between market participants at the measurement date. Accordingly, the carrying value
approximates fair value as of December 31, 2009. The fair value of equity method and cost



F-17



---

##### Table of Contents

method investments is not readily available nor have we estimated the fair value of these investments and disclosure is not required. The Company is not aware of any identified events or changes
in circumstances that would have a significant adverse effect on the carrying value of our $20.0 million cost method investment.

As of December 31, 2009, the Company held certain assets and liabilities that are required to be measured at fair value on a recurring basis, including money market funds, available-for-sale securities and trading securities,
auction-rate securities rights, and acquisition-related contingent consideration. In addition, due to developments during the fourth quarter ended December 31, 2009, the Company was required to measure certain indefinite-lived intangible assets
which are subject to the fair value guidance on a nonrecurring basis. Fair value guidance establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include:



| |  |  | Level 1Quoted prices in active markets for identical assets or liabilities.
| | - |  | ----------------------------------------------------------------------------



| |  |  | Level 2Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities;
quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Level 3Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or
liabilities.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------

The Companys financial assets and liabilities measured at fair value on a recurring
basis at December 31, 2009, were as follows (in thousands):



|                                                         |  |                                                             |         |                                             |   |                                         |  |   |         |   |  |   |         |  
|-------------------------------------------------------- |  | ----------------------------------------------------------- | ------- | ------------------------------------------- | - | --------------------------------------- |  | - | ------- | - |  | - | ------- | -
|                                                         |  | Fair Value Measurements at Reporting Date Using             |        
|                                                         |  | Quoted Prices inActive Marketsfor IdenticalAssets (Level 1) |         | Significant OtherObservableInputs (Level 2) |   | SignificantUnobservableInputs (Level 3) |  |   | Total   |  
|Assets:                                                  |  |                                                             |         |                                             |   |                                         |  |   |         |   |  |   |         |  
|Money market funds                                       |  | $                                                           | 279,772 |                                             | $ |                                        |  | $ |        |   |  | $ | 279,772 |  
|Auction-rate securities                                  |  |                                                             | 25,275  |                                             |   |                                        |  |   | 207,334 |   |  |   | 232,609 |  
|Auction-rate securities rights                           |  |                                                             |        |                                             |   |                                        |  |   | 15,659  |   |  |   | 15,659  |  
|Equity securities                                        |  |                                                             | 4,458   |                                             |   |                                        |  |   |        |   |  |   | 4,458   |  
|                                                         |  |                                                             |         |                                             |   |                                         |  |   |         |   |  |   |         |  
|Total                                                    |  | $                                                           | 309,505 |                                             | $ |                                        |  | $ | 222,993 |   |  | $ | 532,498 |  
|                                                         |  |                                                             |         |                                             |   |                                         |  |   |         |   |  |   |         |  
|Liabilities:                                             |  |                                                             |         |                                             |   |                                         |  |   |         |   |  |   |         |  
|Acquisition-related contingent consideration  long-term |  |                                                             |        |                                             |   |                                        |  |   | (58,470 | ) |  | $ | (58,470 | )
|                                                         |  |                                                             |         |                                             |   |                                         |  |   |         |   |  |   |         |  
|Total                                                    |  | $                                                           |        |                                             | $ |                                        |  | $ | (58,470 | ) |  | $ | (58,470 | )
|                                                         |  |                                                             |         |                                             |   |                                         |  |   |         |   |  |   |         |  

Auction-rate securities included in Level 1 represent trading securities that were sold subsequent to
December 31, 2009 at amounts equal to our original par value investment. Consequently, these trading securities categorized within Level 1 of the fair value hierarchy are classified as current marketable securities at December 31, 2009.

Overview of Auction-Rate Securities

Auction-rate securities are long-term variable rate bonds tied to short-term interest rates. After the initial issuance of the securities, the interest rate on the securities is reset periodically, at
intervals established at the time of issuance (e.g., every seven, twenty-eight, or thirty-five days; every six months; etc.). In an active market, auction-rate securities are bought and sold at each reset date through a competitive bidding process,
often referred to as a Dutch auction. Auctions are successful when the supply and demand of securities are in



F-18



---

##### Table of Contents

balance. Financial institutions brokering the auctions would also participate in the auctions to balance the supply and demand. Beginning in the second half of 2007, auctions began to fail for
specific securities and in mid-February 2008 auction failures became common, prompting market participants, including financial institutions, to cease or limit their exposure to the auction-rate market. Given the current negative liquidity
conditions in the global credit markets, the auction-rate securities market has become inactive. Consequently, our auction-rate securities are currently illiquid through the normal auction process. As a result of the inactivity in the market, quoted
market prices and other observable data are not available or their utility is limited.

At December 31, 2009 and 2008,
the Company determined that the market for its auction-rate securities were inactive. That determination was made considering that there are very few observable transactions for the auction-rate securities or similar securities, the prices for
transactions that have occurred are not current, and the observable prices for those transactionsto the extent they existvary substantially either over time or among market makers, thus reducing the potential usefulness of those
observations. In addition, the current lack of liquidity prevents the Company from comparing our securities directly to securities with quoted market prices.

The Companys auction-rate securities consist of municipal bonds with an auction reset feature, the underlying assets of which are student loans that are backed substantially by the federal
government and have underlying credit ratings of Baa3 or better as of December 31, 2009. Further, the issuers have been making interest payments promptly.

Overview of Auction-Rate Securities Rights

In October 2008, UBS AG
(referred to as UBS) made an offer (referred to as the UBS Offer) to the Company and other clients of UBS Securities LLC and UBS Financial Services Inc. (collectively referred to as the UBS Entities), pursuant to which the Company received
auction-rate securities rights (referred to as the Rights) to sell to UBS all auction-rate securities held by the Company as of February 13, 2008 in a UBS account (referred to as the Eligible Auction-Rate Securities). The Rights permit the
Company to require UBS to purchase the Eligible Auction-Rate Securities for a price equal to par value plus any accrued but unpaid dividends or interest beginning on June 30, 2010 and ending on July 2, 2012. As of December 31, 2009,
we had Eligible Auction-Rate Securities with a par value of $230.3 million, representing 92% of our total auction-rate securities portfolio at par. The remaining eight percent (8%), or $18.8 million at par, of our auction-rate securities portfolio
are not held in a UBS account and therefore are not subject to the UBS Offer.

The UBS Offer was made pursuant to agreements
in principle entered into by the UBS Entities with the Securities and Exchange Commission, the New York Attorney General, the Texas State Securities Board and other state regulatory agencies represented by North American Securities Administrators
Association, and a settlement agreement with the Massachusetts Securities Division to settle investigations brought by each of these agencies against the UBS Entities relating to the sale and marketing of auction-rate securities. The alleged conduct
underlying these investigations suggested that the UBS Entities marketed auction-rate securities as cash alternatives but failed to adequately disclose liquidity risk.

On November 10, 2008, the Company accepted the UBS Offer. As a result, the Company granted to the UBS Entities, the sole discretion and right to sell or otherwise dispose of, and/or enter orders in
the auction process with respect to the Eligible Auction-Rate Securities on the Companys behalf until the Expiration Date, without prior notification, so long as the Company receives a payment of par value plus any accrued but unpaid dividends
or interest upon any sale or disposition.

In addition, as part of the UBS Offer, Endo is eligible for no net cost
loans, should we desire to borrow money prior to the commencement of the exercise period for the Rights. Under the terms of the UBS Offer, Endo may be eligible for no net cost loans for an amount up to 75% of the market value of the
Eligible Auction-Rate Securities at the time of the loan. If and as soon as UBS receives proceeds from a purchase of the Eligible Auction-Rate Securities, the loans will become partially payable in the amount of the proceeds.



F-19



---

##### Table of Contents

Acceptance of the UBS Offer constituted a substantive change in facts and circumstances that
altered the Companys view that it intends to hold the impaired securities until their anticipated recovery. Accordingly, we could no longer assert that we had the intent to hold the auction-rate securities until anticipated recovery. As a
result, during the fourth quarter of 2008, we recognized an other-than-temporary impairment charge recorded in earnings. The charge was measured as the difference between the par value and fair value of the auction-rate securities on
November 10, 2008. Previously recognized declines in fair value associated with the Eligible Auction-Rate Securities that were determined to be temporary were transferred out of other comprehensive income and charged to earnings as part of the
impairment charge.

Acceptance of the UBS Offer created an enforceable legal right by and between the Company and UBS. The UBS
Offer is a legally separate contractual agreement and is non-transferable. The Rights are not readily convertible to cash and do not provide for net settlement. Accordingly, the Rights do not meet the definition of a derivative instrument and are
being treated as a freestanding financial instrument. Accordingly, during the fourth quarter of 2008, the Company recognized an asset, measured at fair value, with the resultant gain recorded in earnings.

Subsequent Accounting for Auction-Rate Securities and Auction-Rate Securities Rights

Acceptance of the UBS Offer constituted a substantive change in facts and circumstances that altered the Companys view that it intended
to hold the illiquid securities until their scheduled maturity date. As a result of the change, we recognized an other than temporary impairment charge as of December 31, 2008 of approximately $26.4 million that is included in Other (income)
expense, net in the Consolidated Statements of Operations.

Concurrent with the acceptance of the UBS offer, the Company made
a one-time election to re-classify the Eligible Auction-Rate Securities from an available-for-sale security to a trading security. The Company made the election to transfer the securities into trading after considering the unprecedented failure of
the entire market for auction-rate securities and the broad-reaching legal settlements that have been agreed to by certain broker-dealers and securities regulators. Subsequent changes to the fair value of these trading securities resulted in $15.2
million of income during 2009 and additional expense of $4.2 million during the years ended December 31, 2009 and 2008, respectively, and were recorded in Other (income) expense, net in the Consolidated Statements of Operations.

During 2008, we elected the fair value option for our auction-rate securities rights. As a result of our election, the fair value of the
auction-rate securities rights are re-measured each reporting period with the corresponding changes in fair value reported in earnings. Since the auction-rate securities rights are freestanding financial instruments, they do not affect the separate
determination of the fair value of the Eligible Auction-Rate Securities. However, in managements view, the auction-rate securities rights act as an economic hedge against further fair value changes in the Eligible Auction-Rate Securities. At
December 31, 2009, the fair value of our auction-rate securities rights were $15.7 million to reflect the fair value measurement of the auction-rate securities rights at that date. The changes in fair value from November 10, 2008 to
December 31, 2008 resulted in a $1.9 million gain compared to an $11.7 million loss during the year ended December 31, 2009. These amounts were recognized in earnings and included in other (income) expense, net in the Consolidated
Statements of Operations.

Valuation of the Auction-Rate Securities

The Company has determined that an income approach (present value technique) that maximizes the use of observable market inputs is the
preferred approach to measuring the fair value of our securities. Specifically, the Company used the discount rate adjustment technique to determine an indication of fair value.



F-20



---

##### Table of Contents

To calculate a price for our auction-rate securities, the Company calculates duration to
maturity, coupon rates, market required rates of return (discount rate) and a discount for lack of liquidity in the following manner:



| |  |  | The Company identifies the duration to maturity of the auction-rate securities as the time at which principal is available to the investor. This can
occur because the auction-rate security is paying a coupon that is above the required rate of return, and the Company treats the security as being called. It can also occur because the market has returned to normal and the Company treats the
auctions as having recommenced. Lastly, and most frequently, the Company treats the principal as being returned as prepayment occurs and at the maturity of the security. The weighted average life used for each security representing time to maturity
ranges from five to eight years. The weighted average life measured across the entire auction-rate portfolio is approximately eight years.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The Company calculates coupon rates based on estimated relationships between the maximum coupon rate (the coupon rate in event of a failure) and market
interest rates. The representative coupon rates on December 31, 2009 and 2008 ranged from 5.37% to 6.12% and 3.86% to 3.96%, respectively. The Company calculates appropriate discount rates for securities that include base interest rates, index
spreads over the base rate, and security-specific spreads. These spreads include the possibility of changes in credit risk over time. At December 31, 2009 and 2008, the spreads over the base rate for our securities applied to our securities
ranged from 154 basis points to 410 basis points and 264 basis points to 588 basis points, respectively.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The Company believes that a market participant would require an adjustment to the required rate of return to adjust for the lack of liquidity. We do
not believe it is unreasonable to assume a 150 basis points adjustment to the required rate of return and a term of either three, four or five years to adjust for this lack of liquidity. The increase in the required rate of return decreases the
prices of the securities. However, the assumption of a three, four or five-year term shortens the times to maturity and increases the prices of the securities. The Company has evaluated the impact of applying each term and the reasonableness of the
range indicated by the results. The Company chose to use a four-year term to adjust for the lack of liquidity as we believe it is the point within the range that is most representative of fair value. The Companys conclusion is based in part on
the fact that the fair values indicated by the results are reasonable in relation to each other given the nature of the securities and current market conditions.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

At December 31, 2009, the fair value of our auction-rate securities, as determined by applying the above described discount rate
adjustment technique, was approximately $232.6 million, representing a seven percent (7%), or $16.5 million discount from their original purchase price or par value. This compares to approximately $240.5 million, representing a 12%, or $32.4 million
discount from their original purchase price or par value at December 31, 2008. We believe we have appropriately reflected our best estimate of the assumptions that market participants would use in pricing the assets in a current transaction to
sell the asset at the measurement date. Accordingly, the carrying value of our auction-rate securities at December 31, 2009 and 2008 were reduced by approximately $16.5 million and $32.4 million, respectively. These adjustments appropriately
reflect the changes in fair value, which the Company attributes to liquidity issues rather than credit issues.

The portion of
this decline in fair value related to the Eligible Auction-Rate Securities was recorded in earnings as an other-than-temporary impairment charge or as changes in the fair value of trading securities. The Company has assessed the portion of the
decline in fair value not associated with the Eligible Auction-Rate Securities to be temporary due to the financial condition and near-term prospects of the underlying issuers, our intent and ability to retain our investment in the issuers for a
period of time sufficient to allow for any anticipated recovery in market value and based on the extent to which fair value is less than par. Accordingly, we recorded a $0.6 million gain and a $1.7 million loss in shareholders equity in
accumulated other comprehensive loss as of December 31, 2009, and 2008, respectively. Securities not subject to the UBS Offer are analyzed each reporting period for other-than-temporary impairment factors. Any future fluctuation in fair value
related to these instruments that the Company judges to be temporary, including any recoveries of previous write-downs, would be recorded to other comprehensive income. If the Company determines that any future valuation adjustment was



F-21



---

##### Table of Contents

other-than-temporary, it would record a charge to earnings as appropriate. However, there can be no assurance that our current belief that the securities not subject to the UBS Offer will recover
their value will not change.

Valuation of the Auction-Rate Securities Rights

The Company has determined that an income approach (present value technique) that maximizes the use of observable market inputs is the
preferred approach to measuring the fair value of the auction-rate securities rights. Specifically, the Company used the discount rate adjustment technique to determine an indication of fair value. The Rights provide the Company with the ability to
sell the Eligible Auction-Rate Securities at par to UBS beginning on June 30, 2010.

The values of the Rights were
estimated as the value of a portfolio designed to approximate the cash flows of the UBS Agreement. The portfolio consists of a bond issued by UBS that will mature equal to the face value of the auction-rate securities, a series of payments that will
replicate the coupons of the auction-rate securities, and a short position in the callable auction-rate security. If the UBS agreement is in the money on the exercise date, then both the UBS agreement and the replicating portfolio will be worth the
difference between the par value of the ARS and the market value of the ARS. If the UBS agreement is out of the money on the exercise date, then both the replicating portfolio and the UBS agreement will have no value.

For purposes of valuing the UBS bond, management selected a required rate of return for a UBS obligation based on market factors including
relevant credit default spreads. The rate of return for the auction-rate securities is determined as described above under Valuation of the Auction-Rate Securities and is used to determine the present value of the coupons of the
auction-rate security.

At December 31, 2009, the fair value of our auction-rate securities rights, as determined by
applying the above described discount rate adjustment technique, was approximately $15.7 million. As described above, the Company chose to use a four-year term to adjust for the lack of liquidity on the auction-rate securities as we believe it is
the point within the range that is most representative of fair value. Accordingly, the same term was used when valuing the Rights. We believe we have appropriately reflected our best estimate of the assumptions that market participants would use in
pricing the asset in a current transaction to sell the asset at the measurement date.

The following table presents changes to
the Companys financial assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the twelve months ended December 31, 2009 (in thousands):



|                                                     |  |                                                                        |         |   |                               |   |         |       |  |   |         |  
|---------------------------------------------------- |  | ---------------------------------------------------------------------- | ------- | - | ----------------------------- | - | ------- | ----- |  | - | ------- | -
|                                                     |  | Fair Value Measurements Using SignificantUnobservable Inputs (Level
3) |        
|                                                     |  | Auction-rateSecurities                                                 |         |   | Auction-rateSecurities Rights |   |         | Total | 
|Balance at January 1, 2009                           |  | $                                                                      | 234,005 |   |                               | $ | 27,321  |       |  | $ | 261,326 |  
|Securities sold or redeemed                          |  |                                                                        | (17,250 | ) |                               |   |        |       |  |   | (17,250 | )
|Securities purchased or acquired                     |  |                                                                        |        |   |                               |   |        |       |  |   |        |  
|Transfers in and/or (out) of Level 3                 |  |                                                                        | (25,275 | ) |                               |   |        |       |  |   | (25,275 | )
|Changes in fair value recorded in earnings           |  |                                                                        | 15,222  |   |                               |   | (11,662 | )     |  |   | 3,560   |  
|Unrealized gain included in other comprehensive loss |  |                                                                        | 632     |   |                               |   |        |       |  |   | 632     |  
|                                                     |  |                                                                        |         |   |                               |   |         |       |  |   |         |  
|Balance at December 31, 2009                         |  | $                                                                      | 207,334 |   |                               | $ | 15,659  |       |  | $ | 222,993 |  
|                                                     |  |                                                                        |         |   |                               |   |         |       |  |   |         |  



F-22



---

##### Table of Contents

|                                           |  |                                                                      |          |  
|------------------------------------------ |  | -------------------------------------------------------------------- | -------- | -
|                                           |  | Fair Value MeasurementsUsing SignificantUnobservable Inputs(Level 3) |         
|                                           |  | Acquisition-relatedContingent Consideration                          |         
|Liabilities:                               |  |                                                                      |          |  
|Balance at January 1, 2009                 |  | $                                                                    |         |  
|Amounts acquired or issued                 |  |                                                                      | (186,560 | )
|Transfers in and/or (out) of Level 3       |  |                                                                      |         |  
|Changes in fair value recorded in earnings |  |                                                                      | 128,090  |  
|                                           |  |                                                                      |          |  
|Balance at December 31, 2009               |  | $                                                                    | (58,470  | )
|                                           |  |                                                                      |          |  

The following table presents changes to the Companys financial assets measured at fair value on a
recurring basis using significant unobservable inputs (Level 3) for the twelve months ended December 31, 2008 (in thousands):



|                                                            |  |                                                                        |         |   |                               |   |        |  |   |         |  
|----------------------------------------------------------- |  | ---------------------------------------------------------------------- | ------- | - | ----------------------------- | - | ------ |  | - | ------- | -
|                                                            |  | Fair Value Measurements Using SignificantUnobservable Inputs (Level 3) |        
|                                                            |  | Auction-rateSecurities                                                 |         |   | Auction-rateSecurities Rights |   | Total  | 
|Balance at January 1, 2008                                  |  | $                                                                      |        |   |                               | $ |       |  | $ |        |  
|Transfers to Level 3                                        |  |                                                                        | 356,250 |   |                               |   |       |  |   | 356,250 |  
|Securities sold or redeemed                                 |  |                                                                        | (83,374 | ) |                               |   |       |  |   | (83,374 | )
|Securities purchased or acquired                            |  |                                                                        |        |   |                               |   | 25,378 |  |   | 25,378  |  
|Transfers in and/or (out) of Level 3                        |  |                                                                        | (6,500  | ) |                               |   |       |  |   | (6,500  | )
|Other-than-temporary impairment charge recorded in earnings |  |                                                                        | (26,417 | ) |                               |   |       |  |   | (26,417 | )
|Changes in fair value recorded in earnings                  |  |                                                                        | (4,225  | ) |                               |   | 1,943  |  |   | (2,282  | )
|Unrealized loss included in other comprehensive loss        |  |                                                                        | (1,729  | ) |                               |   |       |  |   | (1,729  | )
|                                                            |  |                                                                        |         |   |                               |   |        |  |   |         |  
|Balance at December 31, 2008                                |  | $                                                                      | 234,005 |   |                               | $ | 27,321 |  | $ | 261,326 |  
|                                                            |  |                                                                        |         |   |                               |   |        |  |   |         |  

At December 31, 2009, the fair value of the Companys trading securities was $214.9 million. The
following is a summary of available-for-sale securities held by the Company as of December 31, 2009 and 2008 (in thousands):



|                                            |  |                    |         |                      |   |                         |  |   |            |   |  |   |        
|------------------------------------------- |  | ------------------ | ------- | -------------------- | - | ----------------------- |  | - | ---------- | - |  | - | -------
|                                            |  | Available-for-sale
|                                            |  | AmortizedCost      |         | GrossUnrealizedGains |   | GrossUnrealized(Losses) |  |   | Fair Value
|December 31, 2009:                          |  |                    |         |                      |   |                         |  |   |            |   |  |   |        
|Money market funds                          |  | $                  | 279,772 |                      | $ |                        |  | $ |           |   |  | $ | 279,772
|                                            |  |                    |         |                      |   |                         |  |   |            |   |  |   |        
|Total included in cash and cash equivalents |  |                    | 279,772 |                      |   |                        |  |   |           |   |  |   | 279,772
|Auction-rate securities                     |  |                    | 18,800  |                      |   |                        |  |   | (1,096     | ) |  |   | 17,704 
|Equity securities                           |  |                    | 5,564   |                      |   |                        |  |   | (1,106     | ) |  |   | 4,458  
|                                            |  |                    |         |                      |   |                         |  |   |            |   |  |   |        
|Long-term available-for-sale securities     |  |                    | 24,364  |                      |   |                        |  |   | (2,202     | ) |  |   | 22,162 
|Total available-for-sale securities         |  | $                  | 304,136 |                      | $ |                        |  | $ | (2,202     | ) |  | $ | 301,934
|                                            |  |                    |         |                      |   |                         |  |   |            |   |  |   |        



F-23



---

##### Table of Contents

|                                            |  |                    |         |                      |   |                         |  |   |            |   |  |   |        
|------------------------------------------- |  | ------------------ | ------- | -------------------- | - | ----------------------- |  | - | ---------- | - |  | - | -------
|                                            |  | Available-for-sale
|                                            |  | AmortizedCost      |         | GrossUnrealizedGains |   | GrossUnrealized(Losses) |  |   | Fair Value
|December 31, 2008:                          |  |                    |         |                      |   |                         |  |   |            |   |  |   |        
|Money market funds                          |  | $                  | 356,867 |                      | $ |                        |  | $ |           |   |  | $ | 356,867
|                                            |  |                    |         |                      |   |                         |  |   |            |   |  |   |        
|Total included in cash and cash equivalents |  |                    | 356,867 |                      |   |                        |  |   |           |   |  |   | 356,867
|Auction-rate securities                     |  |                    | 18,800  |                      |   |                        |  |   | (1,729     | ) |  |   | 17,071 
|Equity securities                           |  |                    | 5,000   |                      |   | 199                     |  |   |           |   |  |   | 5,199  
|                                            |  |                    |         |                      |   |                         |  |   |            |   |  |   |        
|Long-term available-for-sale securities     |  |                    | 23,800  |                      |   | 199                     |  |   | (1,729     | ) |  |   | 22,270 
|Total available-for-sale securities         |  | $                  | 380,667 |                      | $ | 199                     |  | $ | (1,729     | ) |  | $ | 379,137
|                                            |  |                    |         |                      |   |                         |  |   |            |   |  |   |        

During the year ended December 31, 2009, we sold
$23.8 million of auction-rate securities at par value. During the year ended December 31, 2008, we sold $113.8 million of original par value variable-rate demand obligations and $313.7 million of auction-rate securities at par value and $5.0
million of municipal bonds at par value. There were no realized holding gains and losses resulting from the sales of our auction rate securities and variable rate demand obligations during the period ended December 31, 2009 and 2008. The cost
of securities sold is based on the specific identification method.

During the year ended December 31,2008, equity
securities consisting of investments in open-end mutual funds that invest in U.S. government securities were sold in their entirety for cash proceeds totaling $15.2 million. Of the $15.2 million of cash proceeds, $15.0 million was a return of
principal with the remaining $0.2 million accounted for as a realized holding gain in both 2008 and 2007. The realized gain is included in Other (Income) Expense, net in the Consolidated Statement of Operations. There were no realized holding gains
and losses resulting from the sale of our auction-rate securities and variable rate demand obligations during the year ended December 31, 2008.

The underlying assets of our auction-rate securities are student loans. Student loans are insured by either the Federal Family Education Loan Program, or FFELP, or a combination of FFELP and other
monocline insurers such as Ambac Assurance Corp., or AMBAC, and MBIA Insurance Corp, or MBIA. As of February 19, 2010, MBIA was rated Ba3 by Moodys and BB- by Standard and Poors. AMBAC was rated Ca by Moodys and CC by Standard
and Poors.

The following table sets forth the fair value of our long-term auction-rate securities by type of security
and underlying credit rating as of December 31, 2009 (in thousands):



|                                                                          |  |                             |         |   |   |        |  |     |       |      |   |       |  |   |       |  |   |        
|------------------------------------------------------------------------- |  | --------------------------- | ------- | - | - | ------ |  | --- | ----- | ---- | - | ----- |  | - | ----- |  | - | -------
|                                                                          |  | Underlying Credit Rating(1)
|                                                                          |  | AAA                         |         | A |   | B2     |  | Ba2 |       | Baa3 |   | Total
|Underlying security:                                                      |  |                             |         |   |   |        |  |     |       |      |   |       |  |   |       |  |   |        
|Student loans                                                             |  | $                           | 130,861 |   | $ | 51,781 |  | $   | 9,934 |      | $ | 7,201 |  | $ | 7,557 |  | $ | 207,334
|                                                                          |  |                             |         |   |   |        |  |     |       |      |   |       |  |   |       |  |   |        
|Total auction-rate securities included in long-term marketable securities |  | $                           | 130,861 |   | $ | 51,781 |  | $   | 9,934 |      | $ | 7,201 |  | $ | 7,557 |  | $ | 207,334
|                                                                          |  |                             |         |   |   |        |  |     |       |      |   |       |  |   |       |  |   |        



|(1) | Our auction-rate securities maintain split ratings. For purposes of this table, securities are categorized according to their lowest rating.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------



F-24



---

##### Table of Contents

The following table sets forth the fair value of our long-term auction-rate securities by
type of security and underlying credit rating as of December 31, 2008 (in thousands):



|                                                                          |  |                             |         |    |   |        |  |       |        |  |   |        
|------------------------------------------------------------------------- |  | --------------------------- | ------- | -- | - | ------ |  | ----- | ------ |  | - | -------
|                                                                          |  | Underlying Credit Rating(1)
|                                                                          |  | AAA                         |         | AA |   | A      |  | Total
|Underlying security:                                                      |  |                             |         |    |   |        |  |       |        |  |   |        
|Student loans                                                             |  | $                           | 166,885 |    | $ | 35,302 |  | $     | 31,818 |  | $ | 234,005
|                                                                          |  |                             |         |    |   |        |  |       |        |  |   |        
|Total auction-rate securities included in long-term marketable securities |  | $                           | 166,885 |    | $ | 35,302 |  | $     | 31,818 |  | $ | 234,005
|                                                                          |  |                             |         |    |   |        |  |       |        |  |   |        



|(1) | Our auction-rate securities maintain split ratings. For purposes of this table, securities are categorized according to their lowest rating.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------

As of December 31, 2009, the yields on our long-term auction-rate securities ranged from 0.42% to 0.88%. These yields represent the
predetermined maximum reset rates that occur upon auction failures according to the specific terms within each securitys prospectus. As of December 31, 2009, the weighted average yield for our long-term auction-rate securities
was 0.73%. Total interest recognized on our auction-rate securities and variable rate demand obligations during the year ended December 31, 2009, 2008 and 2007 was $2.4 million, $15.5 million, and $11.6 million respectively. Further, the
issuers have been making interest payments promptly.

The amortized cost and estimated fair value of available-for-sale debt
and equity securities by contractual maturities are shown below (in thousands). Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.



|                                    |  |                   |        |                   |   |               |  |            |        |  |   |       
|----------------------------------- |  | ----------------- | ------ | ----------------- | - | ------------- |  | ---------- | ------ |  | - | ------
|                                    |  | December 31, 2009 |        | December 31, 2008
|                                    |  | AmortizedCost     |        | FairValue         |   | AmortizedCost |  | Fair Value
|Available-for-sale debt securities: |  |                   |        |                   |   |               |  |            |        |  |   |       
|Due in less than 1 year             |  | $                 |       |                   | $ |              |  | $          |       |  | $ |      
|Due in 1 to 5 years                 |  |                   |       |                   |   |              |  |            |       |  |   |      
|Due in 5 to 10 years                |  |                   |       |                   |   |              |  |            |       |  |   |      
|Due after 10 years                  |  |                   | 18,800 |                   |   | 17,704        |  |            | 18,800 |  |   | 17,071
|Equity securities                   |  |                   | 5,564  |                   |   | 4,458         |  |            | 5,000  |  |   | 5,199 
|                                    |  |                   |        |                   |   |               |  |            |        |  |   |       
|Total                               |  | $                 | 24,364 |                   | $ | 22,162        |  | $          | 23,800 |  | $ | 22,270
|                                    |  |                   |        |                   |   |               |  |            |        |  |   |       

The Companys financial assets measured at fair
value on a nonrecurring basis at December 31, 2009, were as follows (in thousands):



|                                         |  |                                                            |   |                                            |   |                                        |  |            |        |  |   |         |  
|---------------------------------------- |  | ---------------------------------------------------------- | - | ------------------------------------------ | - | -------------------------------------- |  | ---------- | ------ |  | - | ------- | -
|                                         |  | Fair Value Measurements at Reporting Date Using            |   |                                            |  
|                                         |  | Quoted Prices inActive Marketsfor IdenticalAssets(Level 1) |   | Significant OtherObservableInputs(Level 2) |   | SignificantUnobservableInputs(Level 3) |  | Total Loss |       
|Assets:                                  |  |                                                            |   |                                            |   |                                        |  |            |        |  |   |         |  
|Aveed indefinite-lived intangible asset |  | $                                                          |  |                                            | $ |                                       |  | $          | 35,000 |  | $ | (65,000 | )
|                                         |  |                                                            |   |                                            |   |                                        |  |            |        |  |   |         |  
|Total                                    |  | $                                                          |  |                                            | $ |                                       |  | $          | 35,000 |  | $ | (65,000 | )
|                                         |  |                                                            |   |                                            |   |                                        |  |            |        |  |   |         |  

As a result of the FDAs Complete Response letter related to our NDA for Aveed, the Company
performed an impairment review for the Aveed intangible asset and concluded that it is required, under generally accepted accounting principles, to record a pre-tax, non-cash impairment charge to write-down the asset to its estimated fair
value. In the complete response letter, the FDA requested information to address the



F-25



---

##### Table of Contents

agencys concerns regarding rare but serious adverse events, including post-injection anaphylactic reaction and pulmonary oil microembolism. The letter also specified that our proposed Risk
Evaluation and Mitigation Strategy with respect to the product is not sufficient. We believe that significant regulatory uncertainty currently exists with respect to the timing, label and regulatory path forward for AveedTM, and accordingly determined that a review for asset impairment was
appropriate. Although the Company is continuing to evaluate the FDAs findings to better understand the agencys concerns, we were required to estimate the fair value of our AveedTMindefinite-lived intangible asset as of the date we received the Complete Response letter. To estimate
fair value we assessed the possible changes to the products indication and targeted population of eligible recipients, the future probability of regulatory approval, relative timing of commercialization, and estimates of the amount and timing
of future cash flows. In January 2010, the Company was notified that the U.S. patent office had issued a Notice of Allowance on a patent covering the AveedTMformulation. Therefore, management considered the likely benefit of patent exclusivity when estimating these future
cash flows. To calculate the fair value of the Aveed intangible asset, the Company used an income approach using a discounted cash flow model considering managements current evaluation of the above mentioned factors. The Company utilized
probability-weighted cash flow models using a present value discount factor of 15% which we believe to be commensurate with the overall risk associated with this particular product. The cash-flow models included our best estimates of future FDA
approval associated with each potential indication and population of eligible recipients. The Company believes that the level and timing of cash flows assumed, discount rate, and probabilities of success appropriately reflect market participant
assumptions.

The fair value of the Aveed intangible asset was determined to be $35 million.
Accordingly, the Company recorded a pre-tax non-cash impairment charge of $65 million for the year ended December 31, 2009, representing the difference between the carrying value of the intangible asset and its estimated fair value. The
impairment charge has been recognized in earnings and included the Impairment of other intangible assets line item in the Consolidated Statements of Operations. Changes in any of these assumptions may result in a further reduction to the
estimated fair value of the AveedTMintangible asset
resulting in additional and potentially full future impairment charges. Such additional impairment charges could materially impact our results of operations in future periods.

As required, we also performed an impairment analysis on all other indefinite-lived intangible assets as of January 1, 2010. None
of our other indefinite-lived intangible assets are impaired.

NOTE 4. INVENTORIES

Inventories are comprised of the following for the years ended December 31 (in thousands):



|                |  |      |        |      |   |       
|--------------- |  | ---- | ------ | ---- | - | ------
|                |  | 2009 |        | 2008
|Raw materials   |  | $    | 8,510  |      | $ | 7,157 
|Work-in-process |  |      | 25,799 |      |   | 10,131
|Finished goods  |  |      | 50,584 |      |   | 63,368
|                |  |      |        |      |   |       
|Total           |  | $    | 84,893 |      | $ | 80,656
|                |  |      |        |      |   |       

NOTE 5. ACQUISITIONS

Indevus Pharmaceuticals, Inc.

On February 23, 2009 (referred to as the Acquisition Date), the Company completed its initial tender offer (referred to as the Offer) for all outstanding shares of common stock, par value $0.001 per
share (referred to as the Indevus Shares), of Indevus, a Delaware corporation. On that day, the Company accepted for payment in accordance with the terms of the Offer, approximately 60.3 million Indevus Shares representing approximately 76% of
the total outstanding Indevus Shares. Through purchases in subsequent offering periods, the exercise of a top-up option and a subsequent merger (referred to as the Merger), the Company completed its acquisition of



F-26



---

##### Table of Contents

Indevus on March 23, 2009, at which time Indevus became a wholly-owned subsidiary of the Company. The Indevus Shares were purchased at a price of $4.50 per Indevus Share, net to the seller
in cash, plus contractual rights to receive up to an additional $3.00 per Indevus Share in contingent cash consideration payments (referred to as the Offer Price), pursuant to the terms of the Agreement and Plan of Merger, dated as of
January 5, 2009. Accordingly, the Company paid approximately $368 million in aggregate initial cash consideration for the Indevus Shares and entered into the AveedTMContingent Cash Consideration Agreement and the Octreotide Contingent Cash Consideration Agreement (each as defined in
the Merger Agreement), providing for the payment of up to an additional $3.00 per Indevus Share in contingent cash consideration payments, in accordance with the terms of the Offer. The total cost to acquire all outstanding Indevus Shares pursuant
to the Offer and the Merger could be up to an additional approximately $267 million, if Endo is obligated to pay the maximum amounts under the AveedTMContingent Cash Consideration Agreement and the Octreotide Contingent Cash Consideration Agreement. The fair value of
those potential obligations is $58.5 million at December 31, 2009.

Indevus was a specialty pharmaceutical company engaged in
the acquisition, development, and commercialization of products to treat conditions in urology, endocrinology and oncology. Following the completion of the Merger, Indevus was renamed Endo Pharmaceuticals Solutions Inc.

Approved products include the following:



| |  |  | Sanctura®
(trospium chloride) was launched in August 2004. Sanctura® is indicated for the treatment of overactive bladder
(referred to as OAB) with symptoms of urge urinary incontinence, urgency and urinary frequency. Sanctura® is
currently promoted in the U.S. by Allergan Inc.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Sanctura XR®
(trospium chloride extended release capsules) is a 60 mg, once-daily formulation of Sanctura®, the only approved
quaternary amine compound clinically proven to effectively treat OAB symptoms in as early as one week, with a low incidence of side effects. Sanctura XR® is currently promoted in the U.S. by Allergan Inc. and by Madaus AG in Europe.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Supprelin® LA
(histrelin acetate) was launched in June 2007. Supprelin® LA is a 12-month hydrogel implant for treating central
precocious puberty (referred to as CPP) or the early onset of puberty in children. Supprelin® LA utilizes our
patented Hydron® Polymer Technology, designed to provide the continuous 12-month administration of a controlled
dose of histrelin, a GnRH agonist.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Vantas®
(histrelin) was launched in the U.S. in November 2004. Vantas® is a soft and flexible 12-month hydrogel implant
currently marketed in the U.S. that provides histrelin, a luteinizing hormone releasing hormone (referred to as LHRH) agonist, for the palliative treatment of advanced prostate cancer. The product utilizes our patented Hydron® Polymer Technology that allows for a controlled delivery of medicine over a 12-month period. In November 2005,
Vantas® was approved in Denmark, and in March 2006, received approval for marketing in Canada from Health
Canada. Regulatory approval was granted in May 2007 in Germany, Ireland, Italy, Spain and the United Kingdom. As of August 2007, Vantas® was approved in Thailand, Singapore, and Malaysia and approval is pending in Taiwan, Korea, Hong Kong and China. Additionally, Vantas® received approval in Argentina in January 2007 and is currently being marketed in that country.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Delatestryl®
(testosterone enanthate) is a marketed injectable testosterone preparation for the treatment of male hypogonadism. Delatestryl® provides testosterone enanthate, a derivative of the primary endogenous androgen testosterone, for intramuscular injection.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Hydron®
Implant is a subcutaneous, retrievable, non-biodegradable, hydrogel reservoir drug delivery device. The Hydron®
Implant is designed to provide sustained release of a broad spectrum of drugs continuously, at constant, predetermined rates. The Hydron® Implant is the only soft, flexible, reservoir-based drug delivery system available for parenteral administration. The hydrogel polymer compositions possess flexible,
tissue-like characteristics providing excellent biocompatibility and patient comfort. This technology serves as the basis for two of our currently marketed products including Vantas® and Supprelin® LA.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



F-27



---

##### Table of Contents

| |  |  | Valstar®
(valrubicin) is a sterile solution of valrubicin for intravesical instillation and is the only product approved by the FDA for therapy of bacillus Calmette-Guerin (referred to as BCG)-refractory carcinoma in situ(referred to as CIS) of the
bladder. Valstar®, originally approved by the FDA in 1998, was withdrawn from the market due to a manufacturing
problem involving impurity issues in the original formulation and was placed on the FDA Drug Shortages List. In April 2007, the Company submitted a supplemental New Drug Application (referred to as sNDA) to the FDA seeking approval to reintroduce
Valstar® and in February 2009 obtained FDA approval of its sNDA for Valstar®. In September 2009, we launched Valstar® for the treatment of patients with BCG-refractory CIS of the bladder. We continue to work closely with the manufacturer to build quantities of the product to support
our newly launched product.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Primary development products include the following:



| |  |  | AveedTM(testosterone undecanoate) is expected to be the first long-acting injectable testosterone preparation available in
the U.S. for the treatment of male hypogonadism in the growing market for testosterone replacement therapies. AveedTMhad historically been referred to as Nebido®
which the Company acquired the U.S. rights to from Schering AG, Germany, in July 2005. On May 6, 2009, we received notice from the FDA that Nebido® was unacceptable as a proprietary name for testosterone undecanoate. In August 2009, we received approval from FDA to use the name AveedTM. The contingent cash consideration agreement relating to the
product, which we have historically referred to as the Nebido® Contingent Cash Consideration Agreement, will now
be referred to as the AveedTMContingent Cash
Consideration Agreement throughout this Report. On December 2, 2009, we received a complete response letter from the FDA regarding AveedTMin response to our March 2009 complete response submission. In the complete response letter, the FDA has requested
information from Endo to address the agencys concerns regarding very rare but serious adverse events, including post-injection anaphylactic reaction and pulmonary oil microembolism. The letter also specified that the proposed REMS is not
sufficient. The Company is continuing to evaluate how best to address the concerns of the FDA and intends to have future dialogue with the agency regarding a possible regulatory pathway. The outcome of future communications with the FDA could have a
material impact on (1) managements assessment of the overall probability of approval, (2) the timing of such approval, (3) the targeted indication or patient population and (4) the likelihood of additional clinical trials.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Octreotide implant, currently in Phase III clinical trials for the treatment of acromegaly, utilizes our patented Hydron® Polymer Technology to deliver six months of octreotide, a long-acting octapeptide that mimics the natural hormone
somatostatin to block production of growth hormone (referred to as GH). Octreotide implant is also approved to treat symptoms associated with metastatic carcinoid tumors and vasoactive intestinal peptide secreting adenomas, which are
gastrointestinal tumors. The octreotide implant is also currently in Phase II trials for the treatment of carcinoid syndrome.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Management believes the Companys acquisition of Indevus is particularly significant because it reflects our commitment to expand our business beyond pain management into complementary medical areas
where we believe we can be innovative and competitive. The combined company markets products through four field sales forces and has the capability to develop innovative new therapies using a novel drug delivery technology.



F-28



---

##### Table of Contents

The operating results of Indevus from February 23, 2009 to December 31, 2009 are
included in the accompanying Consolidated Statements of Operations. The Consolidated Balance Sheet as of December 31, 2009 reflects the acquisition of Indevus, effective February 23, 2009, the date the Company obtained control of Indevus.
The acquisition date fair value of the total consideration transferred was $540.9 million, which consisted of the following (in thousands):



|                         |  |                                       |        
|------------------------ |  | ------------------------------------- | -------
|                         |  | Fair Value ofConsiderationTransferred
|Cash                     |  | $                                     | 368,034
|Contingent consideration |  |                                       | 172,860
|                         |  |                                       |        
|Total                    |  | $                                     | 540,894
|                         |  |                                       |        

The contingent consideration
relates to the amounts payable under the AveedTMContingent Cash Consideration Agreement and the Octreotide Contingent Cash Consideration Agreement. In the event that the Company receives an approval letter from the FDA with respect to the AveedTMNDA on or before the third anniversary of the time at which we purchased the Indevus Shares in the
Offer, then the Company will, subject to the terms described below, (i) pay an additional $2.00 per Indevus Share to the former stockholders of Indevus, if such approval letter grants the right to market and sell AveedTMimmediately and provides labeling for AveedTMthat does not contain a boxed warning (referred to as
AveedTMWith Label) or alternatively, (ii) pay an
additional $1.00 per Indevus Share, if such approval letter grants the right to market and sell AveedTMimmediately and provides labeling for AveedTMthat contains a boxed warning (AveedTMWithout Label). In the event that either an AveedTMWith Label approval or an AveedTMWithout Label approval has not been obtained prior to the third anniversary of the closing of the Offer, then the Company will not pay, and the former Indevus stockholders will not receive, any payments
under the AveedTMContingent Cash Consideration Agreement.

Further, in the event that the AveedTMWithout Label approval is received and subsequently, Endo and its subsidiaries publicly report audited financial
statements which reflect cumulative net sales of AveedTMof at least $125.0 million for four consecutive calendar quarters on or prior to the fifth anniversary of the date of the first commercial sale of AveedTM(referred to as AveedTMNet Sales Event), then the Company will, subject to the terms described below, pay an additional $1.00 per Indevus
Share to the former stockholders of Indevus. In the event that the AveedTMNet Sales Event does not occur prior to the fifth anniversary of the date of the first commercial sale of AveedTMthen the Company will not pay, and former Indevus stockholders will not receive, any additional amounts under the
AveedTMContingent Cash Consideration Agreement.

The range of the undiscounted amounts the Company could pay under the AveedTMContingent Cash Consideration Agreement is between $0 and
approximately $175 million. The fair value of the contractual obligation to pay the AveedTMcontingent consideration recognized on the Acquisition Date was $133.1 million. We determined the fair value of the obligation to pay the AveedTMcontingent consideration based on a probability-weighted income approach. This fair value measurement is
based on significant inputs not observable in the market and thus represents a Level 3 measurement within the fair value hierarchy. Under the AveedTMContingent Cash Consideration Agreement, there are three scenarios that could potentially lead to amounts being paid
to the former stockholders of Indevus. These scenarios are (1) obtaining an AveedTMWith Label approval, (2) obtaining an AveedTMWithout Label approval and (3) achieving the $125.0 million sales milestone on or prior to the fifth anniversary of the date of the first commercial sale of AveedTMshould the AveedTMWithout Label approval be obtained. The fourth scenario is AveedTMnot receiving approval within three years of the closing of the
Offer, which would result in no payment to the former stockholders of Indevus. Each scenario was assigned a probability based on the current regulatory status of AveedTM. The resultant probability-weighted cash flows were then discounted using a discount rate of U.S. Prime plus 300 basis
points, which the Company believes is appropriate and is representative of a market participant assumption.



F-29



---

##### Table of Contents

Similarly, in the event that an approval letter from the FDA is received with respect to an
octreotide NDA (such approval letter, the Octreotide Approval) on or before the fourth anniversary of the closing of the Offer, then the Company will, subject to the terms described below, pay an additional $1.00 per Indevus Share to the former
stockholders of Indevus (such payment, the Octreotide Contingent Cash Consideration Payment). In the event that an Octreotide Approval has not been obtained prior to the fourth anniversary of the closing of the Offer, then the Company will not pay,
and the former Indevus stockholders shall not receive, the Octreotide Contingent Cash Consideration Payment.

The range of the
undiscounted amounts the Company could pay under the Octreotide Contingent Cash Consideration Agreement is between $0 and approximately $91 million. The fair value of the octreotide contractual obligation to pay the contingent consideration
recognized on the Acquisition Date was $39.8 million. We determined the fair value of the contractual obligation to pay the Octreotide Contingent Consideration Payment based on a probability-weighted income approach. This fair value measurement is
based on significant inputs not observable in the market and thus represents a Level 3 measurement within the fair value hierarchy. Under the Octreotide Contingent Cash Consideration Agreement, the two scenarios that require consideration are
(1) Octreotide Approval on or before the fourth anniversary of the closing of the Offer or (2) no Octreotide Approval on or before the fourth anniversary of the closing of the Offer. Each scenario was assigned a probability based on the
current development stage of octreotide. The resultant probability-weighted cash flows were then discounted using a discount rate of U.S. Prime plus 300 basis points, which the Company believes is appropriate and is representative of a market
participant assumption.

In addition to the potential contingent payments under the AveedTMContingent Cash Consideration Agreement and the Octreotide
Contingent Cash Consideration Agreement, the Company has assumed a pre-existing contingent consideration obligation relating to Indevuss acquisition of Valera Pharmaceuticals, Inc. (referred to as the Valera Contingent Consideration), which
was consummated on April 18, 2007. The Valera Contingent Consideration entitles former Valera shareholders to receive additional Indevus Shares based on an agreed upon conversion factor if FDA approval of the octreotide implant for the
treatment for acromegaly is achieved on or before April 18, 2012. Upon Endos acquisition of Indevus, each Valera shareholders right to receive additional Indevus Shares was converted into the right to receive $4.50 per Indevus Share
that such former Valera shareholder would have received plus contractual rights to receive up to an additional $3.00 per Indevus Share that such former Valera shareholder would have received in contingent cash consideration payments under the AveedTMContingent Cash Consideration Agreement and the
Octreotide Contingent Cash Consideration Agreement. These amounts would only be payable to former Valera shareholders if there were Octreotide Approval. The range of the undiscounted amounts the Company could pay with respect to the Valera
Contingent Consideration is between $0 and approximately $33 million.

The Company is accounting for the
Valera Contingent Consideration in the same manner as if it had entered into that arrangement with respect to its acquisition of Indevus. Accordingly, the fair value of the Valera Contingent Consideration recognized on the Acquisition Date was $13.7
million. Fair value was estimated based on a probability-weighted discounted cash flow model, or income approach. This fair value measurement is based on significant inputs not observable in the market and thus represents a Level 3 measurement
within the fair value hierarchy. The fair value of the Valera Contingent Consideration is estimated using the same assumptions used for the AveedTMContingent Cash Consideration Agreement and Octreotide Contingent Cash Consideration Agreement, except that the
probabilities associated with the Valera Contingent Consideration take into account the probability of obtaining the Octreotide Approval on or before the fourth anniversary of the closing of the Offer. This is due to the fact that the Valera
Contingent Consideration will not be paid unless Octreotide for the treatment of acromegaly is approved prior to April 18, 2012.

As of December 31, 2009, the fair value of the acquisition-related contingent consideration decreased by approximately $128.1 million from the acquisition date primarily reflecting managements
current assessment of the decreased probability that we will be obligated to make contingent consideration payments under the AveedTMContingent Cash Consideration Agreement within the specified contractual timeframe, as well as the



F-30



---

##### Table of Contents

anticipated timeline for the NDA filing and FDA approval of octreotide. The decrease in the liability was recorded as a gain and is included in the Acquisition-related items line item in the
accompanying Consolidated Statements of Operations. Changes in any of our assumptions may result in a further volatility to the estimated fair value of the acquisition-related contingent consideration. Such additional changes to fair value could
materially impact our results of operations in future periods.

As of December 31, 2009, there were
no changes to the range of the undiscounted amounts the Company may be required to pay under the AveedTMContingent Cash Consideration Agreement and the Octreotide Contingent Consideration Agreement or related to the Valera
Contingent Consideration.

The following table summarizes the estimated fair values of the assets acquired and liabilities
assumed at the Acquisition Date (in thousands):



|                                 |  |                                         |          |   |                              |   |         |                                |  |   |          |  
|-------------------------------- |  | --------------------------------------- | -------- | - | ---------------------------- | - | ------- | ------------------------------ |  | - | -------- | -
|                                 |  | February 23, 2009(As
initiallyreported) |          |   | MeasurementPeriodAdjustments |   |         | February 23, 2009(As adjusted) | 
|Cash and cash equivalents        |  | $                                       | 117,675  |   |                              | $ |        |                                |  | $ | 117,675  |  
|Accounts receivable              |  |                                         | 13,725   |   |                              |   | 866     |                                |  |   | 14,591   |  
|Inventories                      |  |                                         | 15,808   |   |                              |   | 1,349   |                                |  |   | 17,157   |  
|Prepaid and other current assets |  |                                         | 8,327    |   |                              |   | (5      | )                              |  |   | 8,322    |  
|Property, plant and equipment    |  |                                         | 8,266    |   |                              |   | 590     |                                |  |   | 8,856    |  
|Other intangible assets          |  |                                         | 586,900  |   |                              |   | (54,000 | )                              |  |   | 532,900  |  
|Deferred tax assets              |  |                                         | 159,769  |   |                              |   | 7,980   |                                |  |   | 167,749  |  
|Other non-current assets         |  |                                         | 764      |   |                              |   | 567     |                                |  |   | 1,331    |  
|                                 |  |                                         |          |   |                              |   |         |                                |  |   |          |  
|Total identifiable assets        |  | $                                       | 911,234  |   |                              | $ | (42,653 | )                              |  | $ | 868,581  |  
|                                 |  |                                         |          |   |                              |   |         |                                |  |   |          |  
|Accounts payable                 |  | $                                       | (5,081   | ) |                              | $ | (35     | )                              |  | $ | (5,116   | )
|Accrued expenses                 |  |                                         | (27,357  | ) |                              |   | 632     |                                |  |   | (26,725  | )
|Convertible notes                |  |                                         | (71,682  | ) |                              |   | (830    | )                              |  |   | (72,512  | )
|Non-recourse notes               |  |                                         | (115,235 | ) |                              |   |        |                                |  |   | (115,235 | )
|Deferred tax liabilities         |  |                                         | (234,599 | ) |                              |   | 23,952  |                                |  |   | (210,647 | )
|Other non-current liabilities    |  |                                         | (18,199  | ) |                              |   | (708    | )                              |  |   | (18,907  | )
|                                 |  |                                         |          |   |                              |   |         |                                |  |   |          |  
|Total liabilities assumed        |  |                                         | (472,153 | ) |                              |   | 23,011  |                                |  |   | (449,142 | )
|                                 |  |                                         |          |   |                              |   |         |                                |  |   |          |  
|Net identifiable assets acquired |  | $                                       | 439,081  |   |                              | $ | (19,642 | )                              |  | $ | 419,439  |  
|Goodwill                         |  | $                                       | 102,490  |   |                              | $ | 18,965  |                                |  | $ | 121,455  |  
|                                 |  |                                         |          |   |                              |   |         |                                |  |   |          |  
|Net assets acquired              |  | $                                       | 541,571  |   |                              | $ | (677    | )                              |  | $ | 540,894  |  
|                                 |  |                                         |          |   |                              |   |         |                                |  |   |          |  

The above estimated fair values of assets acquired and liabilities assumed are based on the information that
was available as of the Acquisition Date to estimate the fair value of assets acquired and liabilities assumed. As of December 31, 2009, our measurement period adjustments are complete.

Of the $532.9 million of acquired intangible assets, $255.9 million was assigned to in-process research and development. The remaining
$277.0 million has been assigned to license rights and is subject to a weighted average useful life of approximately 11 years.



F-31



---

##### Table of Contents

The valuation of the intangible assets acquired and related amortization periods are as
follows:



|                                   |  |                        |       |                              |    
|---------------------------------- |  | ---------------------- | ----- | ---------------------------- | ---
|                                   |  | Valuation(in millions) |       | AmortizationPeriod(in years)
|In Process Research & Development: |  |                        |       |                              |    
|Valstar®(1)                        |  | $                      | 88.0  |                              | n/a
|AveedTM                            |  |                        | 100.0 |                              | n/a
|Octreotide                         |  |                        | 31.0  |                              | n/a
|Pagoclone                          |  |                        | 21.0  |                              | n/a
|Pro2000                            |  |                        | 4.0   |                              | n/a
|Other                              |  |                        | 11.9  |                              | n/a
|                                   |  |                        |       |                              |    
|Total                              |  | $                      | 255.9 |                              | n/a
|                                   |  |                        |       |                              |    
|License Rights:                    |  |                        |       |                              |    
|Hydron® Polymer                    |  | $                      | 22.0  |                              | 10 
|Vantas®                            |  |                        | 36.0  |                              | 10 
|Sanctura® Franchise                |  |                        | 94.0  |                              | 12 
|Supprelin® LA                      |  |                        | 124.0 |                              | 10 
|Other                              |  |                        | 1.0   |                              | 4  
|                                   |  |                        |       |                              |    
|Total                              |  | $                      | 277.0 |                              | 11 
|                                   |  |                        |       |                              |    
|Total other intangible assets      |  | $                      | 532.9 |                              |    
|                                   |  |                        |       |                              |    



|(1) | The FDA approved the sNDA for Valstar® subsequent to the Acquisition Date. Therefore, Valstar® was initially classified as in-process research and development and subsequently transferred to License Rights upon obtaining FDA approval.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The fair value of the in-process research and development assets and License Rights
assets, with the exception of the Hydron® Polymer Technology, were estimated using an income approach. Under
this method, an intangible assets fair value is equal to the present value of the incremental after-tax cash flows (excess earnings) attributable solely to the intangible asset over its remaining useful life. To calculate fair value, the
Company used probability-weighted cash flows discounted at rates considered appropriate given the inherent risks associated with each type of asset. The Company believes that the level and timing of cash flows appropriately reflect market
participant assumptions. Cash flows were generally assumed to extend either through or beyond the patent life of each product, depending on the circumstances particular to each product. The fair value of the Hydron® Polymer Technology was estimated using an income approach, specifically known as the relief from royalty method. The
relief from royalty method is based on a hypothetical royalty stream that would be received if the Company were to out-license the technology. The Hydron® Polymer Technology is currently used in the following products: Vantas®, Supprelin® LA and
octreotide. Thus, we derived the hypothetical royalty income from the projected revenues of those drugs. The fair value of the Hydron® Polymer Technology also includes an existing royalty payable by the Company to certain third party partners based on the net sales derived from drugs that use the
Hydron® Polymer Technology. Discount rates applied to the estimated cash flows for all intangible assets
acquired ranged from 13% to 20%, depending on the current stage of development, the overall risk associated with the particular project or product and other market factors. We believe the discount rates used are consistent with those that a market
participant would use.

The $121.5 million of goodwill was assigned to our pharmaceutical products
segment, which is our only reportable segment as of December 31, 2009. The goodwill recognized is attributable primarily to the potential additional applications for the Hydron® Polymer Technology, expected corporate synergies, the assembled workforce of Indevus and other factors. None of the goodwill is expected to be deductible for income
tax purposes.



F-32



---

##### Table of Contents

The deferred tax assets of $167.7 million are related primarily to federal net operating
loss and credit carryforwards of Indevus and its subsidiaries. The deferred tax liabilities of $210.6 million are related primarily to the difference between the book basis and tax basis of identifiable intangible assets.

During the year ended December 31, 2009, we recorded a net gain of $93.1 million of acquisition-related items. These amounts are
included Acquisition-related items in the accompanying Consolidated Statements of Operations and are comprised of the following items (in thousands):



|                                                                      |  |                                       |          |  
|--------------------------------------------------------------------- |  | ------------------------------------- | -------- | -
|                                                                      |  | Acquisition-related Items             |         
|                                                                      |  | February 23, 2009 toDecember 31, 2009 |         
|Investment bank fees, includes Endo and Indevus                       |  | $                                     | 13,030   |  
|Accounting and legal                                                  |  |                                       | 7,851    |  
|Separation and other costs                                            |  |                                       | 14,128   |  
|                                                                      |  |                                       |          |  
|                                                                      |  |                                       | 35,009   |  
|Changes in fair value of acquisition-related contingent consideration |  |                                       | (128,090 | )
|                                                                      |  |                                       |          |  
|Total                                                                 |  | $                                     | (93,081  | )
|                                                                      |  |                                       |          |  

The amounts of revenue and net loss of Indevus included in the Companys Consolidated Statements of
Operations for the year ended December 31, 2009 are as follows (dollars in thousands, except per share data):



|                                 |  |                                                                        |          |  
|-------------------------------- |  | ---------------------------------------------------------------------- | -------- | -
|                                 |  | Revenue and Losses included intheConsolidated Statements of Operations |         
|                                 |  | February 23, 2009 toDecember 31, 2009                                  |         
|Revenue                          |  | $                                                                      | 66,719   |  
|Net loss                         |  | $                                                                      | (107,779 | )
|Basic and diluted loss per share |  | $                                                                      | (0.92    | )

The following supplemental
pro forma information presents the financial results as if the acquisition of Indevus had occurred January 1, 2009 for the year ended December 31, 2009 and on January 1, 2008 for the year ended December 31, 2008. This
supplemental pro forma information has been prepared for comparative purposes and does not purport to be indicative of what would have occurred had the acquisition of Indevus been completed on January 1, 2008 or January 1, 2009, nor are
they indicative of any future results.



|                                                                      |  |                                 |           |      |   |          
|--------------------------------------------------------------------- |  | ------------------------------- | --------- | ---- | - | ---------
|                                                                      |  | Twelve Months EndedDecember 31,
|                                                                      |  | 2009                            |           | 2008
|Pro forma consolidated results (in thousands, except per share data): |  |                                 |           |      |   |          
|Revenue                                                               |  | $                               | 1,471,141 |      | $ | 1,326,717
|Net income                                                            |  | $                               | 243,336   |      | $ | 192,826  
|Basic net income per share                                            |  | $                               | 2.08      |      | $ | 1.56     
|Diluted net income per share                                          |  | $                               | 2.07      |      | $ | 1.56     

These amounts have
been calculated after applying the Companys accounting policies and adjusting the results of Indevus to reflect a different revenue recognition model, the additional depreciation and amortization that would have been charged assuming the fair
value adjustments to property, plant and equipment, intangible assets, unfavorable leases and current and long-term debt, had been applied on January 1, 2009 or 2008, as applicable, together with the consequential tax effects.



F-33



---

##### Table of Contents

RxKinetix, Inc.

On October 12, 2006, the Company acquired all of the outstanding common stock of privately held RxKinetix, Inc. RxKinetix specialized in
developing new therapeutics focused on improving the quality of life for patients being treated for cancer. RxKinetixs most advanced product, now named EN3285, was, as of the acquisition date, in clinical Phase II for the prevention of oral
mucositis, a painful, debilitating and often dose-limiting side effect that afflicts many patients being treated for cancer with radiation and/or chemotherapy. All of the purchased in-process research and development value from this transaction was
assigned to EN3285 since the other products, as of the acquisition date, were very early stage and did not meet the criteria to be recognized as assets.

In December 2007, the Company initiated the first of two phase III clinical trials of EN3285 for the prevention or delay of oral mucositis (OM). Endo had agreed to the trial design with the FDA under the
Special Protocol Assessment (referred to as SPA) process. In March 2008, the first dosage of EN 3285 was administered to a patient enrolled in the clinical phase III trial, triggering a contingent purchase consideration payment to former
shareholders of RxKinetix in the amount of $15 million that was made in March 2008. In April 2008, the FDA notified us that they were placing our studies on clinical hold pending the submission to the FDA of additional pre-clinical data. In February
2009, the Company decided to discontinue all development activities related to EN3285.

NOTE 6. LICENSE AND COLLABORATION AGREEMENTS

Commercial Products

Novartis AG and Novartis Consumer Health, Inc.

On March 4, 2008, we entered into a
License and Supply Agreement (referred to as the Voltaren® Gel Agreement) with and among Novartis AG and
Novartis Consumer Health, Inc. (referred to as Novartis) to obtain the exclusive U.S. marketing rights for the prescription medicine Voltaren® Gel (referred to as Voltaren®
Gel or Licensed Product). Voltaren® Gel received regulatory approval in October 2007 from the U.S. Food and Drug
Administration (referred to as the FDA), becoming the first topical prescription treatment for use in treating pain associated with osteoarthritis and the first new product approved in the U.S. for osteoarthritis since 2001. Voltaren® Gel has been granted marketing exclusivity in the U.S. as a prescription medicine until at least October 2010.

Under the terms of the five-year Voltaren® Gel Agreement, Endo made an upfront cash payment of $85 million. Endo has agreed to pay royalties to Novartis on annual Net Sales of the Licensed Product, subject to
certain thresholds as defined in the Voltaren® Gel Agreement. In addition, Endo has agreed to make certain
guaranteed minimum annual royalty payments of $30 million per year payable in the fourth and fifth year of the Voltaren® Gel Agreement, subject to certain limitations. These guaranteed minimum royalties will be creditable against royalty payments on an annual basis such that Endos
obligation with respect to each year is to pay the greater of (i) royalties payable based on annual net sales of the Licensed Product or (ii) the guaranteed minimum royalty for such Voltaren® Gel Agreement year. No royalty payments were payable to Novartis during 2009 and 2008. Novartis is also eligible to receive a one-time milestone payment
of $25 million if annual net sales of Voltaren® Gel exceed $300 million in the U.S. The $85 million upfront
payment and the present value of the guaranteed minimum royalties have been capitalized as an intangible asset in the amount of $129 million, representing the fair value of the exclusive license to market Voltaren® Gel. We are amortizing this intangible asset into cost of revenues over its estimated five-year useful life.

Endo shall be solely responsible to commercialize the Licensed Product during the term of the
Voltaren® Gel Agreement. With respect to each year during the term of the Voltaren® Gel Agreement, Endo is required to incur a minimum amount of annual advertising and promotional expenses on the
commercialization of the Licensed Product, subject to certain limitations. In addition, Endo will be required to perform a minimum



F-34



---

##### Table of Contents

number of face-to-face one-on-one discussions with physicians and other healthcare practitioners (referred to as details) for the purpose of promoting the Licensed Product within its approved
indication during each year of the Voltaren® Gel Agreement Further, during the term of the Voltaren® Gel Agreement, Endo will share in the costs of certain clinical studies and development activities initiated at the
request of the FDA or as considered appropriate by Novartis and Endo.

During the term of the
Voltaren® Gel Agreement, Endo has agreed to purchase all of its requirements for the Licensed Product from
Novartis. The price is fixed for the first year and subject to annual changes based upon changes in the producer price index and raw materials.

Novartis has the exclusive right, at its sole discretion, to effect a switch of the Licensed Product from a prescription product to an over-the-counter (referred to as OTC) product in the United States,
referred to as an OTC Switch, by filing an amendment or supplement to the Licensed Product New Drug Application or taking any other action necessary or advisable in connection therewith to effect the OTC Switch, and thereafter to commercialize such
OTC product. Notwithstanding the foregoing, Novartis shall not launch an OTC equivalent product prior to a time specified in the Voltaren® Gel Agreement, and Novartis shall not take any action that results in the loss of the prescription product status for the Licensed Product prior to such time.
Novartis will notify Endo if it submits a filing to the FDA in respect of an OTC equivalent product. In the event that Novartis gains approval of an OTC equivalent product that results in the Licensed Product being declassified as a prescription
product, then Novartis will make certain royalty payments to Endo on net sales of such OTC equivalent product in the United States by Novartis, its affiliates and their respective licensees or sublicensees as set forth in the Voltaren® Gel Agreement As a condition to the payment of any and all such royalties, net sales of the Licensed Product in the
United States must have exceeded a certain threshold prior to the launch of the OTC equivalent product by Novartis or its affiliates.

The initial term of the Voltaren® Gel Agreement will expire on
June 30, 2013. Endo has the option to extend the Voltaren® Gel Agreement for two successive one year terms.
The Voltaren® Gel Agreement will remain in place after the first two renewal terms unless either party provides
written notice of non-renewal to the other party at least six months prior to the expiration of any renewal term after the first renewal term or the Voltaren® Gel Agreement is otherwise terminated in accordance with its terms. Among other standard and customary termination rights granted under the Voltaren® Gel Agreement, the Voltaren® Gel Agreement can be terminated by either party upon reasonable written notice, if either party has committed a material breach that has not been remedied within
ninety (90) days from the giving of written notice. Endo may terminate the Voltaren® Gel Agreement by
written notice upon the occurrence of several events, including the launch in the United States of a generic to the Licensed Product. Novartis may terminate the Voltaren® Gel Agreement upon reasonable written notice (1) if Endo fails to deliver a set percentage of the minimum details in any given six-month period under the
Voltaren® Gel Agreement; or (2) on or after the launch in the United States of an OTC equivalent product by
Novartis, its affiliates or any third party that does not result in the declassification of the Licensed Product as a prescription product, following which net sales in any six-month period under the Voltaren® Gel Agreement are less than a certain defined dollar amount.

Hind Healthcare Inc.

In November 1998, Endo entered
into a license agreement (referred to as the Hind License Agreement) with Hind Healthcare Inc., (referred to as Hind), for the sole and exclusive right to develop, use, market, promote and sell Lidoderm® in the United States. Under the terms of the Hind License Agreement, Endo paid Hind approximately $10 million based upon the achievement of certain
milestones and capitalized this amount as an intangible asset representing the fair value of these exclusive rights. In addition, Endo pays Hind nonrefundable royalties based on net sales of Lidoderm®. Royalties are recorded as a reduction to net sales due to the nature of the license agreement and the characteristics of the license involvement by
Hind in Lidoderm®. The royalty rate is 10% of net sales through the shorter of (1) the expiration of the
last licensed patent or (2) November 20, 2011, including a minimum royalty of at least $500,000 per year. During 2009, 2008 and 2007, we recorded $84.9



F-35



---

##### Table of Contents

million, $84.8 million and $78.2 million for these royalties to Hind, respectively. At December 31, 2009 and 2008, $22.8 million and $22.8 million, respectively, is recorded as a royalty
payable and included in accounts payable in the accompanying balance sheet. In March 2002, we extended this license with Hind to cover Lidoderm® in Canada and Mexico.

Penwest
Pharmaceuticals Co.

In September 1997, we entered into a collaboration agreement with Penwest
Pharmaceuticals Co. (referred to as Penwest) to exclusively co-develop opioid analgesic products for pain management, using Penwests patent-protected proprietary technology, for commercial sale worldwide. On April 2, 2002, we amended and
restated this agreement between the parties (referred to as the 2002 Agreement) to provide, among other things, that this collaboration would cover only the opioid analgesic product, oxymorphone ER, now known as Opana® ER. We had historically shared, on an equal basis, the costs of products developed under this agreement. On
March 18, 2003, we received notice from Penwest that it was exercising its right under the agreement to cease funding its share of the development and pre-launch marketing costs of Opana® ER. Accordingly, we were responsible for funding 100% of these remaining costs until June 22, 2006, the date on which Opana® ER received FDA approval. In January 2007, the Company and Penwest entered into an amendment (referred to as the
2007 Amendment) to the 2002 Agreement. Under the terms of the 2007 Amendment, Endo and Penwest agreed to restructure the 2002 Agreement to provide that royalties payable to Penwest for U.S. sales of Opana® ER will be calculated based on net sales of the product rather than on operating profit, and to change certain other provisions of the 2002 Agreement.
The 2007 Amendment also resolved the parties ongoing disagreement with regard to sharing of marketing expenses during the period prior to when Opana® ER reached profitability. The key financial terms of the 2007 Amendment are summarized as follows:



| |  |  | With respect to U.S. sales of Opana® ER, Endos royalty payments to Penwest will be calculated starting at 22% of annual net sales of the product, and, based on agreed-upon levels of annual net
sales achieved, the royalty rate can increase to a maximum of 30%.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | No royalty payments will be due to Penwest for the first $41 million of royalties that would otherwise have been payable beginning from the time of the
product launch in July 2006.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Penwest is entitled to receive milestone payments of up to $90 million based upon the achievement of certain agreed-upon annual sales thresholds.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | In 2003, Penwest opted out of funding development costs for Opana® ER. Under the 2007 Amendment, the parties have agreed that Penwests share of these unfunded development costs will be fixed at $28 million and will be recouped
by Endo through a temporary 50% reduction in royalties payable to Penwest. As of December 31, 2009, Endo has recouped approximately $24.3 million of these unfunded development costs.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Royalties will be reduced by fifty percent (50%) until we recoup our previously recognized unfunded development
costs, after which time royalties will be payable on annual net sales based on the royalty rates described above. In September 2008, the $41 million royalty threshold was met. As a result, we began incurring royalties on the net sales of Opana® ER. Such royalties will be reduced by fifty percent (50%) until we recoup Penwests share of the unfunded
development costs of $28 million, after which time royalties will be payable on annual net sales based on the royalty rates described above. During the year ended December 31, 2009, we recorded, in costs of sales, royalties on the net sales of
Opana® ER of approximately $19.3 million. Royalties of $5.0 million were payable during the year ended
December 31, 2008.

Valeant Canada Ltd

In June 2009, the Company entered into a License Agreement with Valeant Canada Ltd (referred to as Valeant) granting
Valeant a license to market Opana® and Opana® ER in Canada, Australia and New Zealand. Opana® ER, the extended release formulation of oxymorphone, was jointly developed by Penwest and Endo. Under the terms of the collaboration agreement between Penwest and
Endo, the two companies have agreed to



F-36



---

##### Table of Contents

share equally in the proceeds received from Valeant for Opana® ER. The license agreement with Valeant also includes rights to Opana®, the immediate release formulation
of oxymorphone developed by Endo. Under the terms of the licensing agreement Valeant made an upfront payment to Endo and will make future payments if certain sales milestones are reached. In addition, Valeant has agreed to pay royalties on net sales
of Opana® ER and Opana® in each of the three countries, subject to royalty reductions upon patent expiry or generic entry.

Vernalis Development Limited

In July 2004, we entered into a License Agreement and a Loan Agreement with Vernalis Development Limited (referred to as Vernalis), under which Vernalis agreed to license, exclusively to us, rights to
market frovatriptan succinate (referred to as Frova®) in North America (referred to as the Vernalis License
Agreement). Frova® was launched in June 2002 in the U.S. and is indicated for the acute treatment of migraine
headaches in adults. Under the terms of the Vernalis License Agreement, we paid Vernalis an upfront fee of $30 million and annual $15 million payments each in 2005 and 2006. Under the loan agreement, we provided Vernalis with a loan of $50 million
in August 2004. We capitalized the $30 million up-front payment, the present value of the two $15 million anniversary payments and the difference of $6.2 million between the face amount of the loan and its present value at inception as an intangible
asset representing the fair value of the exclusive license to market Frova®. We are amortizing this intangible
asset into cost of revenues on a straight-line basis over its estimated useful life of twelve and one-half years.

Under the terms of the License Agreement, we would have been required to make a $40 million milestone payment upon FDA approval for the short-term prevention of menstrual migraine indication. In September 2007, the FDA issued to the Company
and our development partner Vernalis, a not approvable letter pertaining to our supplemental new drug application (sNDA) for Frova® for the additional indication of short-term prevention of menstrual migraine. In April 2008, Endo notified the FDA of the withdrawal of the sNDA without prejudice to
refiling as afforded under 21 CFR 314.65 for Frova® 2.5 mg tablets. Frova® is approved and marketed for the acute treatment of migraine with or without aura in adults.

In addition, Vernalis could receive one-time milestone payments for the achievement of defined annual net sales targets.
These sales milestone payments increase based on increasing net sales targets ranging from a milestone of $10 million on $200 million in net sales to a milestone of $75 million on $1.2 billion in net sales. These sales milestones could total up to
$255 million if all of the defined net sales targets are achieved. Beginning on January 1, 2007, we began paying royalties to Vernalis based on the net sales of Frova®. We withheld 50% of those royalties and used the withholding to offset a portion of the unpaid accrued interest on the note receivable. The term of the license
agreement is for the shorter of the time (i) that there are valid claims on the Vernalis patents covering Frova® or there is market exclusivity granted by a regulatory authority, whichever is longer, or (ii) until the date on which a generic version of Frova® is first offered, but in no event longer than 20 years. We can terminate the license agreement under certain circumstances, including upon one years written
notice. In July 2007, Vernalis and Endo entered into an Amendment (referred to as Amendment No. 3) to the License Agreement dated July 14, 2004. Under Amendment No. 3, Vernalis granted an exclusive license to Endo to make, have made,
use, commercialize and have commercialized the product Frova® in Canada, under the Canadian Trademark.

On July 1, 2005, we entered into a co-promotion agreement, as amended on December 22, 2005,
with Vernalis. The co-promotion agreement, as amended, was related to the above described license agreement under which Vernalis agreed to exclusively license to us rights to market the product Frova® in North America. Pursuant to the license agreement, Vernalis had retained rights to co-promote Frova® in the United States and exercised its co-promotion option effective January 2006. Concurrent with the execution of Amendment No. 4 to the License
Agreement (see below), the co-promotion agreement was terminated.

In February 2008, we entered into a termination agreement
with Vernalis to terminate the existing loan agreement between the parties and to settle the outstanding note receivable. Concurrent with the termination agreement, we entered into Amendment No. 4 to the 2004 License Agreement between Vernalis
and the



F-37



---

##### Table of Contents

Company (referred to as Amendment No. 4). In addition to amending certain specific terms and conditions of the License Agreement, Amendment No. 4 sets forth an annual minimum net sales
threshold such that no royalties will be due on annual U.S. net sales of Frova® less than $85 million. Prior to
this amendment, royalties were payable by us to Vernalis on all net sales of Frova® in the United States. Now,
once the annual minimum net sales amount is reached, royalty payments will be due only on the portion of annual net sales that exceed the $85 million threshold. We received a cash payment from Vernalis of $7 million and acquired an intangible asset
representing a future royalty stream on the net sales of Frova® as consideration for the full settlement of the
note receivable.

The fair value of the royalty stream that we acquired as a result of the settlement of the note receivable
was calculated using the present value of expected future cash flows using a discount rate that we considered to be appropriate given the inherent risk in the timing and the amount of estimated cash flows. Our estimate of expected future cash flows
was based on the royalty savings that we expect to realize as a result of Amendment No. 4 described above. Based upon our analysis, the fair value of the royalties that we would have otherwise been required to pay plus the $7 million cash
payment made by Vernalis to us in February 2008 was sufficient to recover the amounts owed to us.

Accordingly, we recorded the intangible asset on our books in an amount equal to the book value of the note receivable surrendered, after applying the $7 million payment received from Vernalis, or $46.7 million. We are amortizing this
acquired intangible asset into cost of revenues on a straight-line basis over its estimated useful life of nine years. The nine-year estimated useful life is consistent with the period of time we currently expect to maximize use of the asset without
the significant risk of generic competition for Frova®.

Allergan/Esprit

In September 2007, Indevus entered into an Amended and Restated License, Commercialization and Supply Agreement with Esprit Pharma, Inc (referred to as Esprit), which re-defined the obligations of each
party and superseded all previous agreements (referred to as the Allergan Agreement). On October 16, 2007, the effective date of the Allergan Agreement, Allergan, Inc. (referred to as Allergan) acquired Esprit resulting in Esprit being a
wholly-owned subsidiary of Allergan. Upon effectiveness of the Allergan Agreement, we received the right to receive a fixed percentage of net sales for the term of the Allergan Agreement, subject to increasing annual minimum royalties. Aggregate
minimum royalties for the remainder of the Allergan Agreement amount to approximately $112 million, provided there is no product adverse event, as defined in the Allergan Agreement. Commencing January 1, 2010, or earlier in the case of generic
competition, Allergan has the right to reduce, subject to quarterly and annual restrictions, royalty payments by $20 million in the aggregate. The Company may also receive a payment of $20 million related to a long-term commercialization milestone
related to generic competition. Lastly, all third-party royalties paid by the Company as a result of existing licensing, manufacturing and supply agreements associated with sales of Sanctura® and Sanctura XR® will be
reimbursed to the Company by Allergan up to six percent (6%) of net sales. Pursuant to the Allergan Agreement, on August 13, 2008, Allergan assumed responsibility to manufacture Sanctura XR® for its use. The Allergan Agreement expires on the later of the twelfth annual anniversary of the launch of Sanctura XR® or the last to expire patent covering Sanctura XR® in the United States. Either party may also terminate the Allergan Agreement in the event of a material breach by the other party. In August 2008, Indevus assigned
its rights to receive a fixed percentage of net sales and $20 million related to a long-term commercialization milestone related to generic competition to the holders of the Non-recourse Notes (see Note 17).

In May 2008, together with Madaus AG, Indevus licensed to Allergan the exclusive right to develop, manufacture, and
commercialize Sanctura XR® in Canada. As a result, the Company could receive milestone payments upon achievement
of certain sales thresholds. In addition, third-party royalties owed by the Company on net sales in Canada will be reimbursed by Allergan. This agreement will expire after the later of the expiration of the last applicable patent or our third party
royalty obligation, after which Allergan will have a fully-paid license.



F-38



---

##### Table of Contents

Madaus

In November 1999, Indevus entered into an agreement with Madaus to license the exclusive rights to develop and market
certain products, including Sanctura® in the United States. In exchange for these rights, Indevus agreed to pay
Madaus potential regulatory and sales milestone payments and royalties on net sales of the licensed products or, if sublicensed by Indevus, a portion of royalties received from its sublicensee on net sales of the licensed product by the sublicensee,
in lieu of royalty payments. The agreement expires on the tenth annual anniversary of the 2004 launch of Sanctura XR® provided either party may also terminate this agreement in the event of a material breach by the other party. The term of the agreement continues for ten years from the first commercial sale of each licensed product, after which the license
is fully paid for that licensed product.

In November 2006, Indevus entered into (i) a License and
Supply Agreement and (ii) an amendment to its original license agreement with Madaus (collectively referred to as the Madaus Agreements). Under the Madaus Agreements, Indevus agreed to (a) purchase from Madaus all required trospium active
pharmaceutical ingredient for production of Sanctura XR® through November 2007, (b) license to Madaus the
rights to sell Sanctura XR® in all countries outside of the U.S. (referred to as the Madaus Territory) except
Canada, Japan, Korea and China (referred to as the Joint Territory), (c) pay to Madaus a fee based on the number of capsules of Sanctura XR® sold in the U.S. through the earlier of August 23, 2014 or upon generic formulations achieving a predetermined market share, (d) supply Sanctura XR® to Madaus for a specified period of time, (e) provide development committee support for a defined period, and
(f) provide future know-how to Madaus. In exchange, Madaus (a) waived all rights to manufacture Sanctura XR®, (b) agreed to purchase Sanctura XR® from Indevus at cost plus a fee based on the number of
Sanctura XR® capsules sold in the Madaus Territory, and (c) agreed to make payments upon the achievement of
certain commercial milestones and royalties based on future sales of Sanctura XR® in the Madaus Territory. The
Company and Madaus will share the economics of development and commercialization in the countries in the Joint Territory. If either party decides not to pursue development and commercialization of Sanctura XR® in any country in the Joint Territory, the other party has the right to develop and commercialize Sanctura XR® in that country. The Company will also pay Madaus a portion of royalties the Company receives for Sanctura® and Sanctura XR® subject to a minimum of 4% of net sales, which is offsetable against any third party royalties owed by the Company. The term of the Madaus Agreements for Sanctura
XR® extends until the expiration, on a country-by-country basis, of all royalty obligations owed to the Company
from Madaus which ceases upon the last to expire applicable patent in the Madaus Territory. Either party may also terminate this agreement in the event of a material breach by the other party.

Supernus

In March 2003, Indevus entered into a Development and License Agreement (referred to as the Supernus Agreement) with Supernus Pharmaceuticals, Inc. (referred to as Supernus) pursuant to which Supernus
agreed to develop Sanctura XR® and granted exclusive, worldwide rights under certain Supernus patents and
know-how to Indevus. The Supernus agreement includes potential future development and commercialization milestone payments from the Company to Supernus, including royalties based on sales of Sanctura XR®, and potential future development and commercialization milestone payments for up to an aggregate of $2.4 million upon the launch of Sanctura XR® in certain geographic areas. In addition, the Supernus agreement includes potential future development and
commercialization milestone payments for up to an aggregate of $4.5 million upon the launch of new formulations and over-the-counter products. The Company is responsible for all development costs and the commercialization of Sanctura XR® under the Supernus agreement. The Supernus agreement continues until the earlier of, in any particular country,
(i) the last date on which the manufacture, use or sale of licensed product in such country would infringe a valid claim of a licensed patent in such country but for the license granted by the agreement; or (ii) twelve years from the date
of first commercial sale of licensed product in such country. Either party may also terminate this agreement in the event of a material breach by the other party or by mutual consent.



F-39



---

##### Table of Contents

The Population Council

The Company markets its products utilizing the Hydron® Polymer Technology pursuant to an agreement between Indevus and the Population Council. Unless earlier terminated by either party in the event of a material breach by
the other party, the term of the agreement is the shorter of twenty-five years from October 1997 or until the date on which The Population Council receives approximately $40 million in payments from the Company. The Company is required to pay to The
Population Council 3% of its net sales of Vantas® and any polymer implant containing an LHRH analog. We are also
obligated to pay royalties to the Population Council ranging from 0.5% of net sales to 4% of net sales under certain conditions. We are also obligated to pay the Population Council 30% of certain profits and payments in certain territories received
by the Company from the licensing of Vantas® or any other polymer implant containing an LHRH analog and 5% for
other implants.

Orion Corporation

In April 2008, Indevus entered into a License, Supply and Distribution Agreement (referred to as the Orion Agreement)
with Orion Corporation (referred to as Orion) granting Orion the rights to market Vantas® in Europe and in
certain other countries outside of Europe. Vantas® is currently approved for the treatment of advanced prostate
cancer in Denmark, the United Kingdom and other European countries, and the Company is seeking additional European approval through the mutual recognition procedure. The Company could receive certain contingent payments from Orion based on approvals
and sales thresholds. Additionally, the Company will supply Vantas® to Orion at a pre-determined transfer price
subject to annual minimum purchase requirements. The Orion Agreement expires in April 2023, unless earlier terminated by either party in the event of a material breach by the other party. The Orion Agreement will automatically renew for one-year
periods, subject to the right of either party to terminate the agreement at any time effective at the end of the initial fifteen-year term or any subsequent one-year renewal period thereafter with at least six months prior written notice to the
other party.

Products in Development

Grünenthal GMBH

In February 2009, we entered into a Development,
License and Supply Agreement (referred to as the Grünenthal Agreement) with Grünenthal GMBH (referred to as Grünenthal), granting us the exclusive right in North America to develop and market Grünenthals investigational
drug, axomadol. Currently in Phase II trials, axomadol is a patented new chemical entity being developed for the treatment of moderate to moderately-severe chronic pain and diabetic peripheral neuropathic pain. Under the terms of the Grünenthal
Agreement, Endo paid Grünenthal approximately $9.4 million upfront and an additional $25.2 million in 2009 upon the achievement of certain milestones. We could be obligated to pay additional clinical, regulatory and approval milestone payments
of up to approximately 19 million euros (approximately $27 million at December 31, 2009) and possibly development and commerce milestone payments of up to an additional $68 million. In addition, Grünenthal will receive payments from Endo based
on a percentage of Endos annual net sales of the product in the United States and Canada. The Grünenthal Agreement will expire in its entirety on the date of (i) the 15th anniversary of the first commercial sale of the product; or
(ii) the expiration of the last issued patent claiming or covering the product, or (iii) the expiration of exclusivity granted by the FDA for the product, whichever occurs later. Among other standard and customary termination rights
granted under the Grünenthal Agreement, we may terminate the Grünenthal Agreement at our sole discretion at any time upon ninety (90) days written prior notice to Grünenthal and payment of certain penalties.

Bioniche Life Sciences Inc.

In July 2009, the Company entered into a License, Development and Supply Agreement (referred to as the Bioniche Agreement) with Bioniche Life Sciences Inc. and Bioniche Urology Inc. (collectively referred
to as Bioniche), whereby the Company licensed from Bioniche the exclusive rights to develop and market Bioniches proprietary formulation of Mycobacterial Cell Wall-DNA Complex (MCC), known as Urocidin, in the U.S. with an option for
global rights. We exercised our option for global rights in the first quarter of 2010. Urocidin



F-40



---

##### Table of Contents

is a patented formulation of MCC developed by Bioniche for the treatment of non-muscle-invasive bladder cancer that is currently undergoing Phase III clinical testing. Under the terms of the
Bioniche Agreement, Endo paid Bioniche an up-front cash payment of $20.0 million in July 2009, which was recorded as research and development expense. In addition, Bioniche could potentially receive up to approximately $110 million in
additional payments linked to the achievement of future clinical, regulatory, and commercial milestones related to Urocidin. Bioniche will manufacture Urocidin and receive a transfer price for supply based on a percentage of Endos
annual net sales of Urocidin. Endo may terminate the Bioniche Agreement upon 180 days prior written notice.

Strakan International Limited

In August 2009, we entered into a License and Supply Agreement with Strakan
International Limited, a subsidiary of ProStrakan Group plc (referred to as ProStrakan), for the exclusive right to commercialize Fortesta in the U.S. (referred to as the ProStrakan Agreement). Fortesta, a patented two percent
(2%) testosterone transdermal gel for testosterone replacement therapy in male hypogonadism, utilizes a metered dose delivery system designed to permit accurate dose adjustment to individual patient requirements. Under the terms of the
ProStrakan Agreement, Endo paid ProStrakan an up-front cash payment of $10 million, which was recorded as research and development expense. In addition, ProStrakan could potentially receive up to approximately $200 million in additional
payments linked to the achievement of future regulatory and commercial milestones related to Fortesta. ProStrakan will exclusively supply Fortesta to Endo at a supply price based on a percentage of annual net sales subject to a minimum
floor price as defined in the ProStrakan Agreement. Endo may terminate the ProStrakan Agreement upon six months, prior written notice at no cost to the Company.

In October 2009, we received a Complete Response letter from the FDA regarding the NDA for Fortesta. The FDA issues Complete Response letters to communicate that their initial review of an NDA or
abbreviated new drug application (referred to as ANDA) is complete and that the application cannot be approved in its present form. A Complete Response also informs applicants of changes that must be made before an application can be approved, with
no implication regarding the ultimate approvability of the application. The Company will continue to work closely with the FDA to address their questions and we expect to file a complete response, mid-2010. The milestone payment to ProStrakan
related to FDA approval of Fortesta is reduced the longer such approval takes, subject to certain limits.

BayerSchering

In July 2005, Indevus licensed exclusive U.S. rights from Schering AG,
Germany, now BayerSchering Pharma AG (referred to as BayerSchering) to market a long-acting injectable testosterone preparation for the treatment of male hypogonadism that we refer to as AveedTM(referred to as the BayerSchering Agreement). The Company is responsible for the development and
commercialization of AveedTMin the United States.
BayerSchering is responsible for manufacturing and supplying the Company with finished product. As part of the BayerSchering Agreement, Indevus agreed to pay to BayerSchering up to $30 million in up-front, regulatory milestone, and commercialization
milestone payments, including a $5.0 million payment due upon approval by the FDA to market AveedTM. Indevus also agreed to pay to BayerSchering 25% of net sales of AveedTMto cover both the cost of finished product and royalties. The BayerSchering Agreement expires ten years from the first
commercial sale of AveedTM. Either party may also
terminate the BayerSchering Agreement in the event of a material breach by the other party.

In October
2006, Indevus entered into a supply agreement with BayerSchering pursuant to which BayerSchering agreed to manufacture and supply Indevus with all of its requirements for AveedTMfor a supply price based on net sales of AveedTM. The supply price is applied against the 25% of net sales owed to BayerSchering pursuant to the BayerSchering
Agreement. The BayerSchering Agreement expires ten years after the first commercial sale of AveedTM.



F-41



---

##### Table of Contents

Sanofi-Aventis

In February 1994, Indevus licensed from Rhone-Poulenc Rorer, S.A., now Aventis Pharma S.A. (referred to as Sanofi-Aventis), exclusive,
worldwide rights for the manufacture, use and sale of pagoclone under patent rights and know-how related to the drug, except that Indevus granted Sanofi-Aventis an option to sublicense, under certain conditions, rights to market pagoclone in France.
Indevus paid Sanofi-Aventis a license fee and agreed to make milestone payments based on clinical and regulatory developments, and to pay royalties based on net sales through the expiration of the composition of matter patent. If sublicensed, the
Company would pay to Sanofi-Aventis a portion of receipts from the sublicensee in lieu of payments. Under the terms of the agreement with Sanofi-Aventis, the Company is responsible for all costs of developing, manufacturing, and marketing pagoclone.
This agreement expires with respect to each country upon the last to expire applicable patent. Additionally either party may also terminate this agreement in the event of a material breach by the other party. The Company could owe an additional $5.5
million if certain clinical and regulatory development milestones are achieved, as well as royalties on net sales or a percentage of royalties it receives if the product is sublicensed.

Teva Pharmaceutical Industries Ltd.

In September 2008, Indevus entered into a Development, License and Commercialization Agreement with Teva Pharmaceutical Industries Ltd. (referred to as Teva) for the exclusive, worldwide rights to
pagoclone (referred to as the Teva Agreement). Under the terms of the Teva Agreement, the Company will conduct, and Teva will reimburse expenses for, a Phase IIb study for stuttering. Teva will be responsible for the conduct of all remaining
development and commercialization, including the Phase III program.

In March 2009, Teva converted the Teva Agreement from an
equal cost sharing arrangement to a royalty structure whereby Teva will be responsible for all development and commercial costs in the U.S. and the Company will receive royalties on net sales, in addition to milestone payments.

Under the Teva Agreement, the Company could receive up to $142.5 million in development and sales threshold milestone payments, including an
estimated $11.0 million of contractual payments to be received during the Phase IIb study, of which the Company has received $10.0 million as of December 31, 2009. The term will extend on a country-by-country basis from the effective date to
the later of twelve years from first commercial sale or the last valid claim in a country in the territory. Teva may terminate the Teva Agreement (i) by giving notice within a certain time frame from the completion of the Phase IIb study, and
(ii) anytime with a specified advance notice, except no such termination will be effective until the completion of any ongoing Phase IIb study. If Teva terminates the Teva Agreement after a product is approved, the Company will pay Teva
royalties on its revenues up to an aggregate of certain amounts expended by Teva on development and commercialization. Either party may terminate the Teva Agreement in the event of a material breach by the other party.

Hydron Technologies, Inc.

In November 1989, GP Strategies Corporation (referred to as GP Strategies), then known as National Patent Development Corporation, entered into an agreement (referred to as the Hydron Agreement) with
Dento-Med Industries, Inc., now known as Hydron Technologies, Inc. In June 2000, Valera Pharmaceuticals, Inc. (referred to as Valera, now a wholly-owned subsidiary of the Company known as Endo Pharmaceuticals Valera Inc.) entered into a contribution
agreement with GP Strategies, pursuant to which Valera acquired the assets of GP Strategies drug delivery business, including all intellectual property, and all of Valeras rights under the Hydron Agreement, and certain other agreements
with The Population Council and Shire US, Inc.

Pursuant to the Hydron Agreement, the Company has the
exclusive right to manufacture, sell and distribute any prescription drug or medical device and certain other products made with the Hydron® Polymer Technology. Hydron Technologies retained an exclusive, worldwide license to manufacture, market or use products composed of, or produced with the use of, the
Hydron® Polymer Technology in certain consumer and oral health fields.



F-42



---

##### Table of Contents

Neither party is prohibited from manufacturing, exploiting, using or transferring the rights to any new non-prescription drug product containing the Hydron® Polymer Technology, subject to certain exceptions, for limited exclusivity periods. Subject to certain conditions
and exceptions, the Company is obligated to supply certain types of Hydron® Polymer Technology if Hydron
Technologies elects to purchase them from the Company. In the event the Company withdraws from the business of manufacturing the Hydron® Polymer Technology, the Company will assign all of its right and interest in the Hydron trademark to Hydron Technologies. The agreement continues indefinitely, unless
terminated earlier by the parties. Each party may owe royalties up to 5% to the other party on certain products under certain conditions.

Orexo AB

In August 2004, we entered into an agreement with Orexo AB
(referred to as the Orexo), granting us the exclusive rights to develop and market Orexo ABs patented sublingual muco-adhesive fentanyl product (referred to as Rapinyl) in North America (referred to as the Orexo Agreement). Rapinyl
is a sub-lingual, fast-dissolving tablet of fentanyl intended for the treatment of breakthrough cancer pain. Rapinyl is based on Orexos unique patented technology for sublingual administration. The Orexo Agreement provided for us to make
an up-front license fee payment of $10 million, which we capitalized as an intangible asset representing the fair value of the exclusive right to market products utilizing Orexos unique patented technology for sublingual administration. We
were amortizing this intangible asset over its estimated useful life of twenty (20) years.

During the second quarter of
2008, the Company completed an in-depth review of its research and development (referred to as R&D) activities. The review included an analysis of the Companys R&D priorities, focus and available resources for current and future
projects as well as the commercial potential for each product. As a result of this review, in July 2008 the Company decided to discontinue development of Rapinyl and terminate the Orexo Agreement in accordance with its terms. As a result of
this decision, the Company recorded a pre-tax impairment of other intangible assets in the amount of $8.1 million in the second quarter of 2008 to reduce the remaining balance of our Rapinyl intangible asset to zero and also recorded an
impairment charge of approximately $3.1 million related to the impairment of property and equipment that has been included in research and development expenses.

Pursuant to the terms the Orexo Agreement, we are required to pay a $0.8 million termination fee to Orexo. In addition, we were required to continue all ongoing clinical trials related to Rapinyl
for a maximum of six months from the date of our termination of the Orexo Agreement. On October 30, 2008, Endo entered into an early termination agreement effective October 31, 2008 pursuant to which we agreed to cease all involvement
in the ongoing clinical trials of Rapinyl and paid Orexo a lump sum fee equal to $2.3 million, including the termination fee of $0.8 million. In exchange, Orexo has released Endo from certain claims under the Orexo Agreement. We are also
required to transition the manufacturing process to Orexo or an agreed-upon third party, and supply manufactured product to Orexo or the agreed-upon third party during the transition period for up to a maximum of two years from the date of
termination of the agreement. Orexo will pay us 125% of the cost for all manufactured product we provide during the transition period.

EpiCept Corp.

In December 2003, we entered into a license granting us exclusive, worldwide
rights to certain patents of EpiCept Corp. (referred to as EpiCept) as well as exclusive, worldwide commercialization rights to EpiCepts LidoPAIN® BP product (referred to as EpiCept Agreement). The EpiCept Agreement provides for Endo to pay EpiCept milestones as well as royalties on the net sales of
EpiCepts LidoPAIN® BP product. Under this Agreement, we made an upfront payment to EpiCept of $7.5 million
which we capitalized as an intangible asset representing the fair value of the exclusive right and the patents. We are amortizing this intangible asset over its useful life of thirteen (13) years. EpiCept has also retained an option to
co-promote the LidoPAIN® BP product. Milestone payments made by Endo under this agreement, including regulatory
milestones and sales thresholds, could total up to $82.5 million. In addition, the EpiCept Agreement also contains terms and conditions customary for this type of arrangement, including representations, warranties, indemnities and termination
rights. The



F-43



---

##### Table of Contents

EpiCept Agreement generally lasts until the underlying patents expire. In January 2009, EpiCept announced that it was discontinuing all drug discovery activities including the development of
LidoPAIN® BP. However, the Company intends to maintain its patent rights conveyed by the EpiCept Agreement.

Other

In December 2007, we entered into a license, development and supply agreement with an undisclosed third party collaborative partner for the exclusive clinical development and commercialization rights in
Canada and the United States for a certain technology to be utilized in our various product development activities. Under the terms of this agreement the collaborative partner will be responsible for development efforts to conduct pharmaceutical
formulation development and will manufacture any such product or products which obtain FDA approval. Endo will be responsible for conducting clinical development activities and for all development costs incurred to obtain regulatory approval.
Pursuant to this agreement, we expensed upfront fees of $18.9 million as research and development during the year ended December 31, 2007. During the year ended December 31, 2008, we expensed $6.9 million of milestone payments. During the
year ended December 31, 2009, we had no expenses for milestone payments pursuant to this agreement. Additional payments of approximately 71.0 million euros (approximately $102 million at December 31, 2009) may become due upon achievement
of predetermined regulatory and commercial milestones. Endo will also make payments to the collaboration partner based on net sales of any such product or products commercialized under this agreement.

We have also entered into certain other collaboration and discovery agreements with third parties for the development of pain management and
other products. These agreements require us to share in the development costs of such products and grant marketing rights to us for such products.

We have also licensed from universities and other similar firms rights to certain technologies or intellectual property generally in the field of pain management. We are generally required to make upfront
payments as well as other payments upon successful completion of regulatory or sales milestones. In addition, these agreements generally require us to pay royalties on sales of the products arising from these agreements. These agreements generally
permit Endo to terminate the agreement with no significant continuing obligation.

In July 2008, the Company made a $20
million investment in a privately-held company focused on the development of an innovative treatment for certain types of cancer. In exchange for our $20 million payment, we received an equity interest in the privately-held company and the rights to
negotiate an exclusive worldwide development and commercialization arrangement with respect to a certain technology for use in a specified indication. The Companys $20 million payment resulted in an ownership interest of less than 20% of
the outstanding voting stock of the privately-held company. In addition, Endo and other equity holders have provided a line of credit totaling $25 million, of which Endo is committed to fund $3 million. No amounts have been funded under the
line-of credit as of December 31, 2009. Based on the equity ownership structure, Endo does not have the ability to exert significant influence over the privately-held company. Pursuant to authoritative accounting guidance, our investment
constitutes a variable interest in this privately-held company. We have determined that Endo is not the primary beneficiary and therefore have not consolidated the assets, liabilities, and results of operations of the privately-held company into our
Consolidated Financial Statements. Accordingly, Endo is accounting for this investment under the cost method. As of December 31, 2009, our investment in the privately-held company was $20 million, representing our maximum exposure to loss.



F-44



---

##### Table of Contents

NOTE 7. Property and Equipment

Property and equipment is comprised of the following for the years ended December 31 (in thousands):



|                                |  |      |         |   |      |   |         |  
|------------------------------- |  | ---- | ------- | - | ---- | - | ------- | -
|                                |  | 2009 |         |   | 2008 |  
|Machinery and equipment         |  | $    | 17,331  |   |      | $ | 14,421  |  
|Leasehold improvements          |  |      | 22,567  |   |      |   | 17,459  |  
|Computer equipment and software |  |      | 40,681  |   |      |   | 35,983  |  
|Assets under capital leases     |  |      | 1,222   |   |      |   | 1,542   |  
|Furniture and fixtures          |  |      | 8,094   |   |      |   | 7,824   |  
|Assets under construction       |  |      | 7,758   |   |      |   | 5,300   |  
|                                |  |      |         |   |      |   |         |  
|                                |  |      | 97,653  |   |      |   | 82,529  |  
|Less accumulated depreciation   |  |      | (50,124 | ) |      |   | (38,151 | )
|                                |  |      |         |   |      |   |         |  
|Total                           |  | $    | 47,529  |   |      | $ | 44,378  |  
|                                |  |      |         |   |      |   |         |  

Depreciation expense was $16.9 million, $13.0 million and $11.2 million for the years ended
December 31, 2009, 2008 and 2007, respectively.

NOTE 8. Goodwill and Other Intangibles

For the years ended December 31, changes in the carrying amount of Goodwill consisted of the following (in thousands):



|                                |  |                 |        
|------------------------------- |  | --------------- | -------
|                                |  | Carrying Amount
|Balance at December 31, 2008    |  | $               | 181,079
|Acquisition of Indevus (Note 5) |  |                 | 121,455
|                                |  |                 |        
|Balance at December 31, 2009    |  | $               | 302,534
|                                |  |                 |        

As of December 31, 2009, $204 million and $98
million was allocated to the Pain & Specialty Generics and UEO reporting units, respectively. As a result of the Indevus acquisition, Endo recorded goodwill of approximately $121.5 million, portions which were allocated to each reporting unit.
In allocating the goodwill from the acquisition, Endo determined that the goodwill derived from the transaction was assignable to the Pain & Specialty Generics reporting unit due to the value associated with the forecasted synergies related to
the acquisition.

On December 2 2009, the Company received a complete response letter from the FDA
regarding its NDA for AveedTMand determined this to be a
triggering event requiring us to perform an interim goodwill impairment test on our UEO reporting unit. Therefore, we performed a goodwill impairment test on our UEO reporting unit as of December 2, 2009 after giving effect to the
AveedTMindefinite-lived intangible asset impairment. Our
UEO reporting unit was also tested for impairment again as of January 1, 2010, our annual assessment date, along with our Pain & Specialty Generics reporting unit. The results of our analyses showed that the fair value of both of our
reporting units substantially exceeded their respective carrying values and thus no goodwill impairment exists.

Based upon
recent market conditions, and a lack of comparable market transactions for similar assets, Endo determined that an income approach using a discounted cash flow model was an appropriate valuation methodology to determine each reporting units
fair value. The income approach converts future amounts to a single present value amount (discounted cash flow model). Our discounted cash flow models are highly reliant on various assumptions, including estimates of future cash flow
(including long-term growth rates), discount rate, and expectations about variations in the amount and timing of cash flows and the probability of achieving the estimated cash flows. We believe we have appropriately reflected our best estimate of
the assumptions that market participants would use in determining the fair value of our reporting units at the measurement date.



F-45



---

##### Table of Contents

Our other intangible assets consisted of the following at December 31, 2009 and
December 31, 2008, respectively (in thousands):



|                                    |  |                  |          |   |                  |   |         |  
|----------------------------------- |  | ---------------- | -------- | - | ---------------- | - | ------- | -
|                                    |  | December 31,2009 |          |   | December 31,2008 |  
|Indefinite-lived intangibles:       |  |                  |          |   |                  |   |         |  
|In process research and development |  | $                | 100,900  |   |                  | $ |        |  
|Definite-lived intangibles:         |  |                  |          |   |                  |   |         |  
|Licenses                            |  | $                | 625,242  |   |                  | $ | 257,757 |  
|Less accumulated amortization       |  |                  | (116,233 | ) |                  |   | (52,702 | )
|Patents                             |  |                  |         |   |                  |   | 3,200   |  
|Less accumulated amortization       |  |                  |         |   |                  |   | (3,200  | )
|                                    |  |                  |          |   |                  |   |         |  
|                                    |  |                  | 509,009  |   |                  |   | 205,055 |  
|                                    |  |                  |          |   |                  |   |         |  
|Other intangibles, net              |  | $                | 609,909  |   |                  | $ | 205,055 |  
|                                    |  |                  |          |   |                  |   |         |  

Changes in the gross carrying amount of our other intangible assets for the year ended December 31,
2009, are as follows:



|                                |  |                       |         |  
|------------------------------- |  | --------------------- | ------- | -
|(in thousands)                  |  | Gross carrying amount |        
|Balance at December 31, 2008    |  | $                     | 260,957 |  
|Acquisition of Indevus (Note 5) |  |                       | 532,900 |  
|LecTec license                  |  |                       | 4,485   |  
|AveedTMimpairment               |  |                       | (65,000 | )
|Pro2000 impairment              |  |                       | (4,000  | )
|Disposal of patents             |  |                       | (3,200  | )
|                                |  |                       |         |  
|Balance at December 31, 2009    |  | $                     | 726,142 |  
|                                |  |                       |         |  

On November 11, 2009, we reached a settlement with LecTec Corporation on outstanding patent litigation.
Endo made a one-time, $23 million payment for the exclusive license to two patents for use in the field of prescription pain medicines and treatment. As part of this settlement, both Hind Healthcare Inc. and Teikoku Seiyaku Co., Ltd.were each
contractually required to fund their share of this settlement. Accordingly, we recorded an intangible asset representing the portion of our net payment attributable to the license. The remaining $1.3 million was charged to expense, representing our
estimate of the portion of our net payment attributable to the settlement.

In December of 2009, the Companys Phase III
clinical trials for Pro2000 provided conclusive results that the drug was not effective. In December 2009, the Company concluded there was no further value or alternative future uses associated with this indefinite-lived asset. Accordingly, we
recorded a $4 million impairment charge to write-off the Pro2000 intangible asset in its entirety. Additionally, as a result of the FDAs Complete Response letter related to our NDA for Aveed, the Company performed an impairment review
for the Aveed intangible asset as of December 31, 2009 which resulted in an impairment of $65 million. See Note 3 for further details.

Amortization expense was $63.5 million, $33.5 million and $6.2 million for the years ended December 31, 2009, 2008 and 2007, respectively. As of December 31, 2009, estimated amortization of
intangibles for the five fiscal years subsequent to December 31, 2009 is as follows (in thousands):



|     |  |   |       
|---- |  | - | ------
|2010 |  | $ | 69,141
|2011 |  |   | 69,141
|2012 |  |   | 69,141
|2013 |  |   | 58,836
|2014 |  |   | 43,944



F-46



---

##### Table of Contents

NOTE 9. Accrued Expenses

Accrued expenses are comprised of the following for each of the years ended December 31 (in thousands):



|                       |  |      |         |      |   |        
|---------------------- |  | ---- | ------- | ---- | - | -------
|                       |  | 2009 |         | 2008
|Chargebacks            |  | $    | 51,904  |      | $ | 35,982 
|Returns and allowances |  |      | 48,274  |      |   | 38,982 
|Rebates                |  |      | 124,443 |      |   | 104,667
|Other sales deductions |  |      | 6,060   |      |   | 5,142  
|Other                  |  |      | 55,925  |      |   | 41,232 
|                       |  |      |         |      |   |        
|Total                  |  | $    | 286,606 |      | $ | 226,005
|                       |  |      |         |      |   |        

NOTE 10. Other (Income) Expense, net

The components of other (income) expense, net for each of the years ended December 31 are as follows (in thousands):



|                                                           |  |      |         |   |      |   |         |      |  |   |      |  
|---------------------------------------------------------- |  | ---- | ------- | - | ---- | - | ------- | ---- |  | - | ---- | -
|                                                           |  | 2009 |         |   | 2008 |   |         | 2007 | 
|Other-than-temporary impairment of auction-rate securities |  |      |        |   |      |   | 26,417  |      |  |   |     |  
|Unrealized (gain) loss on trading securities               |  |      | (15,222 | ) |      |   | 4,225   |      |  |   |     |  
|Loss (gain) on Auction-Rate Securities Rights              |  |      | 11,662  |   |      |   | (27,321 | )    |  |   |     |  
|Other                                                      |  |      | 231     |   |      |   | (1,568  | )    |  |   | (598 | )
|                                                           |  |      |         |   |      |   |         |      |  |   |      |  
|Other (income) expense, net                                |  | $    | (3,329  | ) |      | $ | 1,753   |      |  | $ | (598 | )
|                                                           |  |      |         |   |      |   |         |      |  |   |      |  

NOTE 11. Income Taxes

Income tax consists of the following for each of the years ended December 31 (in thousands):



|                                               |  |      |         |   |      |   |         |      |  |   |         |  
|---------------------------------------------- |  | ---- | ------- | - | ---- | - | ------- | ---- |  | - | ------- | -
|                                               |  | 2009 |         |   | 2008 |   |         | 2007 | 
|Current:                                       |  |      |         |   |      |   |         |      |  |   |         |  
|Federal                                        |  | $    | 116,372 |   |      | $ | 124,862 |      |  | $ | 100,542 |  
|State                                          |  |      | 17,036  |   |      |   | 8,639   |      |  |   | 23,439  |  
|                                               |  |      |         |   |      |   |         |      |  |   |         |  
|                                               |  |      | 133,408 |   |      |   | 133,501 |      |  |   | 123,981 |  
|                                               |  |      |         |   |      |   |         |      |  |   |         |  
|Deferred:                                      |  |      |         |   |      |   |         |      |  |   |         |  
|Federal                                        |  |      | (18,621 | ) |      |   | 2,582   |      |  |   | (1,553  | )
|State                                          |  |      | (5,884  | ) |      |   | (743    | )    |  |   | (17     | )
|                                               |  |      |         |   |      |   |         |      |  |   |         |  
|                                               |  |      | (24,505 | ) |      |   | 1,839   |      |  |   | (1,570  | )
|                                               |  |      |         |   |      |   |         |      |  |   |         |  
|Excess tax benefits of stock options exercised |  |      | (3,689  | ) |      |   | (92     | )    |  |   | 3,453   |  
|Valuation allowance                            |  |      | (11,890 | ) |      |   | 1,244   |      |  |   | (54     | )
|                                               |  |      |         |   |      |   |         |      |  |   |         |  
|Total income tax                               |  | $    | 93,324  |   |      | $ | 136,492 |      |  | $ | 125,810 |  
|                                               |  |      |         |   |      |   |         |      |  |   |         |  



F-47



---

##### Table of Contents

A reconciliation of income tax at the federal statutory income tax rate to the total income
tax provision for each of the years ended December 31 (in thousands):



|                                         |  |      |         |   |      |   |         |      |  |   |         |  
|---------------------------------------- |  | ---- | ------- | - | ---- | - | ------- | ---- |  | - | ------- | -
|                                         |  | 2009 |         |   | 2008 |   |         | 2007 | 
|Federal income tax at the statutory rate |  | $    | 125,881 |   |      | $ | 137,144 |      |  | $ | 123,637 |  
|State income tax net of federal benefit  |  |      | 4,383   |   |      |   | 8,965   |      |  |   | 11,493  |  
|Research and development credit          |  |      | (3,428  | ) |      |   | (2,124  | )    |  |   | (2,704  | )
|Uncertain tax positions                  |  |      | 6,810   |   |      |   | (2,898  | )    |  |   | 5,055   |  
|Effect of permanent items:               |  |      |         |   |      |   |         |      |  |   |         |  
|Changes in contingent consideration      |  |      | (42,819 | ) |      |   |        |      |  |   |        |  
|Transaction-related expenses             |  |      | 3,447   |   |      |   |        |      |  |   |        |  
|Tax exempt interest income               |  |      | (905    | ) |      |   | (6,631  | )    |  |   | (9,447  | )
|Other                                    |  |      | (45     | ) |      |   | 2,036   |      |  |   | (2,224  | )
|                                         |  |      |         |   |      |   |         |      |  |   |         |  
|Total income tax                         |  | $    | 93,324  |   |      | $ | 136,492 |      |  | $ | 125,810 |  
|                                         |  |      |         |   |      |   |         |      |  |   |         |  

The tax effects of temporary differences that comprise the current and non-current deferred income tax
amounts shown on the balance sheets for the years ended December 31 are as follows (in thousands):



|                                                           |  |      |          |   |      |   |         |  
|---------------------------------------------------------- |  | ---- | -------- | - | ---- | - | ------- | -
|                                                           |  | 2009 |          |   | 2008 |  
|Deferred tax assets:                                       |  |      |          |   |      |   |         |  
|Accrued expenses                                           |  | $    | 67,953   |   |      | $ | 44,056  |  
|Compensation related to stock options                      |  |      | 15,693   |   |      |   | 14,631  |  
|Purchased in-process research and development              |  |      | 2,943    |   |      |   | 4,203   |  
|Net operating loss carryforward                            |  |      | 122,558  |   |      |   | 10,598  |  
|Capital loss carryforward                                  |  |      | 11,235   |   |      |   | 10,729  |  
|Research and development credit carryforward               |  |      | 11,604   |   |      |   |        |  
|Depreciation and amortization                              |  |      | 23,767   |   |      |   |        |  
|Uncertain tax positions                                    |  |      | 17,795   |   |      |   | 15,858  |  
|Other-than-temporary impairment of auction-rate securities |  |      | 6,135    |   |      |   | 11,721  |  
|Interest expenseoriginal issuers discount                 |  |      |         |   |      |   | 1,119   |  
|Prepaid royalties                                          |  |      | 12,354   |   |      |   | 16,557  |  
|Other                                                      |  |      | 11,722   |   |      |   | 5,620   |  
|                                                           |  |      |          |   |      |   |         |  
|Total gross deferred income tax assets                     |  |      | 303,759  |   |      |   | 135,092 |  
|                                                           |  |      |          |   |      |   |         |  
|Deferred tax liabilities:                                  |  |      |          |   |      |   |         |  
|Depreciation and amortization                              |  |      | (223,379 | ) |      |   | (49,032 | )
|Convertible debtnon cash interest expense                 |  |      | (10,469  | ) |      |   | (12,467 | )
|Auction-rate securities rights                             |  |      | (5,817   | ) |      |   | (10,451 | )
|Other                                                      |  |      | (5,601   | ) |      |   | (1,941  | )
|                                                           |  |      |          |   |      |   |         |  
|Total gross deferred income tax liabilities                |  |      | (245,266 | ) |      |   | (73,891 | )
|                                                           |  |      |          |   |      |   |         |  
|Valuation allowance                                        |  |      | (17,240  | ) |      |   | (14,067 | )
|                                                           |  |      |          |   |      |   |         |  
|Net deferred income tax asset                              |  | $    | 41,253   |   |      | $ | 47,134  |  
|                                                           |  |      |          |   |      |   |         |  

As of December 31, 2009, the Company recorded a valuation allowance of $0.4 million related to the
unrealized holding loss on available-for-sale auction-rate securities, the offset of which was recorded in accumulated other comprehensive loss, a component of shareholders equity.

The Company had $33.2 million of capital losses that expired at December 31, 2009. Accordingly, the deferred tax asset and related
valuation allowance were eliminated. The Company recorded an additional valuation allowance of $14.0 in 2009 primarily related to the uncertainty of our ability to utilize the capital loss carryforwards acquired from Indevus which $26.7 million will
expire December 31, 2011.



F-48



---

##### Table of Contents

On January 1, 2007, the Company adopted the provisions for accounting for uncertain tax
positions, which became effective for fiscal years beginning after December 15, 2006. The new standard created a single model to address uncertainty in tax positions and clarifies the accounting for income taxes by prescribing the minimum
recognition threshold a tax position is required to meet before being recognized in the financial statements. The provisions apply to all material tax positions in all taxing jurisdictions for all open tax years. The standard establishes a two-step
process for evaluating tax positions. Step 1  Recognition, requires the Company to determine whether a tax position, based solely on its technical merits, has a likelihood of more than 50 percent (more-likely-than-not) that the tax
position taken will be sustained upon examination. Step 2  Measurement, which is only addressed if Step 1 has been satisfied, requires the Company to measure the tax benefit as the largest amount of benefit, determined on a cumulative
probability basis that is more-likely-than-not to be realized upon ultimate settlement.

The Company records accrued interest
and penalties related to unrecognized tax benefits in income tax expense. During the years ended December 31, 2009 and 2008, interest and penalties included in income tax expense totaled $2.1 million and $1.3 million, respectively.

A reconciliation of the change in the uncertain tax benefits balance from January 1, 2007 to December 31, 2009 is as follow (in
thousands):



|                                                    |  |                                                      |         |  
|--------------------------------------------------- |  | ---------------------------------------------------- | ------- | -
|                                                    |  | Unrecognized TaxBenefitFederal, State,and ForeignTax |        
|Balance at January 1, 2007                          |  | $                                                    | 5,461   |  
|Gross additions for current year positions          |  |                                                      | 4,363   |  
|Gross additions for prior period positions          |  |                                                      | 1,220   |  
|Gross reductions for prior period positions         |  |                                                      | (64     | )
|                                                    |  |                                                      |         |  
|Balance at December 31, 2007                        |  | $                                                    | 10,980  |  
|Gross additions for current year positions          |  |                                                      | 5,200   |  
|Gross additions for prior period positions          |  |                                                      | 17,091  |  
|Gross reductions for prior period positions         |  |                                                      | (11,758 | )
|Decrease due to settlements                         |  |                                                      | (559    | )
|Decrease due to lapse of statute of limitations     |  |                                                      | (1,650  | )
|                                                    |  |                                                      |         |  
|Balance at December 31, 2008                        |  |                                                      | 19,304  |  
|Gross additions for current year positions          |  |                                                      | 7,609   |  
|Gross additions for prior period positions          |  |                                                      | 217     |  
|Gross reductions for prior period positions         |  |                                                      | (27     | )
|Decrease due to settlements                         |  |                                                      |        |  
|Decrease due to lapse of statute of limitations     |  |                                                      |        |  
|                                                    |  |                                                      |         |  
|Balance at December 31, 2009                        |  | $                                                    | 27,103  |  
|                                                    |  |                                                      |         |  
|Accrued interest and penalties                      |  |                                                      | 7,197   |  
|                                                    |  |                                                      |         |  
|Total uncertain tax liability                       |  | $                                                    | 34,300  |  
|                                                    |  |                                                      |         |  
|Current portion (included in accrued expenses)      |  | $                                                    | 587     |  
|Non-current portion (included in other liabilities) |  | $                                                    | 33,713  |  

The Company and its
subsidiaries are routinely examined by various taxing authorities, which have proposed adjustments to tax for issues such as certain tax credits and the deductibility of certain expenses. While it is possible that one or more of these examinations
may be resolved within the next twelve months, it is not anticipated that the total amount of unrecognized tax benefits will significantly increase or decrease within the next twelve months. In addition, the expiration of statutes of limitations for
various jurisdictions is expected to reduce the unrecognized tax benefits balance by an insignificant amount.



F-49



---

##### Table of Contents

The Company files income tax returns in the U.S. Federal jurisdiction, and various state and
foreign jurisdictions. The Company is subject to U.S. Federal, state and local, and non-U.S. income tax examinations by tax authorities. The Companys U.S. federal income tax returns for tax years 2003 through 2006 are currently under routine
examination by the IRS. In general, the Company is no longer subject to U.S. federal, state and local income tax examinations by tax authorities for years before 2003. The Company believes that it has adequately provided for uncertain tax positions
relating to all open tax years by tax jurisdiction.

The total amount of gross unrecognized tax benefits as of
December 31, 2009 is $34.3 million, including interest and penalties, of which $16.1 million, if recognized, would affect the Companys effective tax rate. The change in the total amount of unrecognized tax benefits did not have a material
impact on the Companys results of operations for the year ended December 31, 2009 or our financial position as of December 31, 2009. Any future adjustments to our uncertain tax position liability will result in an impact to our
income tax provision and effective tax rate.

It is expected that the amount of unrecognized tax benefits will change during
the next twelve months; however, the Company does not anticipate any adjustments that would lead to a material impact on our results of operations or our financial position.

NOTE 12. STOCKHOLDERS EQUITY

Common Stock

At our 2008 Annual Meeting held on June 26, 2008, our stockholders approved an amendment to the Companys Amended and Restated
Certificate of Incorporation which increased the total number of shares of common stock, $0.01 par value, that the Company is authorized to issue from 175,000,000 to 350,000,000.

Subject to certain limitations, we are permitted to pay dividends under the Credit Facility. See Note 17 for further details.

Preferred Stock

The Board of Directors may, without further action by the stockholders, issue a series of Preferred Stock and fix the rights and preferences of those shares, including the dividend rights, dividend rates, conversion rights, exchange rights,
voting rights, terms of redemption, redemption price or prices, liquidation preferences, the number of shares constituting any series and the designation of such series. As of December 31, 2009, no shares of Preferred Stock have been issued.

Stock-Based Compensation

Endo Pharmaceuticals Holdings Inc. 2000, 2004 and 2007 Stock Incentive Plans

On August 11, 2000, we established the Endo Pharmaceuticals Holdings Inc. 2000 Stock Incentive Plan. The 2000 Stock Incentive Plan reserves an aggregate of 4,000,000 shares of common stock of the Company for issuance to employees,
officers, directors and consultants. The 2000 Stock Incentive Plan provides for the issuance of stock options, restricted stock, stock bonus awards, stock appreciation rights or performance awards. In May 2004, our stockholders approved the Endo
Pharmaceuticals Holdings Inc. 2004 Stock Incentive Plan. The maximum number of shares of Company stock reserved for issuance under the 2004 Stock Incentive Plan is 4,000,000 shares. The 2004 Plan provides for the grant of stock options, stock
appreciation rights, shares of restricted stock, performance shares, performance units or other share-based awards that may be granted to executive officers and other employees of the Company, including officers and directors who are employees, to
non-employee directors and to consultants to the Company. In May 2007, our stockholders approved the Endo Pharmaceuticals Holdings Inc. 2007 Stock Incentive Plan. The maximum number of shares of Company stock reserved for issuance under the 2007
Stock Incentive Plan is seven million (7,000,000) shares (subject to



F-50



---

##### Table of Contents

adjustment for certain transactions), but in no event may the total number of shares of Company stock subject to awards awarded to any one participant during any tax year of the Company exceed
seven hundred fifty thousand (750,000) shares (subject to adjustment for certain transactions). During 2009, 43,500 restricted stock units and 66,503 non-qualified stock options were granted to an executive officer of the Company as an
inducement to commence employment with the Company. The restricted stock units and non-qualified stock options were granted outside of the 2007 Stock Incentive Plan but are subject to the terms and conditions of the 2007 Stock Incentive Plan and the
applicable award agreements. Approximately 11.9 million shares were reserved for future issuance upon exercise of options granted or to be granted under the 2000, 2004 and 2007 Stock Incentive Plans. As of December 31, 2009, stock options,
restricted stock awards and restricted stock units have been granted under the Stock Incentive Plans.

Endo Pharma LLC 1997
Executive and Employee Stock Option Plans and Endo Pharma LLC 2000 Supplemental Executive and Employee Stock Option Plans

On November 25, 1997, the Company established the 1997 Employee Stock Option Plan and the 1997 Executive Stock Option Plan (collectively referred to as the 1997 Stock Option Plans). On July 17, 2000, the 1997 Stock
Option Plans were amended and restated. The Endo Pharma LLC 1997 Stock Option Plans are these amended and restated 1997 Stock Options Plans and reserved an aggregate of 25,615,339 shares of common stock of the Company held by Endo Pharma LLC for
issuance. Stock options granted under the Endo Pharma LLC 1997 Stock Option Plans expired on August 26, 2007. Upon exercise of these stock options, only currently outstanding shares of common stock of the Company held by Endo Pharma LLC were
issued. Endo Pharma LLC is a limited liability company that is no longer affiliated with the Company and in which affiliates of Kelso & Company have a controlling interest. Exercise of these stock options did not result in the issuance of
additional shares in the Company and did not dilute the ownership interests of our public stockholders.

Pursuant to the
Companys merger with Algos Pharmaceutical Corporation (referred to as Algos) and related recapitalization of the Company on July 17, 2000, the Endo Pharma LLC 2000 Supplemental Stock Option Plans were established. The Endo Pharma LLC 2000
Supplemental Stock Option Plans reserved an aggregate of 10,672,314 shares of common stock of the Company held by Endo Pharma LLC for issuance. Stock options granted under the Endo Pharma LLC 2000 Supplemental Stock Option Plans expired on
August 26, 2007. The Endo Pharma LLC 2000 Supplemental Stock Option Plans became effective on January 1, 2003, resulting in the issuance of 10,672,314 stock options to certain employees and members of management. No additional shares of
Company common stock were issued as a result of the exercise of these stock options, because these stock options were exercisable only into shares of Company common stock that were held by Endo Pharma LLC. Accordingly, exercise of these stock
options did not result in the issuance of additional shares in the Company and did not dilute the ownership interests of our public stockholders.

Stock-Based Compensation

The Company accounts for its stock-based
compensation plans in accordance with the guidance for Share-Based Payments. Accordingly, all stock-based compensation cost is measured at the grant date, based on the estimated fair value of the award, and is recognized as an expense in the income
statement over the requisite service period.

Presented below is the allocation of stock-based compensation as recorded in our
Consolidated Statements of Operations for the years ended December 31 (in thousands).



|                                             |  |      |        |      |   |        |  |   |       
|-------------------------------------------- |  | ---- | ------ | ---- | - | ------ |  | - | ------
|                                             |  | 2009 |        | 2008 |   | 2007  
|Selling, general and administrative expenses |  | $    | 17,211 |      | $ | 15,492 |  | $ | 12,397
|Research and development expenses            |  |      | 2,382  |      |   | 1,442  |  |   | 1,531 
|                                             |  |      |        |      |   |        |  |   |       
|Total stock-based compensation expense       |  | $    | 19,593 |      | $ | 16,934 |  | $ | 13,928
|                                             |  |      |        |      |   |        |  |   |       



F-51



---

##### Table of Contents

Stock Options

For all of the Companys stock-based compensation plans, the fair value of each option grant was estimated at the date of grant using
the Black-Scholes option-pricing model. Black-Scholes utilizes assumptions related to volatility, the risk-free interest rate, the dividend yield (which is assumed to be zero, as the Company has not paid cash dividends to date and does not currently
expect to pay cash dividends) and the expected term of the option. Expected volatilities utilized in the model are based mainly on the historical volatility of the Companys stock price over a period commensurate with the expected life of the
share option as well as other factors. The risk-free interest rate is derived from the U.S. Treasury yield curve in effect at the time of grant. We estimate the expected term of options granted based on our historical experience with our
employees exercise of stock options and other factors.

A summary of the activity under 2000, 2004 and 2007 Stock
Incentive Plans for the three-year period ended December 31, 2009 is as follows:



|                                               |  |                 |   |  |                               |       |                                          |      |                         |   |          
|---------------------------------------------- |  | --------------- | - |  | ----------------------------- | ----- | ---------------------------------------- | ---- | ----------------------- | - | ---------
|                                               |  | Number ofShares |   |  | WeightedAverageExercise Price |       | WeightedAverageRemainingContractual Term |      | AggregateIntrinsicValue
|Outstanding, January 1, 2007                   |  | 3,910,768       |   |  | $                             | 21.19 |                                          |      |                         |   |          
|Granted                                        |  | 1,201,663       |   |  | $                             | 30.59 |                                          |      |                         |   |          
|Exercised                                      |  | (530,462        | ) |  | $                             | 14.57 |                                          |      |                         |   |          
|Forfeited                                      |  | (222,743        | ) |  | $                             | 27.55 |                                          |      |                         |   |          
|Expired                                        |  | (23,174         | ) |  | $                             | 28.24 |                                          |      |                         |   |          
|                                               |  |                 |   |  |                               |       |                                          |      |                         |   |          
|Outstanding, December 31, 2007                 |  | 4,336,052       |   |  | $                             | 24.24 |                                          |      |                         |   |          
|Granted                                        |  | 1,371,253       |   |  | $                             | 24.78 |                                          |      |                         |   |          
|Exercised                                      |  | (150,191        | ) |  | $                             | 14.88 |                                          |      |                         |   |          
|Forfeited                                      |  | (834,753        | ) |  | $                             | 28.10 |                                          |      |                         |   |          
|Expired                                        |  | (62,979         | ) |  | $                             | 29.11 |                                          |      |                         |   |          
|                                               |  |                 |   |  |                               |       |                                          |      |                         |   |          
|Outstanding, December 31, 2008                 |  | 4,659,382       |   |  | $                             | 23.95 |                                          |      |                         |   |          
|Granted                                        |  | 2,216,544       |   |  | $                             | 19.30 |                                          |      |                         |   |          
|Exercised                                      |  | (554,827        | ) |  | $                             | 14.48 |                                          |      |                         |   |          
|Forfeited                                      |  | (300,864        | ) |  | $                             | 24.11 |                                          |      |                         |   |          
|Expired                                        |  | (861,694        | ) |  | $                             | 24.67 |                                          |      |                         |   |          
|                                               |  |                 |   |  |                               |       |                                          |      |                         |   |          
|Outstanding, December 31, 2009                 |  | 5,158,541       |   |  | $                             | 22.84 |                                          | 7.17 |                         | $ | 5,839,126
|Vested and expected to vest, December 31, 2009 |  | 4,826,935       |   |  | $                             | 23.01 |                                          | 7.05 |                         | $ | 5,491,748
|Exercisable, December 31, 2009                 |  | 2,003,703       |   |  | $                             | 23.98 |                                          | 4.95 |                         | $ | 3,410,090

The total
intrinsic value of options exercised during the years ended December 31, 2009, 2008 and 2007 was $3.6 million, $1.4 million, and $9.4 million, respectively. The weighted-average grant date fair value of the stock options granted during the
years ended December 31, 2009, 2008 and 2007 was $7.47, $9.48 and $15.11 per option, respectively, determined using the following assumptions:



|                              |  |      |   |  |      |   |  |      |  
|----------------------------- |  | ---- | - |  | ---- | - |  | ---- | -
|                              |  | 2009 |   |  | 2008 |   |  | 2007 |  
|Average expected term (years) |  | 5.22 |   |  | 4.92 |   |  | 5.50 |  
|Risk-free interest rate       |  | 2.04 | % |  | 2.8  | % |  | 4.6  | %
|Dividend yield                |  | 0.00 |   |  | 0.00 |   |  | 0.00 |  
|Expected volatility           |  | 40   | % |  | 39   | % |  | 48   | %

The weighted
average remaining requisite service period of the non-vested stock options is 2.54 years. As of December 31, 2009, the total remaining unrecognized compensation cost related to non-vested stock options amounted to $24.2 million. This
unrecognized compensation cost does not include the impact of any future stock-based compensation awards.



F-52



---

##### Table of Contents

The following table summarizes information about stock options outstanding under our 2000,
2004 and 2007 Stock Incentive Plans at December 31, 2009:

2000, 2004 and 2007 Stock Incentive Plans Options
Outstanding



|                   |  |                                           |  |                                |       |                   |           |                                           |   |                         |  |   |           
|------------------ |  | ----------------------------------------- |  | ------------------------------ | ----- | ----------------- | --------- | ----------------------------------------- | - | ----------------------- |  | - | ----------
|Number Outstanding |  | Weighted AverageRemainingContractual Life |  | Weighted AverageExercise Price |       | NumberExercisable |           | ExercisableWeighted AverageExercise Price |   | Range ofExercise Prices
|5,158,541          |  | 7.17                                      |  | $                              | 22.84 |                   | 2,003,703 |                                           | $ | 23.98                   |  | $ | 6.88-32.99

A summary
of the activity under the Endo Pharma LLC 1997 Stock Option Plans and the Endo Pharma LLC 2000 Supplemental Stock Option Plans for the three-year period ended December 31, 2009 is as follows:



|                                                       |  |                 |   |  |                               |      |                                          |   |                         |  
|------------------------------------------------------ |  | --------------- | - |  | ----------------------------- | ---- | ---------------------------------------- | - | ----------------------- | -
|                                                       |  | Number ofShares |   |  | WeightedAverageExercise Price |      | WeightedAverageRemainingContractual Term |   | AggregateIntrinsicValue
|Outstanding, January 1, 2007                           |  | 75,259          |   |  | $                             | 2.42 |                                          |   |                         |  
|Granted                                                |  |                |   |  | $                             |     |                                          |   |                         |  
|Exercised                                              |  | (75,259         | ) |  | $                             | 2.42 |                                          |   |                         |  
|Forfeited                                              |  |                |   |  | $                             |     |                                          |   |                         |  
|                                                       |  |                 |   |  |                               |      |                                          |   |                         |  
|Outstanding, December 31, 2007                         |  |                |   |  | $                             |     |                                          |   |                         |  
|Granted                                                |  |                |   |  | $                             |     |                                          |   |                         |  
|Exercised                                              |  |                |   |  | $                             |     |                                          |   |                         |  
|Forfeited                                              |  |                |   |  | $                             |     |                                          |   |                         |  
|                                                       |  |                 |   |  |                               |      |                                          |   |                         |  
|Outstanding, December 31, 2008                         |  |                |   |  | $                             |     |                                          |   |                         |  
|Granted                                                |  |                |   |  | $                             |     |                                          |   |                         |  
|Exercised                                              |  |                |   |  | $                             |     |                                          |   |                         |  
|Forfeited                                              |  |                |   |  | $                             |     |                                          |   |                         |  
|                                                       |  |                 |   |  |                               |      |                                          |   |                         |  
|Outstanding, vested and exercisable, December 31, 2009 |  |                |   |  | $                             |     |                                          |  |                         | 
|                                                       |  |                 |   |  |                               |      |                                          |   |                         |  

The total intrinsic value of options exercised during
the year ended December 31, 2007 was $2.3 million.

As of December 31, 2008, there was no remaining unrecognized
compensation cost related to non-vested stock options granted pursuant to the Endo Pharma LLC 1997 Stock Option Plans and the Endo Pharma LLC 2000 Supplemental Stock Option Plans. Additionally, no options were available for grant under the Endo
Pharma LLC 1997 Stock Option Plans and the Endo Pharma LLC 2000 Supplemental Stock Option Plans at December 31, 2009.

Restricted Stock Awards

During the year ended December 31, 2007, the Company granted restricted stock
awards to non-employee directors of the Company. We recognize expense for our restricted stock using the straight-line method over the requisite service period. The total value of compensation expense for restricted stock is equal to the closing
price of Endo shares on the date of grant.



F-53



---

##### Table of Contents

A summary of our restricted stock activity during the years ended December 31, 2009,
2008 and 2007 is presented below:



|                              |  |                 |   |  |                                    |       |                         |   |        
|----------------------------- |  | --------------- | - |  | ---------------------------------- | ----- | ----------------------- | - | -------
|                              |  | Number ofShares |   |  | WeightedAverageFair Value PerShare |       | AggregateIntrinsicValue
|Non-vested, January 1, 2007   |  |                |   |  | $                                  |      |                         |   |        
|Granted                       |  | 13,572          |   |  | $                                  | 29.84 |                         |   |        
|Forfeited                     |  |                |   |  | $                                  |      |                         |   |        
|Vested                        |  |                |   |  | $                                  |      |                         | $ |       
|                              |  |                 |   |  |                                    |       |                         |   |        
|Non-vested, December 31, 2007 |  | 13,572          |   |  | $                                  | 29.84 |                         |   |        
|Granted                       |  |                |   |  | $                                  |      |                         |   |        
|Forfeited                     |  | (1,131          | ) |  | $                                  | 29.84 |                         |   |        
|Vested                        |  | (6,786          | ) |  | $                                  | 29.84 |                         | $ | 175,622
|                              |  |                 |   |  |                                    |       |                         |   |        
|Non-vested, December 31, 2008 |  | 5,655           |   |  | $                                  | 29.84 |                         |   |        
|Granted                       |  |                |   |  | $                                  |      |                         |   |        
|Forfeited                     |  | (1,131          | ) |  | $                                  | 29.84 |                         |   |        
|Vested                        |  | (4,524          | ) |  | $                                  | 29.84 |                         | $ | 92,832 
|                              |  |                 |   |  |                                    |       |                         |   |        
|Non-vested, December 31, 2009 |  |                |   |  | $                                  |      |                         |   |        
|                              |  |                 |   |  |                                    |       |                         |   |        

As of December 31, 2009, there was no unrecognized compensation cost related to non-vested
restricted stock awards.

Restricted Stock Units

During the years ended December 31, 2009 and 2008, the Company granted restricted stock units to employees and non-employee directors of
the Company as part of their annual stock compensation award. We recognize expense for our restricted stock units using the straight-line method over the requisite service period. The total value of compensation expense for restricted stock units is
equal to the closing price of Endo shares on the date of grant.

A summary of our restricted stock units activity during the
years ended December 31, 2009 and 2008 are presented below:



|                               |  |                 |   |  |                         |           
|------------------------------ |  | --------------- | - |  | ----------------------- | ----------
|                               |  | Number ofShares |   |  | AggregateIntrinsicValue
|Outstanding, January 1, 2008   |  |                |   |  |                         |           
|Granted                        |  | 639,396         |   |  |                         |           
|Forfeited                      |  | (91,043         | ) |  |                         |           
|Vested                         |  |                |   |  |                         |           
|                               |  |                 |   |  |                         |           
|Outstanding, December 31, 2008 |  | 548,353         |   |  |                         |           
|Granted                        |  | 1,133,186       |   |  |                         |           
|Forfeited                      |  | (86,286         | ) |  |                         |           
|Vested                         |  | (118,012        | ) |  |                         |           
|                               |  |                 |   |  |                         |           
|Outstanding, December 31, 2009 |  | 1,477,241       |   |  | $                       | 30,312,985

The weighted
average remaining requisite service period of the non-vested restricted stock units is 2.79 years. The weighted-average grant date fair value of the restricted stock units granted during the year ended December 31, 2009 and 2008 was $19.43 and
$25.09 per unit, respectively. As of December 31, 2009, the total remaining unrecognized compensation cost related to non-vested restricted stock units amounted to $24.7 million. This unrecognized compensation cost does not include the impact
of any future stock-based compensation awards.



F-54



---

##### Table of Contents

Share Repurchase Program

In April 2008, our Board of Directors approved a share repurchase program, authorizing the Company to repurchase in the aggregate up to $750
million of shares of its outstanding common stock. Purchases under this program may be made from time to time in open market purchases, privately-negotiated transactions, and accelerated stock repurchase transactions or otherwise, as determined by
Endo.

This program does not obligate Endo to acquire any particular amount of common stock. The pace of repurchase activity
will depend on factors such as levels of cash generation from operations, cash requirements for investment in the Companys business, repayment of future debt, if any, current stock price, market conditions and other factors. The share
repurchase program may be suspended, modified or discontinued at any time. As a result of a two-year extension approved by the Board of Directors in February 2010, the share repurchase plan is set to expire in April 2012.

As described in Note 17, we entered into a privately-negotiated $325.0 million accelerated share repurchase agreement as part of our broader
share repurchase program described above. Pursuant to the accelerated share repurchase agreement, we purchased approximately 11.9 million shares of our common stock on April 15, 2008. On August 14, 2008, Endo received approximately
1.4 million additional shares of our common stock based on the volume-weighted average price of our common stock during a specified averaging period set forth by the accelerated share repurchase agreement. In addition to the accelerated share
repurchase, beginning in April 2008, we made open market purchases of our common stock as part of our broader share repurchase program. As of December 31, 2008, we purchased approximately 4.5 million shares of our common stock on the open
market for a total purchase price of approximately $99.8 million. We did not purchase any shares of our common stock during the year ended December 31, 2009.

NOTE 13. RELATED PARTY TRANSACTIONS

Tax Sharing Agreement.On July 14, 2000, Endo Pharma LLC was formed in connection with our acquisition of Algos Pharmaceutical Corporation (referred to as Algos) to ensure that the stock options granted pursuant to the Endo Pharma LLC Stock Option Plans
diluted only the Endo common stock held by persons and entities that held such shares prior to our merger with Algos. Endo Pharma LLC is a limited liability company that is no longer affiliated with the Company but had historically held significant
portions of our common stock, in which affiliates of Kelso & Company and certain former members of management have an interest. Upon the exercise of these stock options, only currently outstanding shares of our common stock held by Endo
Pharma LLC were delivered. Because Endo Pharma LLC, and not us, had provided the shares upon the exercise of these options, we entered into a tax sharing agreement (as amended) with Endo Pharma LLC under which we were required to pay to Endo Pharma
LLC the amount of the tax benefits usable by us as a result of the exercise of these stock options into shares of our common stock held by Endo Pharma LLC.

During the year ended December 31, 2007, the final 75,259 shares underlying stock options granted under the Endo Pharma LLC stock option plans were exercised. We were obligated, under our amended tax
sharing agreement, to pay to Endo Pharma LLC an additional tax benefit amount of approximately $0.7 million. The estimated tax benefit amount attributable to these exercises and any additional tax benefits attributable to the exercise of stock
options granted under the Endo Pharma LLC stock option plans in 2007 were paid during the twelve months ended December 31, 2008. This represented the final tax sharing payment due to Endo Pharma LLC.

NOTE 14. COMMITMENTS and CONTINGENCIES

Manufacturing, Supply and Other Service Agreements

We contract with
various third party manufacturers and suppliers to provide us with raw materials used in our products and finished goods. Our most significant agreements are with Novartis Consumer Health, Inc. and Novartis AG (collectively referred to as Novartis),
Teikoku Seiyaku Co., Ltd., Mallinckrodt Inc., Almac Pharma



F-55



---

##### Table of Contents

Services, Sharp Corporation, and Ventiv Commercial Services, LLC. If for any reason we are unable to obtain sufficient quantities of any of the finished goods or raw materials or components
required for our products, it could have a material adverse effect on our business, financial condition, results of operations and cash flows.

Novartis Consumer Health, Inc.

On May 3, 2001, we entered into a
long-term manufacturing and development agreement with Novartis Consumer Health, Inc. whereby Novartis Consumer Health, Inc. has agreed to manufacture certain of our commercial products and products in development. We are required to purchase, on an
annual basis, a minimum amount of product from Novartis Consumer Health, Inc. The purchase price per product is equal to a predetermined amount per unit, subject to periodic adjustments. This agreement had a five-year term, with automatic five-year
renewals thereafter. In August 2005, we extended this agreement until 2011. We are required to purchase a minimum of approximately $20 million per year in 2010 and approximately $21 million in 2011. Either party may terminate this agreement on
three-years notice, effective at any time after the initial five-year term. Either party may also terminate this agreement on account of a material breach by the other. Amounts purchased pursuant to this agreement were $64.7 million, $55.4
million and $30.7 million for the years ended December 31, 2009, 2008 and 2007, respectively.

Pursuant to the March 2008 Voltaren® Gel License and Supply Agreement (referred to as the Voltaren® Gel Agreement) with Novartis AG and Novartis Consumer Health, Inc. Endo has agreed to purchase from Novartis all of
its requirements for Voltaren® Gel during the entire term of the Voltaren® Gel Agreement. The price of product purchased under the Voltaren® Gel Agreement is fixed for the first year and subject to annual changes based upon changes in the producer price index and raw materials. Amounts
purchased pursuant to the Voltaren® Gel Agreement were $13.1 million and $23.4 million for the years ended
December 31, 2009 and 2008, respectively.

As part of the Voltaren® Gel Agreement, we also agreed to undertake advertising and promotion of Voltaren® Gel (referred to as A&P Expenditures), subject to certain thresholds set forth in the Voltaren® Gel Agreement. We agreed to spend a minimum of $15.0 million on A&P Expenditures during the first Voltaren® Gel Agreement Year which ended on June 30, 2009. During the second Voltaren® Gel Agreement Year beginning on July 1, 2009 and extending through June 30, 2010, we agreed to spend a
minimum of $20 million on A&P Expenditures. In subsequent Agreement Years, the minimum A&P Expenditures set forth in the Voltaren® Gel Agreement are determined based on a percentage of net sales of Voltaren® Gel.

Amounts incurred by Endo for such
A&P Expenditures were $15.6 million and $9.4 million for the years ended December 31, 2009 and 2008, respectively.

Teikoku Seiyaku Co., Ltd.

Under the terms of our agreement (referred to as the Teikoku
Agreement) with Teikoku Seiyaku Co. Ltd. (referred to as Teikoku), a Japanese manufacturer, Teikoku manufactures Lidoderm® at its Japanese facility for commercial sale by us in the United States. We also have an option to extend the supply area to other territories. The agreement contains
certain provisions requiring Teikoku to qualify an additional manufacturing site, at our request, should we meet certain defined purchasing levels for a defined period of time. On April 24, 2007, we amended the Teikoku agreement (referred to as
the Amended Agreement). The material components of the Amended Agreement are as follows:



| |  |  | We agreed to purchase a minimum number of patches per year through 2012, representing the noncancelable portion of the Amended Agreement.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Teikoku agreed to fix the supply price of Lidoderm® for a period of time after which the price will be adjusted at future dates certain based on a price index defined in the Amended Agreement. Since future price
changes are unknown, we have used prices currently existing under the Amended Agreement, and
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



F-56



---

##### Table of Contents

| | estimated our minimum purchase requirement to be approximately $32 million per year through 2012. The minimum purchase requirement shall remain in effect subsequent to 2012, except that Endo has
the right to terminate the Amended Agreement after 2012, if we fail to meet the annual minimum requirement.
| | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Following cessation of our obligation to pay royalties to Hind Healthcare Inc. (referred to as Hind) under the Sole and Exclusive License Agreement
dated as of November 23, 1998, as amended, between Hind and Endo, we will pay to Teikoku annual royalties based on our annual net sales of Lidoderm®.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The Amended Agreement will expire on December 31, 2021, unless terminated in accordance with its terms. Either party may terminate this Agreement,
upon thirty (30) days written notice, in the event that Endo fails to purchase the annual minimum quantity for each year after 2012 (e.g., 2013 through 2021) upon thirty (30) days written notice. Notwithstanding the foregoing, after
December 31, 2021, the Amended Agreement shall be automatically renewed on the first day of January each year unless (i) we and Teikoku agree to terminate the Amended Agreement upon mutual written agreement or (ii) either we or
Teikoku terminates the Amended Agreement with 180-day written notice to the other party, which notice shall not in any event be effective prior to July 1, 2022.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Amounts purchased pursuant to this agreement were $142.3 million, $152.2 million, and $152.3 million for the years ended December 31,
2009, 2008 and 2007, respectively.

Mallinckrodt Inc.

Under the terms of our agreement with Mallinckrodt Inc. (referred to as Mallinckrodt), (referred to as the Mallinckrodt Agreement)
Mallinckrodt manufactures and supplies to us narcotic active drug substances, in bulk form, and raw materials for inclusion in our controlled substance pharmaceutical products. There is no minimum annual purchase commitment under the Mallinckrodt
agreement. However, we are required to purchase a fixed percentage of our annual requirements of each narcotic active drug substance from Mallinckrodt. The purchase price for these substances is equal to a fixed amount, adjusted on an annual basis.
The initial term of this agreement is July 1, 1998 until June 30, 2013, with an automatic renewal provision for unlimited successive one-year periods. Either party may terminate the Mallinckrodt agreement in the event of a material breach
by the other party. Amounts purchased pursuant to this agreement were $20.7 million, $15.8 million, and $16.5 million for the years ended December 31, 2009, 2008 and 2007, respectively.

Almac Pharma Services

Under the terms of our agreement (referred to as the Almac Agreement) with Almac Pharma Services (referred to as Almac), a European manufacturer, Almac manufactures Frova® at its Ireland facility for commercial sale by us in the United States. The Almac agreement with Almac will expire
on January 1, 2011, unless terminated sooner in accordance with its terms and can be extended beyond January 1, 2011 upon mutual agreement by both parties. If no agreement as to any extension or termination is reached six months prior to
the end of the term, then the agreement will automatically renew for a period of twelve months. Almac has agreed to fix the supply price of Frova® for a period of time after which the price will be adjusted at future dates certain based on a price index defined in the agreement, subject to an annual maximum
increase. Amounts purchased pursuant to the Almac Agreement were $0.9 million and $0.9 million for the years ended December 31, 2009 and 2008, respectively.

Sharp Corporation

Under the terms of our agreement
(referred to as the Sharp Agreement) with Sharp Corporation (referred to as Sharp), a U.S. manufacturer, Sharp performs certain services for Endo including the packaging and labeling of Lidoderm® at its facility in Allentown, Pennsylvania, for commercial sale by us in the United States. The Sharp Agreement will expire on March 1, 2011, subject to renewal
for additional one-year periods upon mutual



F-57



---

##### Table of Contents

agreement by both parties. Endo has the right to terminate the Sharp Agreement at any time upon ninety (90) days written notice. Amounts purchased pursuant to the Sharp agreement were
$6.3 million, $5.3 million and $5.1 million for the years ended December 31, 2009, 2008 and 2007, respectively.

Ventiv Commercial Services, LLC

On May 15, 2008, we entered into a services agreement
(referred to as the Ventiv Agreement) with Ventiv Commercial Services, LLC (referred to as Ventiv). Under the terms of the Ventiv Agreement, Ventiv will provide to Endo certain sales and marketing services through a contracted field force and other
sales management positions, collectively referred to as the Ventiv Field Force. The Ventiv Field Force will promote primarily Voltaren® Gel and will be required to perform a minimum number of face-to-face one-on-one discussions with physicians and other healthcare practitioners for the purpose of
promoting Voltaren® Gel and other Endo products within their respective approved indications during each year of
the Ventiv Agreement, subject to certain provisions.

Under the terms of the Ventiv Agreement, we incurred
a one-time implementation fee that we recognized in selling, general, and administrative expense in the second quarter of 2008. In addition, each month we are required to pay Ventiv a monthly fixed fee during the term of the Ventiv Agreement based
on a pre-approved budget. Included in the fixed monthly fee are certain costs such as the Ventiv sales representative and district manager salaries, Ventiv field force travel, and office and other expenses captured on routine expense reports, as
well as a fixed management fee. Ventiv will also be eligible to earn a performance-based bonus equal to the fixed management fee during each year of the Ventiv Agreement. This performance-based bonus is payable upon the achievement of certain
conditions, including the number of Voltaren® Gel tubes sold and the number of Details achieved.

The Ventiv Agreement will expire on June 30, 2010. Among other standard and customary termination rights granted under the Ventiv
Agreement, we may terminate the Ventiv Agreement at our sole discretion at any time upon 120 days written prior notice to Ventiv, at which time we may be required to pay Ventiv a termination fee of up to $1 million. In January 2009, we agreed
to certain changes to the Ventiv Agreement allowing for modifications to certain provisions, including the modification to the termination rights such that Endo is now permitted to terminate the Ventiv Agreement at our sole discretion at any time
upon 60 days written prior notice. The Ventiv Agreement can also be terminated by either party upon reasonable written notice, if either party has committed a material breach that has not been remedied within thirty (30) days from the
giving of written notice.

In May 2009, we amended the Ventiv Agreement to change certain provisions including a reduction in
the Ventiv Field Force from 275 to 80 sales representatives effective June 1, 2009.

General

In addition to the manufacturing and supply agreements described above, we have agreements with (1) UPS Supply Chain Solutions, Inc. for
customer service support, warehouse and distribution services and certain financial functions that expires in 2010 and (2) various companies for clinical development services. Although we have no reason to believe that the parties to these
agreements will not meet their obligations, failure by any of these third parties to honor their contractual obligations may have a materially adverse effect on our business, financial condition, results of operations and cash flows.

Milestones and Royalties

See Note 6 for a complete description of future milestone and royalty commitments pursuant to our acquisitions, license and collaboration agreements.

Employment Agreements

We have entered into employment agreements with certain members of management.



F-58



---

##### Table of Contents

Research Contracts

We routinely contract with universities, medical centers, contract research organizations and other institutions for the conduct of research
and clinical studies on our behalf. These agreements are generally for the duration of the contracted study and contain provisions that allow us to terminate prior to completion.

Legal Proceedings

While we cannot predict the outcome of our ongoing legal proceedings, we believe that the claims against us are without merit, and we intend to vigorously defend our position. An adverse outcome in any of these proceedings could have a
material adverse effect on our current and future financial position, results of operations and cash flows.

Withdrawal of
Redux, Legal Proceedings, Insurance Claims, and Related Contingencies

In September 1997, Indevus announced a market
withdrawal of its first commercial prescription product, the anti-obesity medication Redux (dexfenfluramine hydrochloride capsules C-IV), which had been launched in June 1996 by its licensee, American Home Products Corporation, which became Wyeth,
and was later acquired by Pfizer. The withdrawal of Redux was based on a preliminary analysis by the FDA of potential abnormal echocardiogram findings associated with certain patients taking Redux or the combination of fenfluramine with phentermine.
Following the withdrawal of Redux, the Company was named, together with other pharmaceutical companies, as a defendant in several thousand product liability legal actions in federal and state courts relating to the use of Redux and other weight loss
drugs. Less than 100 lawsuits are still pending against the Company. In May 2001, Indevus entered into the AHP Indemnity and Release Agreement with Wyeth pursuant to which Wyeth agreed to indemnify Indevus against certain classes of product
liability cases filed against Indevus related to Redux and Indevus agreed to dismiss Redux related claims against Wyeth. Under the terms of the AHP Indemnity and Release Agreement, Wyeth has agreed to indemnify Indevus for claims brought by
plaintiffs who initially opted out of Wyeths national class action settlement of diet drug claims and claimants alleging primary pulmonary hypertension. In addition, Wyeth has agreed to fund all future legal costs of Indevus related to the
defense of Redux-related product liability cases. Also, pursuant to the AHP Indemnity and Release Agreement, Wyeth agreed to fund additional insurance coverage to supplement the Companys existing product liability insurance. The Company
believes its total insurance coverage, including the additional insurance coverage funded by Wyeth, is sufficient to address the potential remaining Redux product liability exposure. However, there can be no assurance Redux claims will not exceed
the amount of insurance coverage available to the Company and Wyeths indemnification obligations under the AHP Indemnity and Release Agreement. If such insurance coverage and Wyeth indemnification is not sufficient to satisfy Redux-related
claims, the payment of amounts to satisfy such claims may have a material adverse effect on the Companys business, results of operations or financial condition. Prior to the effectiveness of the AHP Indemnity and Release Agreement,
Redux-related defense costs of Indevus were paid by, or subject to reimbursement from, Indevuss product liability insurers. To date, there have been no Redux-related product liability settlements or judgments paid by Indevus or their insurers.

As of December 31, 2009, the Company had an outstanding insurance claim of approximately $3.0 million, relating to
payments made by the Company to the group of law firms defending the Company in the Redux-related product liability litigation, for services rendered by such law firms through May 30, 2001. The full amount of the Companys current
outstanding insurance claim is made pursuant to the Companys product liability policy issued to Indevus by Reliance Insurance Company (Reliance). In October 2001, the Commonwealth Court of Pennsylvania granted an Order of Liquidation to the
Insurance Commissioner of Pennsylvania to begin liquidation proceedings against Reliance. It is uncertain when, if ever, the Company will collect any of its remaining $3.0 million of claims. If the Company incurs additional product liability defense
and other costs subject to claims on the Reliance product liability policy up to the $5.0 million limit of the policy, the Company will have to pay such costs without expectation of reimbursement and will incur charges to operations for all or a
portion of such payments.



F-59



---

##### Table of Contents

Indevus Tender Offer

During January 2009, multiple lawsuits (the Actions) were brought against Endo, Indevus, Endos wholly-owned merger
subsidiary, BTB Purchaser Inc. (the Purchaser) and members of the Indevus board of directors arising out of the transaction between Endo and Indevus (the Transaction). Three of those suits, respectively docketed as:
(i) Gober v. Endo Pharmaceuticals, et al., C.A. No. 4276 (Del. Ch.) (the Gober Action); (ii) Mishket v. Cooper, et al., C.A. No. 4299 (the Mishket Action); and (iii) Hell v. Indevus
Pharmaceuticals, et al., C.A. No. 4327 (the Hell Action) were filed in the Delaware Court of Chancery. Two others, respectively docketed as Schroeder v. Endo Pharmaceuticals, et al., 09-0126 (the Schroeder
Action) and Wexler v. Indevus Pharmaceuticals, et al., 09-0166 (the Wexler Action) were filed in the Superior Court of the Commonwealth of Massachusetts.

Each of the suits was purportedly brought individually and on behalf of all public stockholders of Indevus. The suits generally alleged
similar claims, including claims that alleges that Indevuss director defendants breached their fiduciary duties to Indevuss stockholders in connection with the Offer and that each of the defendants aided and abetted such alleged breach
of Indevuss director defendants fiduciary duties. In addition, the Hell Action also alleged that the Indevus Schedule 14D-9 Solicitation Statement failed to disclose material information about the Offer, that the defendant directors did
not protect against purported conflicts of interest and that the terms of the Merger Agreement prevented stockholders of Indevus from receiving appropriate consideration for their Indevus shares. Based on the allegations, each of the plaintiffs
sought similar relief in the Actions including declaration of their respective Action as a class action, injunctive relief enjoining preliminarily and permanently the Offer, rescinding, to the extent already implemented, the Offer or any of the
terms thereof or awarding rescissory damages, directing that the defendants account to plaintiff and other members of the purported class for all damages caused by them and account for all profits and any special benefits obtained as a result of
breaches of their fiduciary duties to the purported stockholder and other members of the purported class, awarding plaintiff the costs of their respective Action including a reasonable allowance for the expenses of plaintiffs attorneys and
experts and granting plaintiff and other members of the purported class such further relief as the court deemed just and proper.

On February 4, 2009, the parties to the Gober Action, Mishket Action, Wexler Action, and Schroeder Action executed a Memorandum of Understanding (the Memorandum of Understanding), which set forth the terms and conditions
for settlement of each of those Actions. The Memorandum of Understanding did not include the plaintiff in the Hell Action. The parties agreed that, after arms length discussions between and among the parties, Indevus would provide additional
supplemental disclosures to its Schedule 14D-9 and that the Company Termination Fee, as defined in the Merger Agreement, would be reduced by 10% (from $20,000,000 to $18,000,000). In exchange, following confirmatory discovery, the parties would
attempt in good faith to agree to a stipulation of settlement and, upon court approval in the Gober Action of that stipulation, the Plaintiffs would dismiss each of the other above-referenced actions with prejudice, and the Defendants would be
released from any claims arising out of the Transaction. The Defendants agreed not to oppose any fee application by Plaintiffs counsel that did not exceed $700,000 in the aggregate. The Company paid this $700,000 in 2009.

On July 2, 2009, the Schroeder Action was voluntarily dismissed with prejudice as to Plaintiff Schroeder. On August 26, 2009,
after a period of confirmatory discovery, a Stipulation of Settlement (the Stipulation) was filed with the Court of Chancery in the Gober Action. On August 28, 2009, the Court approved a proposed Scheduling Order for the settlement of the Gober
Action, setting a hearing on the fairness of the proposed settlement on November 23, 2009. In accordance with the terms of the Scheduling Order, notice of the proposed settlement was mailed to shareholders on or before September 28, 2009.

On November 23, 2009, the Court certified the Gober Action as a class action and approved the settlement under the terms
described in the Stipulation. There were no objections filed with the Court or communicated to any parties with respect to the settlement. Although the certification of the class and settlement of the Gober Action legally terminated the claims
brought by the other plaintiffs in the Actions, as required under the terms of



F-60



---

##### Table of Contents

the Stipulation, plaintiffs in the Mishket and Wexler Actions dismissed their Actions with prejudice with respect to all defendants. On December 11, 2009, plaintiff in the Hell Action
voluntarily dismissed his Action with prejudice with respect to all defendants.

Throughout the course of the Actions, Endo
and Purchaser denied and continue to deny, that either of them committed or aided and abetted in the commission of any violation of law of any kind or engaged in any of the wrongful acts alleged in the above-referenced actions. Endo and Purchaser
each expressly maintain that it diligently and scrupulously complied with its legal duties, and executed the Memorandum of Understanding and Stipulation of Settlement solely to eliminate the burden and expense of further litigation.

Department of Health and Human Services Subpoena

In January 2007, the Company received a subpoena issued by the United States Department of Health and Human Services,
Office of Inspector General (referred to as OIG). The subpoena requests documents relating to Lidoderm®
(lidocaine patch 5%), focused primarily on the sale, marketing and promotion of Lidoderm® . The Company is
cooperating with the government. At this time, the Company cannot predict or determine the outcome of the above matter or reasonably estimate the amount or range of amounts of fines or penalties, if any, that might result from a settlement or an
adverse outcome.

Pricing Litigation

A number of cases brought by local and state government entities are pending that allege generally that our wholly-owned subsidiary, Endo Pharmaceuticals Inc. (referred to as EPI) and numerous other
pharmaceutical companies reported false pricing information in connection with certain drugs that are reimbursable under Medicaid. These cases generally seek damages, treble damages, disgorgement of profits, restitution and attorneys fees.

The federal court cases have been consolidated in the United States District Court for the District of Massachusetts under
the Multidistrict Litigation Rules as In re: Pharmaceutical Industry Average Wholesale Price Litigation, MDL 1456. The following previously reported cases are pending in MDL 1456 and have been consolidated into one consolidated complaint:
City of New York v. Abbott Laboratories, Inc., et al.; County of Albany v. Abbott Laboratories, Inc., et al.; County of Allegany v. Abbott Laboratories, Inc., et al.; County of Broome v. Abbott Laboratories, Inc., et al.;
County of Cattaraugus v. Abbott Laboratories, Inc., et al; County of Cayuga v. Abbott Laboratories, Inc., et al.; County of Chautauqua v. Abbott Laboratories, Inc., et al.; County of Chemung v. Abbott Laboratories, Inc., et
al.; County of Chenango v. Abbott Laboratories, Inc., et al.; County of Columbia v. Abbott Laboratories, Inc., et al.; County of Cortland v. Abbott Laboratories, Inc., et al.; County of Dutchess v. Abbott Laboratories,
Inc., et al.; County of Essex v. Abbott Laboratories, Inc., et al.; County of Fulton v. Abbott Laboratories, Inc., et al.; County of Genesee v. Abbott Laboratories, Inc., et al.; County of Greene v. Abbott Laboratories,
Inc., et al.; County of Herkimer v. Abbott Laboratories, Inc., et al.; County of Jefferson v. Abbott Laboratories, Inc., et al.; County of Lewis v. Abbott Laboratories, Inc., et al.; County of Madison v. Abbott
Laboratories, Inc., et al.; County of Monroe v. Abbott Laboratories, Inc., et al.; County of Niagara v. Abbott Laboratories, Inc., et al.; County of Oneida v. Abbott Laboratories, Inc., et al.; County of Onondaga v.
Abbott Laboratories, Inc., et al.; County of Ontario v. Abbott Laboratories, Inc., et al.; County of Orleans v. Abbott Laboratories, Inc., et al.; County of Putnam v. Abbott Laboratories, Inc., et al.; County of
Rensselaer v. Abbott Laboratories, Inc., et al.; County of Rockland v. Abbott Laboratories, Inc., et al.; County of St. Lawrence v. Abbott Laboratories, Inc., et al.; County of Saratoga v. Abbott Laboratories, Inc., et al.;
County of Schuyler v. Abbott Laboratories, Inc., et al.; County of Seneca v. Abbott Laboratories, Inc., et al.; County of Steuben v. Abbott Laboratories, Inc., et al.; County of Suffolk v. Abbott Laboratories, Inc., et
al.; County of Tompkins v. Abbott Laboratories, Inc., et al.; County of Ulster v. Abbott Laboratories, Inc., et al.; County of Warren v. Abbott Laboratories, Inc., et al.; County of Washington v. Abbott Laboratories,
Inc., et al.; County of Wayne v. Abbott Laboratories, Inc., et al.; County of Westchester v. Abbott Laboratories, Inc., et al; County of Wyoming v. Abbott Laboratories, Inc., et al.; and County of Yates v. Abbott
Laboratories, Inc., et al.



F-61



---

##### Table of Contents

In addition, a previously reported case originally filed in the Southern District of New
York, County of Orange v. Abbott Laboratories, Inc., et al., has been transferred to the MDL and consolidated with the cases listed above.

On January 22, 2010, without admitting any liability or wrongdoing, EPI and the plaintiffs reached an agreement in principle to resolve the foregoing federal cases brought by New York City and
the New York counties on terms that are not material to the companys financial condition.

Three previously reported
cases, County of Erie v. Abbott Laboratories, Inc., et al., originally filed in the Supreme Court of the State of New York, Erie County, County of Oswego v. Abbott Laboratories, Inc., et al., originally filed in the Supreme Court of
the State of New York, Oswego County, and County of Schenectady v. Abbott Laboratories, Inc., et al., originally filed in the Supreme Court of the State of New York, Schenectady County, have been coordinated by the New York Litigation
Coordinating Panel in the Supreme Court of the State of New York, Erie County.

There is a previously reported case pending in
the Circuit Court of Montgomery County, Alabama against EPI and numerous other pharmaceutical companies: State of Alabama v. Abbott Laboratories, Inc., et al.

There is a previously reported case pending in the Third Judicial District Court of Salt Lake County, Utah against EPI and numerous other pharmaceutical companies: State of Utah v. Actavis US, Inc., et
al., Civ. Action No. 070913719.

There is a previously reported case pending in the MDL against EPI and numerous
other pharmaceutical companies: State of Iowa v. Abbott Laboratories, Inc., et al., Civ. Action No. 4:07-cv-00461.

There is a previously reported case against EPI and numerous other pharmaceutical companies, State of Mississippi v. Abbott Laboratories, Inc., et al., originally filed in the Chancery Court of Hinds County, Mississippi. The State of
Mississippi offered to enter an agreed order of dismissal with respect to EPI, and EPI filed a notice of acceptance of that offer in Hinds County Chancery Court.

The Company intends to contest all of the above cases vigorously and to explore other options as appropriate in the best interests of the Company. Litigation similar to that described above may also be
brought by other plaintiffs in various jurisdictions. However, we cannot predict the timing or outcome of any such litigation, or whether any such litigation will be brought against the Company.

Paragraph IV Certifications on Lidoderm®

On January 15,
2010, the Company and the holders of the Lidoderm® NDA and relevant patent, Teikoku Seiyaku Co., Ltd., and
Teikoku Pharma USA, Inc. received a Paragraph IV Certification Notice under 21 U.S.C. 355(j) from Watson Laboratories, Inc. advising of the filing of an Abbreviated New Drug Application (ANDA) for a generic version Lidoderm® (lidocaine topical patch 5%). The Paragraph IV Certification Notice refers to U.S. Patent No. 5,827,529, which
covers the formulation of Lidoderm®, a topical patch to relieve the pain of post herpetic neuralgia launched in
1999. This patent is listed in the FDAs Orange Book and expires in October 2015. As a result of this Notice, on February 19, 2010, the Company, Teikoku Seiyaku Co., Ltd. and Teikoku Pharma USA, Inc. filed a lawsuit against Watson
Laboratories, Inc, in the United States District Court of the District of Delaware. Because the suit was filed within the 45-day period under the FDC Act for filing a patent infringement action, we believe that it triggered an automatic 30-month
stay of approval under the Act. Endo intends, and has been advised by Teikoku that they too intend, to vigorously defend Lidoderms intellectual property rights and to pursue all available legal and regulatory avenues in defense of Lidoderm,
including enforcement of the products intellectual property rights and approved labeling. We cannot, however, predict or determine the timing or outcome of any of these litigations but will explore all options as appropriate in the best
interests of the Company.



F-62



---

##### Table of Contents

Paragraph IV Certifications on Opana® ER

On December 14, 2007, the Company received a notice from IMPAX Laboratories , Inc. (referred to as IMPAX) advising of the FDAs apparent acceptance for substantive review, as of
November 23, 2007, of IMPAXs amended ANDA for a generic version of Opana® ER (oxymorphone
hydrochloride extended-release tablets CII). IMPAX stated in its letter that the FDA requested IMPAX to provide notification to us and Penwest of any Paragraph IV certifications submitted with its ANDA, as required under section 355(j) of the
Federal Food, Drug and Cosmetics Act, or the FDC Act. Accordingly, IMPAXs letter included notification that it had filed Paragraph IV certifications with respect to Penwests U.S. Patent Nos. 7,276,250, 5,958,456 and 5,662,933, which
cover the formulation of Opana® ER. These patents are listed in the FDAs Orange Book and expire in 2022,
2013 and 2013, respectively. The Companys Opana® ER product had new dosage form exclusivity that prevented
final approval of any ANDA by the FDA until the exclusivity expired on June 22, 2009. In addition, because IMPAXs application referred to patents owned by Penwest and contained a Paragraph IV certification under section 355(j)
of the FDC Act, we believe IMPAXs notice triggered the 45-day period under the FDC Act in which we and Penwest could file a patent infringement action and trigger the automatic 30-month stay of approval. Subsequently, on January 25, 2008,
the Company and Penwest filed a lawsuit against IMPAX in the United States District Court for the District of Delaware in connection with IMPAXs ANDA. The lawsuit alleges infringement of certain Orange Book-listed U.S. patents that cover the
Opana® ER formulation. In response, IMPAX filed an answer and counterclaims, asserting claims for
declaratory judgment that the patents listed in the Orange Book are invalid, not infringed and/or unenforceable. Additionally, the lawsuit previously filed by the Company and Penwest on November 15, 2007 against IMPAX remains
pending.

On June 16, 2008, the Company received a notice from IMPAX that it had filed an amendment to
its ANDA containing Paragraph IV certifications for the 7.5 mg, 15 mg and 30 mg strengths of oxymorphone hydrochloride extended release tablets. The notice covers Penwests U.S. Patent Nos. 7,276,250, 5,958,456 and 5,662,933. Subsequently, on
July 25, 2008, the Company and Penwest filed a lawsuit against IMPAX in the United States District Court for the District of Delaware in connection with IMPAXs amended ANDA. The lawsuit alleges infringement of certain Orange Book-listed
U.S. patents that cover the Opana® ER formulation. In response, IMPAX filed an answer and counterclaims,
asserting claims for declaratory judgment that the patents listed in the Orange Book are invalid, not infringed and/or unenforceable. Additionally, the lawsuits previously filed by the Company and Penwest against IMPAX remain pending. All three of
these pending suits against IMPAX were transferred to the United States District Court for the District of New Jersey.

In February 2008, we along with Penwest, received a notice from Actavis South Atlantic LLC (Actavis), advising of the filing by Actavis of an ANDA containing a Paragraph IV certification under 21 U.S.C.
Section 355(j) for a generic version of Opana® ER (oxymorphone hydrochloride extended-release tablets CII).
The Actavis Paragraph IV certification notice refers to Penwests U.S. Patent Nos. 5,128,143, 5,662,933, 5,958,456 and 7,276,250, which cover the formulation of Opana® ER. These patents are listed in the FDAs Orange Book and expire or expired in 2008, 2013, 2013 and 2023, respectively. In addition to these patents, Opana® ER has a new dosage form (referred to as NDA) exclusivity that prevents final approval of any ANDA by the FDA until
the exclusivity expires on June 22, 2009. Subsequently, on March 28, 2008, we and Penwest filed a lawsuit against Actavis in the U.S. District Court for the District of New Jersey in connection with Actaviss ANDA. The lawsuit alleges
infringement of an Orange Book-listed U.S. patent that covers the Opana® ER formulation. On May 5, 2008,
Actavis filed an answer and counterclaims, asserting claims for declaratory judgment that the patents listed in the Orange Book are invalid, not infringed and/or unenforceable, as well as a claim of unfair competition against Endo and Penwest.

On or around June 2, 2008, the Company received a notice from Actavis that it had filed an amendment to its ANDA
containing Paragraph IV certifications for the 7.5 mg and 15 mg dosage strengths of oxymorphone hydrochloride extended release tablets. On or around July 2, 2008, the Company received a notice from Actavis that it had filed an amendment to its
ANDA containing Paragraph IV certifications for the 30 mg dosage strength. Both notices cover Penwests U.S. Patent Nos. 5,128,143, 7,276,250, 5,958,456 and 5,662,933. On July 11, 2008, the Company and Penwest, filed suit against Actavis
in the United States District Court for the District of New



F-63



---

##### Table of Contents

Jersey. The lawsuit alleges infringement of an Orange Book-listed U.S. patent that covers the Opana® ER formulation. On August 14, 2008, Actavis filed an answer and counterclaims, asserting claims for declaratory judgment that the patents listed in the Orange
Book are invalid, not infringed and/or unenforceable, as well as a claim of unfair competition against Endo and Penwest.

On February 20, 2009, Endo and Penwest settled all of the Actavis litigation. Both sides dismissed their respective claims and counterclaim with prejudice. Under the terms of the settlement, Actavis
agreed not to challenge the validity or enforceability of Penwests patents relating to Opana® ER. Endo and
Penwest agreed to grant Actavis a license permitting the production and sale of generic Opana® ER 7.5 and 15 mg
tablets by the earlier of July 15, 2011, the last day Actavis would forfeit its 180-day exclusivity, and the date on which any third party commences commercial sales of a generic oxymorphone hydrochloride extended-release tablets, but not
before November 28, 2010. Endo and Penwest also granted Actavis a license to produce and market other strengths of Opana® ER generic on the earlier of July 15, 2011 and the date on which any third party commences commercial sales of a generic form of the drug.

On July 14, 2008, the Company received a notice from Sandoz, Inc. (Sandoz), advising of the filing by Sandoz of an
ANDA containing a Paragraph IV certification under 21 U.S.C. Section 355(j) with respect to oxymorphone hydrochloride extended-release oral tablets in 5 mg, 10 mg, 20 mg and 40 mg dosage strengths. The Sandoz Paragraph IV certification notice
refers to Penwests U.S. Patent Nos. 5,662,933, 5,958,456 and 7,276,250, which cover the formulation of Opana® ER. These patents are listed in the FDAs Orange Book and expire in 2013, 2013 and 2023, respectively. In addition to these patents, Opana® ER has a new dosage form (NDA) exclusivity that prevents final approval of any ANDA by the FDA until the exclusivity expires on June 22, 2009. Subsequently, on
August 22, 2008, the Company and Penwest filed a lawsuit against Sandoz in the United States District Court for the District of Delaware in connection with Sandozs ANDA. The lawsuit alleges infringement of an Orange Book-listed U.S.
patent that covers the Opana® ER formulation. In response, Sandoz filed an answer and counterclaims,
asserting claims for declaratory judgment that the patents listed in the Orange Book are invalid, not infringed and/or unenforceable.

On November 20, 2008, the Company received a notice from Sandoz that it had filed an amendment to its ANDA containing Paragraph IV certifications for the 7.5 mg, 15 mg and 30 mg dosage strengths of
oxymorphone hydrochloride extended release tablets. The notice covers Penwests U.S. Patent Nos. 5,128,143, 7,276,250, 5,958,456 and 5,662,933. On December 30, 2008, the Company and Penwest, filed suit against Sandoz in the United States
District Court for the District of New Jersey. The lawsuit alleges infringement of an Orange Book-listed U.S. patent that covers the Opana® ER formulation. In response, Sandoz filed an answer and counterclaims, asserting claims for declaratory judgment that the patents listed in the Orange Book are
invalid, not infringed and/or unenforceable. Both of these pending suits against Sandoz were transferred to the United States District Court for the District of New Jersey.

On September 12, 2008, the Company received a notice from Barr Laboratories, Inc. (referred to as Barr), advising
of the filing by Barr of an ANDA containing a Paragraph IV certification under 21 U.S.C. Section 355(j) with respect to oxymorphone hydrochloride extended-release oral tablets in a 40 mg dosage strength. On September 15, 2008, the Company
received a notice from Barr that it had filed an ANDA containing a Paragraph IV certification under 21 U.S.C. Section 355(j) with respect to oxymorphone hydrochloride extended-release oral tablets in 5 mg, 10 mg, and 20 mg dosage strengths.
Both notices refer to Penwests U.S. Patent Nos. 5,662,933, 5,958,456 and 7,276,250, which cover the formulation of Opana® ER. These patents are listed in the FDAs Orange Book and expire in 2013, 2013 and 2023, respectively. In addition to these patents, Opana® ER had a new dosage form exclusivity that prevented final approval of any ANDA by the FDA until the exclusivity
expired on June 22, 2009. Subsequently, on October 20, 2008, the Company and Penwest filed a lawsuit against Barr in the United States District Court for the District of Delaware in connection with Barrs ANDA. The lawsuit alleges
infringement of certain Orange Book-listed U.S. patents that cover the Opana® ER formulation. In response,
Barr filed an answer and counterclaims, asserting claims for declaratory judgment that the patents listed in the Orange Book are invalid, not infringed and/or unenforceable. This suit was transferred to the United States District Court for the
District of New Jersey. On June 2, 2009, the Company received a notice



F-64



---

##### Table of Contents

from Barr that it had filed an ANDA containing a Paragraph IV certification under 21 U.S.C. Section 355(j) with respect to oxymorphone hydrochloride extended-release oral tablets in 7.5 mg,
15 mg, and 30 mg dosage strengths. This notice also refers to Penwests U.S. Patent Nos. 5,662,933, 5,958,456 and 7,276,250, which cover the formulation of Opana® ER. On July 2, 2009, the Company and Penwest filed a lawsuit against Barr in the United States District Court for the District of New Jersey in connection with
Barrs ANDA.

On December 29, 2009, the Company received a notice from Roxane Laboratories, Inc.
(Roxane) advising of the filing by Roxane of an ANDA containing a Paragraph IV certification under 21 U.S.C. section 355(j) with respect to oxymorphone hydrochloride extended-release oral tablets in a 40 mg dosage strength. The notice
refers to Penwests U.S. Patent Nos. 5,662,933, 5,958,456 and 7,276,250, which cover the formulation of Opana® ER. These patents are listed in the FDAs Orange Book and expire in 2013, 2013, and 2023, respectively. Subsequently, on January 29, 2010, the Company and Penwest filed a lawsuit against Roxane in the U.S. District Court for the
District of New Jersey in connection with Roxanes ANDA. The lawsuit alleges infringement of an Orange Book-listed U.S. patent that covers the Opana® ER formulation.

On
January 20, 2010, the Company received a notice from Watson Laboratories, Inc. (Watson) advising of the filing by Watson of an ANDA containing a Paragraph IV certification under 21 U.S.C. section 355(j) with respect to oxymorphone
hydrochloride extended-release oral tablets in a 40 mg dosage strength. The notice refers to Penwests U.S. Patent Nos. 5,662,933, 5,958,456 and 7,276,250, which cover the formulation of Opana® ER. These patents are listed in the FDAs Orange Book and expire in 2013, 2013, and 2023, respectively.

We intend, and we have been advised by Penwest that they too intend, to pursue all available legal and regulatory
avenues in defense of Opana® ER, including enforcement of our intellectual property rights and approved
labeling. We cannot, however, predict or determine the timing or outcome of any of these litigations but will explore all options as appropriate in the best interests of the Company.

Paragraph IV Certifications on Sanctura XR®

On June 2,
2009, the Companys subsidiary, Endo Pharmaceuticals Solutions, Inc. (referred to as Endo Solutions), received a notice from Watson Laboratories, Inc. (referred to as Watson) advising that Watson had filed a certification with the FDA under 21
C.F.R. § 314.95(c)(1) in conjunction with ANDA 91-289 for approval to commercially manufacture and sell generic versions of Sanctura XR® trospium chloride extended release capsules. The Paragraph IV letter alleged that U.S. Patent No. 7,410,978, listed in the Orange Book for Sanctura XR is
invalid, unenforceable, and/or will not be infringed by the commercial manufacture, use, or sale of Watsons generic product. This patent expires February 1, 2025 and is owned by Supernus Pharmaceuticals, Inc. and licensed to Endo
Solutions. The Sanctura XR® product has new dosage form exclusivity that prevents final approval of any
ANDA by the FDA until the exclusivity expires on August 3, 2010.

In response to Watsons notice letter, on
July 13, 2009, Supernus Pharmaceuticals, Inc., Endo Solutions and Allergan filed a lawsuit against Watson in the United States District Court for the District of Delaware alleging infringement of U.S. Patent No. 7,410,978 by Watsons
ANDA 91-289. Because the suit was filed within the 45-day period under the FDC Act for filing a patent infringement action, we believe that it triggered an automatic 30-month stay of approval under the Act. We intend, and have been advised by
Supernus and Allergan that they too intend, to contest this case vigorously. We cannot, however, predict or determine the timing or outcome of this litigation but will explore all options as appropriate in the best interests of the Company.

LecTec Corporation v Chattem, Inc., et al.

On July 25, 2008, the LecTec Corporation filed a complaint in the United States District Court for the Eastern
District of Texas against the Companys subsidiary, Endo Pharmaceuticals Inc. (referred to as EPI) and several other pharmaceutical companies alleging that each of the defendants sells products that infringe one or more claims of patents owned
by LecTec. The Companys product Lidoderm® is identified in the complaint. The



F-65



---

##### Table of Contents

complaint alleges that Lidoderm® infringes U.S. Patents
5,536,263 and 5,741,510. On September 30, 2008, the Company filed an answer denying infringement and alleging that the patents are invalid. On February 10, 2009, the plaintiff filed a motion for preliminary injunction against EPI.

On November 11, 2009, we reached a settlement with LecTec Corporation pursuant to which EPI agreed to make a one-time,
$23 million payment for the exclusive license to these two patents for use in the field of prescription pain medicines and treatment and LecTec agreed to dismiss this suit against EPI with prejudice. Pursuant to the Companys license and
manufacturing agreements with Hind Healthcare Inc. and Teikoku Seiyaku Co., Ltd., Hind and Teikoku were each contractually obligated to and did fund their share of the settlement.

Other Legal Proceedings

In addition to the above proceedings, we are involved in, or have been involved in, arbitrations or various other legal proceedings that arise from the normal course of our business. We cannot predict the
timing or outcome of these claims and other proceedings. Currently, we are not involved in any arbitration and/or other legal proceeding that we expect to have a material effect on our business, financial condition, results of operations and cash
flows.

Leases

We lease automobiles and office and laboratory facilities under certain noncancelable operating leases that expire through 2018. These leases are renewable at our option. A summary of minimum future
rental payments required under operating leases as of December 31, 2009 are as follows (in thousands):



|                             |  |                 |       
|---------------------------- |  | --------------- | ------
|                             |  | OperatingLeases
|2010                         |  | $               | 9,725 
|2011                         |  |                 | 6,245 
|2012                         |  |                 | 4,584 
|2013                         |  |                 | 4,700 
|2014                         |  |                 | 4,635 
|Thereafter                   |  |                 | 4,608 
|                             |  |                 |       
|Total minimum lease payments |  | $               | 34,497
|                             |  |                 |       

Expense incurred under operating leases was $12.2
million, $8.7 million and $6.1 million for the years ended December 31, 2009, 2008 and 2007, respectively.

NOTE 15. Savings and
Investment Plan and Deferred Compensation Plans

On September 1, 1997, we established a defined contribution Savings
and Investment Plan covering all employees. Employee contributions are made on a pre-tax basis under section 401(k) of the Internal Revenue Code (referred to as the Code). We match up to six percent of the participants contributions subject to
limitations under section 401(k) of the Code. Participants are fully vested with respect to their own contributions. Participants are fully vested with respect to our contributions after one year of continuous service. Contributions by us amounted
to $8.3 million, $7.2 million and $5.6 million for the years ended December 31, 2009, 2008 and 2007, respectively.

In
December 2007, the Board of Directors (referred to as the Board) of Endo Pharmaceuticals Holdings Inc. adopted the Endo Pharmaceuticals Holdings Inc. Executive Deferred Compensation Plan (referred to as the Deferred Compensation Plan) and the Endo
Pharmaceuticals Holdings Inc. 401(k) Restoration Plan (referred to as the 401(k) Restoration Plan) both effective as of January 1, 2008. Both plans cover employees earning over



F-66



---

##### Table of Contents

the Internal Revenue Code plan compensation limit, which would include the chief executive officer, chief financial officer and other named executive officers. The Deferred Compensation Plan
allows for deferral of up to 50% of the bonus and up to 100% of restricted stock units granted, with payout to occur as elected either in lump sum or installments. Under the 401(k) Restoration Plan the participant may defer the amount of base salary
and bonus that would have been deferrable under the Companys Savings and Investment Plan (up to 50% of salary and bonus) if not for the qualified plan statutory limits on deferrals and contributions, and also provides for a company match on
the first six percent of deferrals to the extent not provided for under the Savings and Investment Plan. Payment occurs after separation from service either in lump sum or installments as elected by the participant.

Also in December 2007, the Board adopted the Endo Pharmaceuticals Holdings Inc. Directors Deferred Compensation Plan, effective
January 1, 2008. The purpose of the Plan is to promote the interests of the Company and the stockholders of the Company by providing non-employee Directors the opportunity to defer up to 100% of meeting fees, retainer fees, and restricted stock
units, with payout to occur as elected either in lump sum or installments. Payment occurs after separation from service either in lump sum or installments as elected by the participant.

NOTE 16. Net Income Per Share

The following is a reconciliation of the
numerator and denominator of basic and diluted net income per share for the years ended December 31 (in thousands, except per share data):



|                                                   |  |      |         |      |   |         |  |   |        
|-------------------------------------------------- |  | ---- | ------- | ---- | - | ------- |  | - | -------
|                                                   |  | 2009 |         | 2008 |   | 2007   
|Numerator:                                         |  |      |         |      |   |         |  |   |        
|Net income available to common stockholders        |  | $    | 266,336 |      | $ | 255,336 |  | $ | 227,440
|                                                   |  |      |         |      |   |         |  |   |        
|Denominator:                                       |  |      |         |      |   |         |  |   |        
|For basic per share dataweighted average shares   |  |      | 117,112 |      |   | 123,248 |  |   | 133,903
|Effect of dilutive securities                      |  |      | 403     |      |   | 472     |  |   | 622    
|                                                   |  |      |         |      |   |         |  |   |        
|For diluted per share dataweighted average shares |  |      | 117,515 |      |   | 123,720 |  |   | 134,525
|Basic net income per share                         |  | $    | 2.27    |      | $ | 2.07    |  | $ | 1.70   
|                                                   |  |      |         |      |   |         |  |   |        
|Diluted net income per share                       |  | $    | 2.27    |      | $ | 2.06    |  | $ | 1.69   
|                                                   |  |      |         |      |   |         |  |   |        

Basic net income per share is computed based on the
weighted average number of common shares outstanding during the period. Diluted income per common share is computed based on the weighted average number of common shares outstanding and, if there is net income during the period, the dilutive impact
of common stock equivalents outstanding during the period. Common stock equivalents are measured under the treasury stock method.

The Convertible Notes are considered to be Instrument X securities as defined by ASC topic 815; therefore, these notes would only be included in the dilutive earnings per share calculation using the treasury stock method when the
average market price of our common stock is above the applicable conversion price of the Convertible Notes, or $29.20 per share. Under the treasury stock method, we would calculate the number of shares issuable under the terms of these notes based
on the average market price of the stock during the period, and include that number in the total diluted shares figure for the period.

We have entered into convertible note hedge and warrant agreements that, in combination, have the economic effect of reducing the dilutive impact of the Convertible Notes. However, we separately analyze the impact of the convertible note
hedge and warrant agreements on diluted weighted average shares. As a result, the purchases of the convertible note hedge and warrant agreement are excluded because their impact would be anti-dilutive. The treasury stock method will be applied when
the warrant is in-the-money with the proceeds from the



F-67



---

##### Table of Contents

exercise of the warrant used to repurchase shares based on the average stock price in the calculation of diluted weighted average shares. Until the warrants are in-the-money, they have no impact
to the diluted weighted average share calculation. The total number of shares that could potentially be included under the warrants is 1.3 million.

The following reconciliation shows the shares excluded from the calculation of diluted net income per share as the inclusion of such shares would be anti-dilutive for the years ended December 31 (in
thousands):



|                                                                     |  |        |  |        |  |      
|-------------------------------------------------------------------- |  | ------ |  | ------ |  | -----
|                                                                     |  | 2009   |  | 2008   |  | 2007 
|Weighted average shares excluded:                                    |  |        |  |        |  |      
|1.75% Convertible senior subordinated notes due 2015 and warrants(1) |  | 14,294 |  | 14,294 |  |     
|Employee stock-based awards                                          |  | 4,681  |  | 3,596  |  | 2,423
|                                                                     |  |        |  |        |  |      
|                                                                     |  | 18,975 |  | 17,890 |  | 2,423
|                                                                     |  |        |  |        |  |      



|(1) | Amount represents the potential total dilution that could occur if our Convertible Notes and warrants were converted to shares of our common stock.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------

NOTE 17. DEBT

Convertible Senior Subordinated Notes Due 2015

In April 2008, we
issued $379.5 million in aggregate principal amount of 1.75% Convertible Senior Subordinated Notes due April 15, 2015 (referred to as the Convertible Notes) in a private offering for resale to qualified institutional buyers.

We received proceeds of approximately $370.7 million from the issuance, net of the initial purchasers discount and certain other costs
of the offering. Interest is payable semi-annually in arrears on each April 15 and October 15 with the first interest payment being made on October 15, 2008. The Convertible Notes will mature on April 15, 2015, unless earlier
converted or repurchased by us.

Holders of the Convertible Notes may convert their notes based on a conversion rate of
34.2466 shares of our common stock per $1,000 principal amount of notes (the equivalent of $29.20 per share), subject to adjustment upon certain events, only under the following circumstances as described in the Indenture for the Convertible Notes
(referred to as the Indenture): (1) during specified periods, if the price of our common stock reaches specified thresholds; (2) if the trading price of the Convertible Notes is below a specified threshold; (3) at any time after
October 15, 2014; or (4) upon the occurrence of certain corporate transactions. We will be permitted to deliver cash, shares of Endo common stock or a combination of cash and shares, at our election, to satisfy any future conversions of
the Convertible Notes. It is our current intention to settle the principal amount of any conversion consideration in cash.

Concurrently with the issuance of the Convertible Notes, we entered into a privately-negotiated convertible note hedge transaction with affiliates of the initial purchasers. Pursuant to the hedge transaction we purchased common stock call
options intended to reduce the potential dilution to our common stock upon conversion of the Convertible Notes by effectively increasing the initial conversion price of the Notes to $40.00 per share, representing a 61.1% conversion premium over the
closing price of our common stock on April 9, 2008 of $24.85 per share. The call options allow us to purchase up to approximately 13.0 million shares of our common stock at an initial strike price of $29.20 per share. The call options
expire on April 15, 2015 and must be net-share settled. The cost of the call option was approximately $107.6 million. In addition, we sold warrants to affiliates of certain of the initial purchasers whereby they have the option to purchase
up to approximately 13.0 million shares of our common stock at an initial strike price of $40.00 per share. The warrants expire on various dates from July 14, 2015 through October 6, 2015 and must be net-share settled. We
received approximately $50.4 million in cash proceeds from the sale of these warrants.



F-68



---

##### Table of Contents

As part of our broader share repurchase program described in Note 12, we also entered into a
privately-negotiated accelerated share repurchase agreement with the same counterparty. We used approximately $314 million of the net proceeds from the Convertible Notes, together with approximately $11 million of cash on hand, to repurchase a
variable number of shares of our common stock pursuant to the accelerated share repurchase agreement entered into as part of our broader share repurchase program. Pursuant to the accelerated share repurchase agreement, the counterparty delivered
11.9 million shares of our common stock to the Company on the day that the Convertible Note offering closed, April 15, 2008. On August 14, 2008, Endo received approximately 1.4 million additional shares of our common stock based
on the volume-weighted average price of our common stock during a specified averaging period set forth by the accelerated share repurchase agreement.

The Company has reserved previously authorized shares of common stock for issuance pursuant to the aforementioned Convertible Notes transaction, the convertible note hedge transaction, and the warrant.

We accounted for the call options, warrants, and accelerated share repurchase agreement in accordance with the guidance
regarding the accounting for convertible debt instruments that may be settled in cash upon conversion. The call options, warrants, and accelerated share repurchase agreement meet the requirements to be accounted for as equity instruments. The cost
of the call options and the proceeds related to the sale of the warrants are included in additional paid-in capital in our consolidated balance sheet as of December 31, 2008 and 2009. The common stock acquired through the accelerated share
repurchase agreement has been included in treasury stock in our Consolidated Balance Sheets as of December 31, 2008 and 2009.

As discussed in Note 2, on January 1, 2009 the Company retrospectively adopted the provisions of the authoritative guidance regarding the accounting for convertible debt instruments. The guidance requires that issuers of convertible
debt instruments that may be settled in cash or other assets on conversion to separately account for the liability and equity components of the instrument in a manner that will reflect the entitys nonconvertible debt borrowing rate on the
instruments issuance date when interest cost is recognized in subsequent periods.

As a result of our adoption, we
separated the debt portion of our Convertible Notes from the equity portion at their fair value retrospective to the date of issuance and we are amortizing the resulting discount into interest expense over the life of the Convertible Notes.

In order to determine the fair value of the debt portion and equity portion of our Convertible Notes, we first attempted to
use a market approach by identifying prices and other relevant information generated by market transactions at or near the issuance date of our Convertible Notes, that involved comparable companies issuing nonconvertible debt with similar embedded
features (other than the conversion feature). We were unable to identify any such transactions. As a result, the Company determined that an expected present value technique, or income approach that maximizes the use of observable market inputs is
the preferred approach to measure the fair value of the debt and equity components of our Convertible Notes. Specifically, the Company used an income approach known as the binomial lattice model.

To calculate the fair value of the debt and equity components of our Convertible Notes, the Company constructed a binomial lattice to model
future changes in the equity value of the Company, and a convertible bond lattice for the Convertible Notes, which incorporated certain inputs and assumptions, including scheduled coupon and principal payments, the conversion feature inherent in the
Convertible Notes, the put feature inherent in the Convertible Notes, and a stock price volatility of 36% that was based on historic volatility of the Companys common stock and other factors.

An implied credit spread of 6.12% was calculated based on the results of the convertible bond lattice described above. The fair value of the
debt component was then calculated by discounting the coupon and principal payments of the Convertible Notes with a risk free interest rate of 2.97% and the implied credit spread of 6.12%, which collectively represent the Companys estimated
nonconvertible debt borrowing rate of 9.09%. As a result of this analysis, the fair value of the debt component of our Convertible Notes was determined to be $237.3 million on the date of issuance.



F-69



---

##### Table of Contents

As a result of the retrospective adoption, we recorded an adjustment to our Consolidated
Balance Sheet as of April 15, 2008 to separate the debt and equity components of our Convertible Notes. This adjustment resulted in a reclassification out of Convertible Senior Subordinated Notes Due 2015 into Additional Paid-In Capital of
$142.2 million, which represents the fair value of the equity component of our Convertible Notes on the date of issuance.

In
addition, we were required to reclassify the portion of the initial purchasers discount and certain other costs of the offering that were attributable to the equity component of our Convertible Notes. The initial purchasers discount and
certain other costs of the offering were originally recorded as a contra-liability account applied to the face amount of the Convertible Notes and were being amortized to interest expense utilizing the effective interest method. Upon adoption, we
recorded an adjustment out of the contra-liability account and into Additional Paid-In Capital of $3.3 million, which represents the portion of the original purchasers discount and certain other costs of the offering that are relate to the
equity component of our Convertible Notes.

The adoption resulted in the recognition of an additional $10.4 million of
interest expense and a reduction to our income tax expense of $4.0 million for the year ended December 31, 2008. Accordingly, we recorded a $6.4 million adjustment to beginning retained earnings in our December 31, 2009 Consolidated
Balance Sheet.

The carrying values of the debt and equity components of our Convertible Notes at December 31, 2009 are
as follows (in thousands):



|                                                      |  |                  |          |  
|----------------------------------------------------- |  | ---------------- | -------- | -
|                                                      |  | December 31,2009 |         
|Principal amount of Convertible Notes                 |  | $                | 379,500  |  
|Unamortized discount related to the debt component(1) |  |                  | (119,221 | )
|                                                      |  |                  |          |  
|Net carrying amount of the debt component             |  | $                | 260,279  |  
|                                                      |  |                  |          |  
|Carrying amount of the equity component               |  | $                | 142,199  |  
|                                                      |  |                  |          |  



|(1) | Represents the unamortized portion of the original purchasers discount and certain other costs of the offering as well as the unamortized portion of the discount
created from the separation of the debt portion of our Convertible Notes from the equity portion. This discount will be amortized to interest expense over the term of the Convertible Notes.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

We recognized $23.8 million of interest expense related to our Convertible Notes for the year ended December 31, 2009, $6.6 million of
which related to the contractual interest payments and $17.2 million of which related to the amortization of the debt discount and certain other costs of the offering. During the year ended December 31, 2008, we recognized $16.0 million of
interest expense related to our Convertible Notes, $4.7 million of which related to the contractual interest payments and $11.3 million of which related to the amortization of the debt discount and certain other costs of the offering.

As a result of applying the guidance retrospectively to all periods presented, we recognized the following incremental effects on individual
line items on the Consolidated Balance Sheet (in thousands):



|                                                      |  |                              |         |                              |   |          |             |  |   |         |  
|----------------------------------------------------- |  | ---------------------------- | ------- | ---------------------------- | - | -------- | ----------- |  | - | ------- | -
|                                                      |  | December 31, 2008            |        
|                                                      |  | Before the Impactof Adoption |         | IncrementalImpact ofAdoption |   |          | As Adjusted | 
|Deferred income taxes asset/(liability) (non-current) |  | $                            | 47,898  |                              | $ | (49,168  | )           |  | $ | (1,270  | )
|Convertible senior subordinated notes due 2015        |  |                              | 371,695 |                              |   | (128,545 | )           |  |   | 243,150 |  
|Additional paid-in capital                            |  |                              | 707,503 |                              |   | 85,782   |             |  |   | 793,285 |  
|Retained earnings                                     |  | $                            | 845,360 |                              | $ | (6,405   | )           |  | $ | 838,955 |  



F-70



---

##### Table of Contents

Convertible Notes Due July 2009

As a result of our acquisition of Indevus, the Company assumed Indevuss 6.25% Convertible Senior Notes due July 2009 (the Notes).
Pursuant to the Indenture governing the Notes, within 30 days of the effective date of the Merger, holders of the Notes had the right to tender their Notes for the principal amount of the Notes plus any accrued and unpaid interest. During this
30-day period, approximately $3.6 million in aggregate principal amount of Notes were tendered and the Company paid this amount in April 2009.

The Notes matured on July 15, 2009. Accordingly, the Company paid the remaining $68.3 million in outstanding principal to satisfy the Notes in their entirety.

Non-recourse Notes

On August 26, 2008, Indevus closed a private placement to institutional investors of $105.0 million in aggregate principal amount of 16% non-convertible, non-recourse, secured promissory notes due
2024 (referred to as Non-recourse Notes). The Non-recourse Notes were issued by Ledgemont Royalty Sub LLC (referred to as Royalty Sub), which was a wholly-owned subsidiary of Indevus at the time of the Non-recourse Note issuance and subsequently
became a wholly-owned subsidiary of the Company upon our acquisition of Indevus. As of the Acquisition Date, the Company recorded these notes at their fair value of approximately $115.2 million and began amortizing these notes to their face value of
$105.0 million at maturity in 2024.

In connection with the issuance of the Non-recourse Notes, Indevus
and Royalty Sub entered into a Purchase and Sale Agreement pursuant to which Indevus sold to Royalty Sub its rights to receive royalty payments from Allergan arising under the Allergan Agreement (as described in Note 6) for sales in the U.S. of
Sanctura® and Sanctura XR® . To secure repayment of the Non-recourse Notes, Royalty Sub granted a continuing security interest to the trustee for the benefit of the noteholders in, among other
things, the royalty payments made by Allergan under the Allergan Agreement discussed above, all of its rights under the Purchase and Sale Agreement and any accounts established in accordance with the Indenture (and all amounts from time to time
credited to such accounts). The Non-recourse Notes have not been guaranteed by Indevus or the Company. Principal on the Non-recourse Notes is required to be paid in full by the final legal maturity date of November 5, 2024, unless repaid or
redeemed earlier. In the event the Non-recourse Notes are repaid or redeemed prior to November 5, 2024, the noteholders will be entitled to a redemption premium (as described below). The interest rate applicable to the Non-recourse Notes is
16% per year and is payable quarterly in arrears and commenced on November 5, 2008.

Principal and interest on the
Non-recourse Notes will be paid from the royalties from Allergan. Payments may also be made from the interest reserve account (described below) and certain other accounts established in accordance with the Indenture. In connection with the issuance
of the Non-recourse Notes, a $10 million interest reserve account was established to fund potential interest payment shortfalls. Approximately $2 million of the interest reserve account remains and is classified as restricted cash in the
Companys consolidated balance sheet as of December 31, 2009. Royalty Sub will receive directly all royalties payable to the Company until the Non-recourse Notes have been repaid in full.

In August 2009, the Company commenced a cash tender offer for any and all outstanding Non-recourse notes. The purpose of the tender offer
was to acquire any and all Notes to reduce our consolidated interest expense. The tender offer included an early tender deadline, whereby holders of the Non-recourse notes could early tender and receive the total early consideration of $1,000 per
$1,000 principal amount of the Non-recourse notes. Holders who tendered their Non-recourse notes after such time and at or prior to the expiration of the tender offer period were eligible to receive the tender offer consideration of $950 per $1,000
principal amount of Non-recourse notes, which was the total early consideration less the early tender payment. The tender offer expired on September 24, 2009, at 5:00 p.m., New York City time (referred to as the Expiration Time). As of the
Expiration Time, $48 million Non-recourse notes had been validly tendered and not withdrawn. The Company accepted for payment and purchased Non-recourse notes at a purchase price of $1,000 per $1,000 principal



F-71



---

##### Table of Contents

amount, for a total amount of approximately $48 million (excluding accrued and unpaid interest up to, but not including, the payment date for the Notes, fees and other expenses in connection with
the tender offer). The aggregate principal amount of Non-recourse notes purchased represents approximately 46% of the $105 million aggregate principal amount of Non-recourse notes that were outstanding prior to the Expiration Time. Accordingly, the
Company recorded a $4.0 million gain on the extinguishment of debt, net of transaction costs. The gain was calculated as the difference between the aggregate amount paid to purchase the Non-recourse notes and their carrying amount.

If the royalty payments from Allergan and amounts in the interest reserve account are insufficient to pay all of the interest and principal,
if any, due on a payment date, the shortfall will accrue interest at the interest rate applicable to the Non-recourse Notes (16%) compounded quarterly. If any interest payment shortfall is not paid in full by the succeeding payment date, an
Event of Default under the Indenture will occur, unless the Company contributes cash to a capital account of Royalty Sub in an amount sufficient to satisfy any such shortfall. Pursuant to the Indenture, the Company has the right, but not the
obligation, to contribute cash in an amount equal to the shortfall to the capital account for distribution by the trustee to the noteholders. The Company has the right to satisfy such an interest payment shortfall no more than six times over the
life of the Non-recourse Notes and no more than three consecutive times. In the event that the Company is no longer permitted to fund the capital account to satisfy an interest payment shortfall, and the Company does not redeem the Non-recourse
Notes (as described below), an Event of Default will occur and the noteholders may accelerate the obligations of Royalty Sub under the Non-recourse Notes and exercise their remedies thereunder, including assuming all rights to future royalty
payments from Allergan. Based on current expectations, it is reasonably possible that we may exceed the maximum number of times we can fund the capital account to satisfy an interest payment shortfall as early as November 2010.

The Non-recourse Notes will be subject to redemption at the option of Royalty Sub. If the applicable redemption of the Non-recourse Notes
occurs on or prior to August 5, 2010, the redemption price will be equal to the greater of (x) the outstanding principal balance of the Non-recourse Notes being redeemed or (y) the present value, discounted at the rate on U.S.
Treasury obligations with a comparable maturity to the remaining weighted average life of the Non-recourse Notes plus 1.00%, of the principal payment amounts and interest at the rate applicable to the Non-recourse Notes on the outstanding principal
balance of the Non-recourse Notes. If the applicable redemption of the Non-recourse Notes occurs after August 5, 2010, the redemption price will be equal to the percentage of the outstanding principal balance of the Non-recourse Notes being
redeemed specified below for the period in which the redemption occurs:



|                                                      |  |                      |  
|----------------------------------------------------- |  | -------------------- | -
|Payment Dates (between indicated dates)               |  | RedemptionPercentage |  
|From November 5, 2010 to and including August 5, 2011 |  | 108                  | %
|From November 5, 2011 to and including August 5, 2012 |  | 104                  | %
|From November 5, 2012 and thereafter                  |  | 100                  | %

Credit
Facility

In October 2009, we established a $300 million, three-year senior secured revolving credit facility (referred
to as the Credit Facility) with JP Morgan Chase Bank, Barclays Capital and certain other lenders. The Credit Facility will be available for letters of credit, working capital and general corporate purposes. The Credit Facility also
permits up to $100 million of additional revolving or term loan commitments from one or more of the existing lenders or other lenders.

The obligations of the Company under the Credit Facility are guaranteed by certain of the Companys domestic subsidiaries and are secured by substantially all of the assets of the Company. The Credit Facility contains certain usual and
customary covenants, including, but not limited to covenants to maintain a maximum leverage ratio and minimum interest coverage ratio as well as limitations on capital expenditures, asset sales, mergers and acquisitions, indebtedness, liens,
dividends, investments and transactions with the Companys



F-72



---

##### Table of Contents

affiliates. Borrowings under the Credit Facility will be pegged to either (1) the London Interbank Offered Rate (referred to as LIBOR) or (2) an alternate base rate, plus a specified
margin depending on the Companys leverage ratio from time to time. The alternate base rate is the greater of the prime rate, the federal funds rate plus 0.5%, or an adjusted LIBOR rate plus 1%. The Company will also pay a commitment fee of
between 62.5 to 100 basis points, depending on the Companys leverage ratio, payable quarterly, on the average daily unused amount of the Credit Facility. As of the date of this filing, the Company has not drawn any amounts under the Credit
Facility. Financing costs of $5.2 million paid to establish the credit facility have been deferred and are being amortized to interest expense over the life of the credit facility.

NOTE 18. Subsequent Events

Long-Term Incentive Compensation

In early 2010, long-term incentive compensation in the form of approximately 1.5 million stock options, 1.1 million
restricted stock units and 0.2 million performance shares were granted to employees. Stock options will generally vest over four years and expire ten years from the date of the grant. Restricted stock units will vest over four years and the
performance shares will vest at the end of the cumulative 3-year performance period. The exercise price of the options granted was equal to the closing price on the dates of grant. The grant date fair value of the stock options, restricted stock
units, and performance shares granted was approximately $36 million.

NOTE 19. Quarterly Financial Data (Unaudited)



|                                  |  |                                       |         |          |   |               |  |              |         |  |   |        
|--------------------------------- |  | ------------------------------------- | ------- | -------- | - | ------------- |  | ------------ | ------- |  | - | -------
|                                  |  | Quarter Ended                        
|                                  |  | March 31,                             |         | June 30, |   | September 30, |  | December 31,
|                                  |  | (in thousands, except per share data)
|2009(1)                           |  |                                       |         |          |   |               |  |              |         |  |   |        
|Total Revenues                    |  | $                                     | 335,300 |          | $ | 373,108       |  | $            | 361,027 |  | $ | 391,406
|Gross profit                      |  | $                                     | 252,291 |          | $ | 278,039       |  | $            | 263,720 |  | $ | 291,733
|Operating income                  |  | $                                     | 77,466  |          | $ | 64,916        |  | $            | 84,314  |  | $ | 163,328
|Net income                        |  | $                                     | 39,037  |          | $ | 30,029        |  | $            | 49,422  |  | $ | 147,848
|Net income per share (basic)      |  | $                                     | 0.33    |          | $ | 0.26          |  | $            | 0.42    |  | $ | 1.26   
|Net income per share (diluted)    |  | $                                     | 0.33    |          | $ | 0.26          |  | $            | 0.42    |  | $ | 1.25   
|Weighted average shares (basic)   |  |                                       | 116,822 |          |   | 117,158       |  |              | 117,207 |  |   | 117,261
|Weighted average shares (diluted) |  |                                       | 117,209 |          |   | 117,350       |  |              | 117,643 |  |   | 117,859
|                                  |  |                                       |         |         
|2008(2)                           |  |                                       |         |          |   |               |  |              |         |  |   |        
|Total Revenues                    |  | $                                     | 290,271 |          | $ | 306,161       |  | $            | 316,768 |  | $ | 347,336
|Gross profit                      |  | $                                     | 233,737 |          | $ | 243,168       |  | $            | 245,741 |  | $ | 270,655
|Operating income                  |  | $                                     | 85,153  |          | $ | 82,064        |  | $            | 107,327 |  | $ | 112,930
|Net income                        |  | $                                     | 59,528  |          | $ | 57,128        |  | $            | 65,994  |  | $ | 72,686 
|Net income per share (basic)      |  | $                                     | 0.44    |          | $ | 0.46          |  | $            | 0.55    |  | $ | 0.62   
|Net income per share (diluted)    |  | $                                     | 0.44    |          | $ | 0.46          |  | $            | 0.55    |  | $ | 0.62   
|Weighted average shares (basic)   |  |                                       | 134,141 |          |   | 122,985       |  |              | 119,439 |  |   | 116,544
|Weighted average shares (diluted) |  |                                       | 134,652 |          |   | 123,531       |  |              | 119,954 |  |   | 116,894



Quarterly and year to date computations of per share amounts are made independently; therefore, the sum of the per share amounts for the quarters may not
equal the per share amounts for the year.



|(1) | Operating income for the year ended December 31, 2009 was impacted by milestone payments to collaborative partners of $9.4 million, $21.0 million,
$30.7 million and $16.0 million in the first, second, third and fourth quarters, respectively. Operating income for the year ended December 31, 2009 was also impacted by (1) the Indevus acquisition-related costs (income) of $26.4 million,
$35.0 million, ($20.2) million and ($134.3) million during the first, second, third and fourth quarters, respectively (2) impairment
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



F-73



---

##### Table of Contents

| | charges of $69.0 million relating to Pro2000 and Aveed during the fourth quarter (3) inventory step-up of $1.6 million, $3.6 million, $5.9 million and $0.2 million during the first, second,
third and fourth quarters, respectively (4) amortization expense relating to developed technology assets of $11.4 million, $15.6 million, $16.7 million and $19.2 million during the first, second, third and fourth quarters, respectively and
(5) interest expense relating to our 1.75% Convertible Notes of $3.8 million, $3.2 million, $3.7 million, and $4.0 million during the first, second, third and fourth quarters, respectively.
| | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Operating income for the year ended December 31, 2008 was impacted by milestone payments to collaborative partners of $6.5 million in the first quarter, milestone
reversals of $4.5 million in the second quarter and $6.9 million in the fourth quarter. Operating income for the year ended December 31, 2008 was also impacted by (1) the impairment of long-lived assets of $11.2 million in the second
quarter and $1.5 million in the third quarter; (2) separation benefits of $3.3 million in the first quarter, $6.4 million in the second quarter, and $1.6 million in the third quarter; (3) contract termination costs of $5.1 million in the
third quarter and (4) changes in the fair value of financial instruments recorded as a net charge to earnings of $3.3 million in the fourth quarter
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



F-74



---

##### Table of Contents

Exhibit Index



|            |  |                                                                                                                                                                                                                                                                                                                                                                                                                                  
|----------- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit No. |  | Title                                                                                                                                                                                                                                                                                                                                                                                                                            
|3.1         |  | Amended and Restated Certificate of Incorporation of Endo Pharmaceuticals Holdings Inc. (Endo) (incorporated herein by reference to Exhibit 10.32 of the Form 10-Q for
the Quarter ended June 30, 2008 filed with the Commission on August 1, 2008)                                                                                                                                                                            
|            | 
|3.2         |  | Amended and Restated By-laws of Endo                                                                                                                                                                                                                                                                                                                                                                                             
|            | 
|4.1         |  | Amended and Restated Executive Stockholders Agreement, dated as of July 7, 2003, by and among Endo, Endo Pharma LLC (Endo LLC), Kelso Investment Associates V, L.P.
(KIA V), Kelso Equity Partners V, L.P. (KEP V) and the Management Stockholders (as defined therein) (incorporated herein by reference to Exhibit 4.1 of the Form 10-Q for the Quarter ended June 30, 2003 filed with the
Commission on August 14, 2003)
|            | 
|4.1.2       |  | Amendment to Amended and Restated Executive Stockholders Agreement, dated as of June 28, 2004, by and among Endo, Endo LLC, KIA V, KEP V and the Management Stockholders (as
defined therein) (incorporated herein by reference to Exhibit 4.1 of the Form 10-Q for the Quarter ended September 30, 2004 filed with the Commission on November 5, 2004) the Commission on July 1, 2003)                                          
|            | 
|4.1.3       |  | Amendment 2 to the Amended and Restated Stockholders Agreement, dated September 20, 2005, by and among the Company, Endo LLC, Kelso and certain Amending Stockholders (as
defined therein) (incorporated herein by reference to Exhibit 4.1.3 of the Current Report on Form 8-K filed with the Commission on September 22, 2005)                                                                                                 
|            | 
|4.2         |  | Amended and Restated Employee Stockholders Agreement, dated as of June 5, 2003, by and among Endo, Endo LLC, KIA V, KEP V and the Employee Stockholders (as defined therein)
(incorporated herein by reference to Exhibit 10.2 of Amendment No. 2 to the Form S-3 Registration Statement (Registration No. 333-105338) filed with the Commission on July 1, 2003)                                                                
|            | 
|4.2.2       |  | Amendment to Amended and Restated Employee Stockholders Agreement, dated as of June 28, 2004, by and among Endo, Endo LLC, KIA V, KEP V and the Management Stockholders (as
defined therein) (incorporated herein by reference to Exhibit 4.1 of the Form 10-Q for the Quarter ended September 30, 2004 filed with the Commission on November 5, 2004)                                                                           
|            | 
|4.2.3       |  | Amendment 2 to the Amended and Restated Employee Stockholders Agreement, dated September 20, 2005, by and among the Company, Endo LLC, Kelso and certain Amending Stockholders
(as defined therein) (incorporated herein by reference to Exhibit 4.2.3 of the Current Report on Form 8-K filed with the Commission on September 22, 2005)                                                                                        
|            | 
|4.3         |  | Employee Stockholders Consent and Release, effective September 20, 2005, by and among the Company, Endo LLC, Kelso and certain Employee Stockholders (as defined therein)
signatory thereto (incorporated herein by reference to Exhibit 4.3 of the Current Report on Form 8-K filed with the Commission on September 22, 2005)                                                                                                  
|            | 
|4.4         |  | Registration Rights Agreement, dated as of July 17, 2000, by and between Endo and Endo LLC (incorporated herein by reference to Exhibit 4.4 of the Form 10-Q for the Quarter
ended June 30, 2000 filed with the Commission on August 15, 2000)                                                                                                                                                                                   
|            | 
|4.5         |  | Amendment to Registration Rights Agreement, dated as of June 30, 2003, by and between Endo and Endo LLC (incorporated herein by reference to Exhibit 10.1 of Amendment No. 2 to
the Form S-3 Registration Statement (Registration No. 333-105338) filed with the Commission on July 1, 2003)                                                                                                                                     
|            | 
|4.8         |  | Indenture dated as of August 6, 2007 between Indevus and The Bank of New York Trust Company, N.A, as trustee (incorporated herein by reference to Exhibit 4.1 of the Indevus
Current Report on Form 8-K filed with the Commission on August 7, 2007)                                                                                                                                                                             



---

##### Table of Contents

|            |  |                                                                                                                                                                                                                                                                                                                           
|----------- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit No. |  | Title                                                                                                                                                                                                                                                                                                                     
|4.8.1       |  | Supplemental Indenture, dated as of March 23, 2009, by and between Indevus and The Bank of New York Mellon Trust Company, N.A. (formerly known as The Bank of New York Trust Company,
N.A.) (incorporated herein by reference to Exhibit 10.1 to the Indevus Current Report on Form 8-K, dated March 23, 2009)            
|            | 
|10.1        |  | Shelf Registration Agreement, dated September 21, 2005, by and between Endo, Endo LLC and certain Management Stockholders (as defined therein) (incorporated herein by reference
to Exhibit 10.1 of the Current Report on Form 8-K filed with the Commission on September 22, 2005)                                       
|            | 
|10.2        |  | Shelf Registration Agreement, dated April 30, 2004, between Endo and Endo Pharma LLC (incorporated herein by reference to Exhibit 10.2 of Amendment No. 1 to the Form S-3
Registration Statement (Registration No. 333-115032) filed with the Commission on June 10, 2004)                                                
|            | 
|10.3        |  | Amendment to Shelf Registration Agreement, dated June 10, 2004 between Endo and Endo LLC (incorporated herein by reference to Exhibit 10.3 of Amendment No. 1 to the Form S-3
Registration Statement (Registration No. 333-115032) filed with the Commission on June 10, 2004)                                            
|            | 
|10.4        |  | Agreement dated April 29, 2008 between Endo and D. E. Shaw Valence Portfolios, L.L.C. (on behalf of itself and its affiliates that are members of the 13D Group with respect to the
Endo common stock) (incorporated herein by reference to Exhibit 99.1 of the Current Report on Form 8-K/A dated May 1, 2008)           
|            | 
|10.5        |  | [Intentionally Omitted.]                                                                                                                                                                                                                                                                                                  
|            | 
|10.6        |  | Amended and Restated Tax Sharing Agreement, dated as of April 30, 2004 by and among Endo, Endo Inc. and Endo LLC (incorporated herein by reference to Exhibit 10.6 of the Form
10-Q for the Quarter ended March 31, 2004 filed with the Commission on May 10, 2004)                                                       
|            | 
|10.7        |  | Convertible Bond Hedge Transaction Confirmation entered into by and between Endo and Deutsche Bank AG, London Branch, dated April 9, 2008 (incorporated herein by reference to
Exhibit 10.7 of the Form 10-Q for the Quarter ended March 31, 2008 filed with the Commission on May 2, 2008)                               
|            | 
|10.8        |  | Issuer Warrant Transaction Confirmation entered into by and between Endo and Deutsche Bank AG, London Branch, dated April 9, 2008 (incorporated herein by reference to Exhibit 10.8
of the Form 10-Q for the Quarter ended March 31, 2008 filed with the Commission on May 2, 2008)                                       
|            | 
|10.9        |  | Issuer Share Repurchase Transaction Confirmation entered into by and between Endo and Deutsche Bank AG, London Branch, dated April 9, 2008 (incorporated herein by reference to
Exhibit 10.9 of the Form 10-Q for the Quarter ended March 31, 2008 filed with the Commission on May 2, 2008)                              
|            | 
|10.10       |  | Sole and Exclusive License Agreement, dated as of November 23, 1998, by and between Endo Pharmaceuticals Inc. (Endo Pharmaceuticals) and Hind HealthCare, Inc.
(incorporated herein by reference to Exhibit 10.10 of the Registration Statement filed with the Commission on June 9, 2000)                              
|            | 
|10.11       |  | Endo Pharmaceuticals Holdings Inc. Executive Deferred Compensation Plan (incorporated herein by reference to Exhibit 10.1 of the Current Report on Form 8-K dated December 19,
2007)                                                                                                                                      
|            | 
|10.12       |  | Endo Pharmaceuticals Holdings Inc. 401(k) Restoration Plan (incorporated herein by reference to Exhibit 10.2 of the Current Report on Form 8-K dated December 19,
2007)                                                                                                                                                   
|            | 
|10.13       |  | [Intentionally Omitted]                                                                                                                                                                                                                                                                                                   
|            | 
|10.14       |  | Supply and Manufacturing Agreement, dated as of November 23, 1998, by and between Endo Pharmaceuticals and Teikoku Seiyaku Co., Ltd (incorporated herein by reference to Exhibit
10.14 of the Registration Statement filed with the Commission on June 9, 2000)                                                           
|            | 
|10.14.1     |  | First Amendment, dated April 24, 2007, to the Supply and Manufacturing Agreement, dated as of November 23, 1998, by and between Endo Pharmaceuticals and Teikoku Seiyaku Co., Ltd. /
Teikoku Pharma USA, Inc. (incorporated herein by reference to Exhibit 10.14.1 of the Current Report on Form 8-K dated April 30, 2007)



---

##### Table of Contents

|            |  |                                                                                                                                                                                                                                                                                                                                                                              
|----------- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit No. |  | Title                                                                                                                                                                                                                                                                                                                                                                        
|10.14.2*    |  | Second Amendment, effective December 16, 2009, to the Supply and Manufacturing Agreement, dated as of November 23, 1998 and as amended as of April 24, 2007, by and between Endo
Pharmaceuticals Inc. and Teikoku Seiyaku Co., Ltd. / Teikoku Pharma USA, Inc. (incorporated herein by reference to Exhibit 10.14.2 of the Current Report on Form 8-K dated January 11, 2010)
|            | 
|10.15       |  | Supply Agreement, dated as of July 1, 1998, by and between Endo Pharmaceuticals and Mallinckrodt Inc. (Mallinckrodt) (incorporated herein by reference to Exhibit
10.15 of the Registration Statement filed with the Commission on June 9, 2000)                                                                                                                           
|            | 
|10.16       |  | Supply Agreement for Bulk Narcotics Raw Materials, dated as of July 1, 1998, by and between Endo Pharmaceuticals and Mallinckrodt (incorporated herein by reference to Exhibit
10.16 of the Registration Statement filed with the Commission on June 9, 2000)                                                                                                                
|            | 
|10.16.1     |  | First Amendment, effective July 1, 2000, to the Supply Agreement for Bulk Narcotics Raw Materials, dated as of July 1, 1998, by and between Endo Pharmaceuticals and
Mallinckrodt (incorporated herein by reference to Exhibit 10.16.1 of the Current Report on Form 8-K dated April 14, 2006)                                                                               
|            | 
|10.16.2     |  | Second Amendment, dated April 10, 2006, to the Supply Agreement for Bulk Narcotics Raw Materials, dated as of July 1, 1998, by and between Endo Pharmaceuticals and
Mallinckrodt (incorporated herein by reference to Exhibit 10.16.2 of the Current Report on Form 8-K dated April 14, 2006)                                                                                
|            | 
|10.17       |  | [Intentionally Omitted.]                                                                                                                                                                                                                                                                                                                                                     
|            | 
|10.18       |  | Amended and Restated Strategic Alliance Agreement, dated as of April 2, 2002, by and between Endo Pharmaceuticals and Penwest Pharmaceuticals Co. (incorporated herein by
reference to Exhibit 10.18 of the Quarterly Report on Form 10-Q for the Quarter Ended March 31, 2002 filed with the Commission on May 14, 2002)                                                    
|            | 
|10.18.1     |  | Amendment, dated January 7, 2007, to the Amended and Restated Strategic Alliance Agreement, dated as of April 2, 2002, by and between Endo Pharmaceuticals and Penwest
Pharmaceuticals Co. (incorporated herein by reference to Exhibit 10.18.1 of the Current report on Form 8-K dated January 11, 2007)                                                                    
|            | 
|10.18.2     |  | Amendment, dated July 14, 2008, to the Amended and Restated Strategic Alliance Agreement, dated as of April 2, 2002, by and between Endo Pharmaceuticals and Penwest Pharmaceuticals
Co. (incorporated herein by reference to Exhibit 10.18.2 of the Quarterly Report on Form 10-Q for the Quarter Ended June 30, 2008 filed with the Commission on August 1, 2008)          
|            | 
|10.18.3     |  | Third Amendment to the Amended and Restated Strategic Alliance Agreement by and between Penwest Pharmaceuticals Co. and Endo Pharmaceuticals, dated as of March 31, 2009
(incorporated herein by reference to Exhibit 10.18.3 of the Current report on Form 8-K dated April 6, 2009)                                                                                         
|            | 
|10.19       |  | Agreement, dated as of February 1, 2000, by and between Endo Pharmaceuticals and UPS Supply Chain Solutions, Inc. (f/d/b/a Livingston Healthcare Services Inc.) (incorporated
herein by reference to Exhibit 10.19 of the Registration Statement filed with the Commission on June 9, 2000)                                                                                  
|            | 
|10.20       |  | Medical Affairs Support Services Agreement, dated as of June 1, 1999, by and between Endo Pharmaceuticals and Kunitz and Associates, Inc. (incorporated herein by reference to
Exhibit 10.20 of the Registration Statement filed with the Commission on June 9, 2000)                                                                                                        
|            | 
|10.21       |  | Endo Pharmaceuticals Holdings Inc. 2000 Stock Incentive Plan (incorporated herein by reference to Exhibit 10.21 of the Quarterly Report on Form 10-Q for the Quarter Ended
September 30, 2000 filed with the Commission on November 13, 2000)                                                                                                                                
|            | 
|10.22       |  | Endo LLC Amended and Restated 1997 Employee Stock Option Plan (incorporated herein by reference to Exhibit 10.22 of the Quarterly Report on Form 10-Q for the Quarter Ended
September 30, 2000 filed with the Commission on November 13, 2000)                                                                                                                               



---

##### Table of Contents

|            |  |                                                                                                                                                                                                                                                                                                                                   
|----------- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit No. |  | Title                                                                                                                                                                                                                                                                                                                             
|10.23       |  | Endo LLC Amended and Restated 1997 Executive Stock Option Plan (incorporated herein by reference to Exhibit 10.23 of the Quarterly Report on Form 10-Q for the Quarter Ended
September 30, 2000 filed with the Commission on November 13, 2000)                                                                                   
|            | 
|10.24       |  | Endo LLC 2000 Amended and Restated Supplemental Employee Stock Option Plan (incorporated herein by reference to Exhibit 10.24 of the Quarterly Report on Form 10-Q for the Quarter
Ended September 30, 2000 filed with the Commission on November 13, 2000)                                                                       
|            | 
|10.25       |  | Endo LLC 2000 Amended and Restated Supplemental Executive Stock Option Plan (incorporated herein by reference to Exhibit 10.25 of the Quarterly Report on Form 10-Q for the Quarter
Ended September 30, 2000 filed with the Commission on November 13, 2000)                                                                      
|            | 
|10.26       |  | Separation Agreement, dated as of September 8, 2008, between the Endo and Charles A. Rowland, Jr. (incorporated herein by reference to Exhibit 10.1 of the Current Report on Form 8-K
dated September 8, 2008)                                                                                                                    
|            | 
|10.27       |  | Executive Employment Agreement between Endo and Ivan Gergel, M.D., dated as of April 29, 2008 (incorporated herein by reference to Exhibit 10.1 of the Current Report on Form
8-K dated March 25, 2009)                                                                                                                           
|            | 
|10.28       |  | Amended and Restated Employment Agreement, dated as of December 19, 2007, by and between Endo and Nancy J. Wysenski (incorporated herein by reference to Exhibit 10.29 of the Form
10-K for the year ended December 31, 2007 filed with the Commission on February 26, 2008)                                                      
|            | 
|10.28.1     |  | Separation Agreement, dated as of August 25, 2009, by and between Endo and Nancy J. Wysenski (incorporated herein by reference to Exhibit 10.1 of the Current Report on Form 8-K
dated August 31, 2009)                                                                                                                           
|            | 
|10.29       |  | Auction-Rate Securities Rights Agreement, dated November 10, 2008, by and between Endo Pharmaceuticals and UBS AG (incorporated herein by reference to Exhibit 10.29 to the Form 10-K
for the year ended December 31, 2008 filed with the Commission on March 2, 2009)                                                            
|            | 
|10.30       |  | Employment Agreement, dated as of April 1, 2008, by and between Endo and David P. Holveck (incorporated herein by reference to Exhibit 10.30 of the Current Report on Form 8-K dated
March 12, 2008)                                                                                                                              
|            | 
|10.31       |  | License and Supply Agreement by and by and among Novartis, AG, Novartis Consumer Health, Inc. and Endo Pharmaceuticals dated as of March 4, 2008 (incorporated herein by
reference to Exhibit 10.31 of the Form 10-Q for the Quarter ended March 31, 2008 filed with the Commission on May 2, 2008)                               
|            | 
|10.31.1     |  | Amendment No. 1 to the License and Supply Agreement by and by and among Novartis, AG, Novartis Consumer Health, Inc. and Endo Pharmaceuticals Inc. dated as of March 28, 2008
(incorporated herein by reference to Exhibit 10.31.1 of the Form 10-Q for the Quarter ended March 31, 2008 filed with the Commission on May 2, 2008)
|            | 
|10.32       |  | Sales and Marketing Services Agreement, dated as of May 15, 2008 between Endo Pharmaceuticals and Ventiv Commercial Services, LLC (incorporated herein by reference to Exhibit 10.32
of the Form 10-Q for the Quarter ended June 30, 2008 filed with the Commission on August 1, 2008)                                            
|            | 
|10.32.1*    |  | Amendment to the Sales and Marketing Services Agreement, dated as of January 29, 2009 between Endo Pharmaceuticals and Ventiv Commercial Services, LLC (incorporated herein by
reference to Exhibit 10.32.1 to the Form 10-K for the year ended December 31, 2008 filed with the Commission on March 2, 2009)                     
|            | 
|10.32.2     |  | Amendment to the Sales Representative Service Agreement, dated as of April 1, 2009 between Endo Pharmaceuticals and Ventiv Commercial Services, LLC (incorporated herein by reference
to Exhibit 10.32.2 of the Current Report on Form 8-K dated April 7, 2009)                                                                   



---

##### Table of Contents

|            |  |                                                                                                                                                                                                                                                                                                                                      
|----------- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit No. |  | Title                                                                                                                                                                                                                                                                                                                                
|10.32.3     |  | Amendment to the Sales Representative Services Agreement, dated as of May 11, 2009 between Endo Pharmaceuticals and Ventiv Commercial Services, LLC (incorporated herein by reference
to Exhibit 10.32.2 of the Current Report on Form 8-K dated May April 7, 2009)                                                                  
|            | 
|10.33       |  | [Intentionally Omitted]                                                                                                                                                                                                                                                                                                              
|            | 
|10.34       |  | Lease Agreement, dated as of May 5, 2000, by and between Endo Pharmaceuticals and Painters Crossing One Associates, L.P. (incorporated herein by reference to Exhibit
10.34 of the Registration Statement filed with the Commission on June 9, 2000)                                                                                
|            | 
|10.34.1     |  | Amendment to Lease Agreement, dated as of November 6, 2006, by and between Endo Pharmaceuticals and Painters Crossing One Associates, L.P. (incorporated herein by reference to
Exhibit 10.34.1 of the Form 10-Q for the quarter ended September 30, 2006 filed with the Commission on November 9, 2006)                             
|            | 
|10.35       |  | Amended and Restated Employment Agreement, dated as of December 19, 2007, by and between Endo and Caroline B. Manogue (incorporated herein by reference to Exhibit 10.29 of the Form
10-K for the year ended December 31, 2007 filed with the Commission on February 26, 2008)                                                       
|            | 
|10.36       |  | [Intentionally Omitted]                                                                                                                                                                                                                                                                                                              
|            | 
|10.36.1     |  | Separation Agreement, dated as of January 28, 2008, Endo Pharmaceuticals Holdings Inc. and Peter A. Lankau (incorporated herein by reference to Exhibit 10.1 of the Current Report on
Form 8-K dated January 30, 2008)                                                                                                               
|            | 
|10.37       |  | Endo Pharmaceuticals Holdings Inc. 2004 Stock Incentive Plan (incorporated herein by reference to Exhibit 10.37 of the Form 10-Q for the Quarter ended June 30, 2004 filed with
the Commission on August 9, 2004)                                                                                                                    
|            | 
|10.38       |  | Endo Pharmaceuticals Holdings Inc. Amended and Restated 2007 Stock Incentive Plan (incorporated herein by reference to Exhibit B of the Definitive Proxy Statement on Schedule 14A
filed with the Commission on April 29, 2009)                                                                                                      
|            | 
|10.39       |  | Master Development and Toll Manufacturing Agreement, dated as of May 3, 2001, by and between Novartis Consumer Health, Inc. and Endo Pharmaceuticals (incorporated herein by
reference to Exhibit 10.39 of the Form 10-Q for the Quarter Ended June 30, 2001 filed with the Commission on August 14, 2001)                           
|            | 
|10.39.1     |  | First Amendment, effective February 1, 2003, to the Master Development and Toll Manufacturing Agreement between Endo Pharmaceuticals and Novartis Consumer Health, Inc.
(incorporated herein by reference to Exhibit 10.39.1 of the Form 10-Q for the Quarter Ended June 30, 2005 filed with the Commission on August 8, 2005)       
|            | 
|10.39.2     |  | Second Amendment, effective as of December 1, 2004, to the Master Development and Toll Manufacturing Agreement between Endo Pharmaceuticals and Novartis Consumer Health, Inc.
(incorporated herein by reference to Exhibit 10.39.2 of the Form 10-Q for the Quarter Ended June 30, 2005 filed with the Commission on August 8, 2005)
|            | 
|10.40       |  | Lease Agreement between Painters Crossing Three Associates, L.P. and Endo Pharmaceuticals dated January 19, 2007 (incorporated herein by reference to Exhibit 10.40 of the
Annual Report on Form 10-K for the Year Ended December 31, 2006 filed with the Commission on March 1, 2007)                                              
|            | 
|10.40.1     |  | First Amendment to Lease Agreement, dated as of March 3, 2008 by and between Partners Crossing Three Associates, L.P. and Endo Pharmaceuticals (incorporated herein by
reference to Exhibit 10.40.1 of the Form 10-Q for the Quarter ended March 31, 2008 filed with the Commission on May 2, 2008)                                 
|            | 
|10.41       |  | Policy of Endo Pharmaceuticals Holdings Inc. Relating to Insider Trading in Company Securities and Confidentiality of Information (incorporated herein by reference to Exhibit 10.41
of the Form 10-Q for the Quarter ended March 31, 2005 filed with the Commission on May 10, 2005)                                                



---

##### Table of Contents

|            |  |                                                                                                                                                                                                                                                                                                               
|----------- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit No. |  | Title                                                                                                                                                                                                                                                                                                         
|10.42       |  | Form of Indemnification Agreement (incorporated herein by reference to Exhibit 10.1 of the Current Report on Form 8-K, dated May 8, 2009).                                                                                                                                                                    
|            | 
|10.43       |  | Employment Agreement between Endo and Alan G. Levin (incorporated herein by reference to Exhibit 10.2 of the Current Report on Form 8-K, dated May 8, 2009).                                                                                                                                                  
|            | 
|10.44       |  | Lease Agreement, dated as of January 6, 2003, by and between Endo Pharmaceuticals and Dawson Holding Company (incorporated by reference to Exhibit 10.44 of the Annual Report on
Form 10-K for the Year Ended December 31, 2002 filed with the Commission on March 27, 2003)                                  
|            | 
|10.45       |  | Lease Agreement, dated as of November 13, 2003, by and between Endo Pharmaceuticals and Painters Crossing Two Associates, L.P. (incorporated herein by reference to
Exhibit 10.45 of the Annual Report on Form 10-K for the Year Ended December 31, 2003 filed with the Commission on March 15, 2004)        
|            | 
|10.45.1     |  | Amendment to Lease Agreement, dated as of February 16, 2005, by and between Endo Pharmaceuticals and Painters Crossing Two Associates, L.P. (incorporated herein by
reference to Exhibit 10.45.1 of the Current Report on Form 8-K dated February 18, 2005)                                                  
|            | 
|10.45.2     |  | Amendment to Lease Agreement, dated as of November 6, 2006, by and between Endo Pharmaceuticals and Painters Crossing Two Associates, L.P. (incorporated herein by reference to
Exhibit 10.34.1 of the Form 10-Q for the quarter ended September 30, 2006 filed with the Commission on November 9, 2006)      
|            | 
|10.46       |  | License Agreement, dated as of February 25, 2004, by and between Endo Pharmaceuticals and Noven Pharmaceuticals, Inc. (incorporated herein by reference to Exhibit 10.46 of
Amendment No. 2 to the Annual Report on Form 10-K for the Year Ended December 31, 2003 filed with the Commission on June 25, 2004)
|            | 
|10.46.1     |  | Termination Agreement, dated as of February 24, 2006, by and between Noven Pharmaceuticals, Inc. and Endo Pharmaceuticals (incorporated herein by reference to Exhibit 10.46.1
of the Annual Report on Form 10-K for the Year Ended December 31, 2005 filed with the Commission on March 8, 2006)             
|            | 
|10.47       |  | Supply Agreement, dated as of February 25, 2004, by and between Endo Pharmaceuticals and Noven Pharmaceuticals, Inc. (incorporated herein by reference to Exhibit 10.47 of
Amendment No. 2 to the Annual Report on Form 10-K for the Year Ended December 31, 2003 filed with the Commission on June 25, 2004) 
|            | 
|10.48       |  | License and Co-Promotion Rights Agreement, dated as of July 14, 2004, by and between Endo Pharmaceuticals and Vernalis Development Limited (incorporated herein by reference to
Exhibit 10.48 of the Current Report on Form 8-K dated July 19, 2004)                                                          
|            | 
|10.48.1     |  | Co-Promotion Agreement, dated as of July 1, 2005, by and between Endo Pharmaceuticals and Vernalis Development Limited (incorporated by reference to Exhibit 10.48.1 of the
Current Report on Form 8-K dated July 8, 2005)                                                                                    
|            | 
|10.48.2     |  | Second Amendment, dated as of December 12, 2005, to the License Agreement by and between Endo Pharmaceuticals and Vernalis Development Limited (incorporated by reference to
Exhibit 10.48.2 of the Current Report on Form 8-K dated December 29, 2005)                                                       
|            | 
|10.48.3     |  | First Amendment, dated as of December 12, 2005, to the Co-Promotion Agreement by and between Endo Pharmaceuticals and Vernalis Development Limited (incorporated by reference to
Exhibit 10.48.3 of the Current Report on Form 8-K dated December 29, 2005)                                                   
|            | 
|10.48.4     |  | Third Amendment, dated as of July 23, 2007, to the License Agreement by and between Endo Pharmaceuticals and Vernalis Development Limited (incorporated by reference to Exhibit
10.48.4 of the Current Report on Form 8-K dated July 27, 2007)                                                                
|            | 
|10.48.5     |  | Fourth Amendment, dated as of February 19, 2008, to the License Agreement by and between Endo Pharmaceuticals and Vernalis Development Limited (incorporated herein by reference to
Exhibit 10.48.5 of the Form 10-K for the year ended December 31, 2007 filed with the Commission on February 26, 2008)     



---

##### Table of Contents

|            |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|----------- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit No. |  | Title                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|10.48.6     |  | Agreement to Terminate the Co-Promotion Agreement by and between Endo Pharmaceuticals and Vernalis Development Limited, effective February 19, 2008 (incorporated herein by reference
to Exhibit 10.48.6 of the Form 10-K for the year ended December 31, 2007 filed with the Commission on February 26, 2008)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|            | 
|10.49       |  | Loan Agreement, dated as of July 14, 2004, by and between Endo Pharmaceuticals and Vernalis Development Limited (incorporated herein by reference to Exhibit 10.49 of the
Current Report on Form 8-K dated July 19, 2004)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|            | 
|10.49.1     |  | Agreement to Terminate the Loan Agreement by and between Endo Pharmaceuticals and Vernalis Development Limited, effective February 19, 2008 (incorporated herein by reference to
Exhibit 10.49.1 of the Form 10-K for the year ended December 31, 2007 filed with the Commission on February 26, 2008)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|            | 
|10.50       |  | Form of Stock Option Grant Agreement under the 2007 Stock Incentive Plan (incorporated herein by reference to Exhibit 10.50 of the Form 10-K for the year ended December 31, 2008
filed with the Commission on March 2, 2009)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|            | 
|10.51       |  | Form of Restricted Stock Unit Grant Agreement under the 2007 Stock Incentive Plan (incorporated herein by reference to Exhibit 10.51 of the Form 10-K for the year ended December 31,
2008 filed with the Commission on March 2, 2009)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|            | 
|10.52       |  | Agreement and Plan of Merger dated January 5, 2009, by and between Endo, BTB Purchaser, and Indevus Pharmaceuticals, Inc. (incorporated herein by reference to Exhibit 10.1 of the
Current Report on Form 8-K dated January 5, 2009)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|            | 
|10.52.1     |  | Amendment, dated January 7, 2009 to the Agreement and Plan of Merger, by and between Endo, BTB Purchaser, and Indevus Pharmaceuticals, Inc. (incorporated herein by reference to
Exhibit 10.1 of the Current Report on Form 8-K dated January 7, 2009)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|            | 
|10.52.2     |  | Amendment No. 2, dated February 4, 2009, to the Agreement and Plan of Merger, by and among Endo, BTB Purchaser Inc. and Indevus Pharmaceuticals, Inc. (incorporated herein by
reference to Exhibit 2.1 of the Current Report on Form 8-K dated February 6, 2009)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|            | 
|10.53       |  | Form of Stockholder Tender Agreement (incorporated herein by reference to Exhibit 10.2 of the Current Report on Form 8-K dated January 5, 2009)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|            | 
|10.54       |  | Nebido® (n/k/a AveedTM) Contingent Cash Consideration Agreement, dated February 23, 2009,
by and between Endo and American Stock Transfer and Trust Company (incorporated herein by reference to Exhibit 10.54 of the Form 10-K for the year ended December 31, 2008 filed with the Commission on March 2, 2009)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|            | 
|10.55       |  | Octreotide Contingent Cash Consideration Agreement, dated February 23, 2009, by and between Endo and American Stock Transfer and Trust Company (incorporated herein by reference to
Exhibit 10.55 of the Form 10-K for the year ended December 31, 2008 filed with the Commission on March 2, 2009)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|            | 
|10.56       |  | Memorandum of Understanding, dated February 4, 2009, by and among (i) Wolf Popper LLP, counsel for Plaintiff Arthur Gober, CBM IRA Beneficiary Custodian, Beneficiary of Jerome
Gober, (ii) Skadden, Arps, Slate, Meagher & Flom LLP, counsel for Defendants Endo and BTB Purchaser Inc., (iii) The Weiser Law Firm, P.C., counsel for Plaintiff Martin Wexler, (iv) Young Conaway Stargatt & Taylor, LLP, counsel for Defendants
Indevus Pharmaceuticals, Inc., Glenn L. Cooper, Andrew Ferrara, James C. Gale, Michael E. Hanson, Stephen C. McCluski, Cheryl P. Morley and Malcolm Morville, (v) Levi & Korsinsky LLP, counsel for Plaintiff Malena C. Schroeder and (vi) Johnson
Bottini LLP, counsel for Plaintiff H. Steven Mishket (incorporated herein by reference to Exhibit 10.1 of the Current Report on Form 8-K dated February 6, 2009)
|            | 
|10.57       |  | Amended and Restated License, Commercialization and Supply Agreement executed September 18, 2007 between Indevus and Esprit Pharma, Inc. (incorporated herein by reference to Exhibit
10.1 to the Indevus Current Report on Form 8-K dated September 21, 2007)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       



---

##### Table of Contents

|            |  |                                                                                                                                                                                                                                                                                                              
|----------- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit No. |  | Title                                                                                                                                                                                                                                                                                                        
|10.58       |  | Lease Agreement between National Patent Development Corporation and Cedar Brook Corporate Center, L.P. dated October 6, 1997 (incorporated herein by reference to Exhibit 10.9
to the Valera Registration Statement on Form S-1 (File No. 333-123288) filed with the Commission on December 9, 2005)         
|            | 
|10.59       |  | Amendment to Lease between Valera Pharmaceuticals, Inc. and Cedar Brook Corporate Center, L.P. dated January 7, 2004 (incorporated herein by reference to Exhibit 10.10 to the
Valera Registration Statement on Form S-1 (File No. 333-123288) filed with the Commission on December 9, 2005)                
|            | 
|10.60       |  | Lease Agreement between Valera Pharmaceuticals, Inc. and Cedar Brook 7 Corporate Center, L.P. dated March 8, 2005 (incorporated herein by reference to Exhibit 10.11 to the Valera
Registration Statement on Form S-1 (File No. 333-123288) filed with the Commission on December 9, 2005)                   
|            | 
|10.61       |  | Agreement and Plan of merger, dated as of December 11, 2006, by and among Indevus, Hayden Merger Sub, Inc. and Valera Pharmaceuticals, Inc. (incorporated herein by reference to
Exhibit 2.1 to the Indevus Current Report on Form 8-K, dated December 12, 2006)                                             
|            | 
|10.62       |  | License Agreement dated February 18, 1994 between Indevus and Rhone-Poulenc Rorer, S.A. (incorporated herein by reference to the Indevus Registration Statement on Form S-3 or
Amendment I (File no. 33-75826))                                                                                              
|            | 
|10.63       |  | Lease dated February 5, 1997 between Indevus and Ledgemont Realty Trust (incorporated herein by reference to Exhibit 10.87 to the Indevus Form 10-Q for the period ended December 31,
1996 filed with the Commission on February 14, 1997)                                                                   
|            | 
|10.64       |  | License Agreement effective as of November 26, 1999 between Madaus AG and Indevus (incorporated herein by reference to Exhibit 10.113 to the Indevus Form 10-K for the fiscal year
ended September 30, 1999, filed with the Commission on December 28, 1999)                                                 
|            | 
|10.65       |  | Indemnity and Release Agreement between American Home Products Corporation and Indevus dated as of May 30, 2001 (incorporated herein by reference to Exhibit 1.120 to the
Indevus Form 10-Q for the period ended June 30, 2001, filed with the Commission on August 14, 2001)                                
|            | 
|10.66       |  | Supply Agreement between Indevus and Madaus AG dated December 16, 2003 (incorporated herein by reference to Exhibit 10.129 to the Indevus Form 10-Q for the period ended December 31,
2002, filed with the Commission on February 14, 2003)                                                                  
|            | 
|10.67       |  | Development and License Agreement between Indevus and Shire Laboratories Inc. dated March 11, 2003 (incorporated herein by reference to Exhibit 10.130 to the Indevus Form 10-Q
for the period ended March 31, 2003, filed with the Commission on April 13, 2003)                                            
|            | 
|10.68       |  | License, Commercialization and Supply Agreement dated April 6, 2004 between Indevus and Odyssey Pharmaceuticals Inc. (incorporated herein by reference to Exhibit 99.2 to the
Indevus Current Report on Form 8-K dated April 19, 2004)                                                                       
|            | 
|10.68.1     |  | Amendment No. 1 to License, Commercialization and Supply Agreement dated April 30, 2005 between Indevus and Odyssey Pharmaceuticals, Inc. (incorporated herein by reference to
Exhibit 10.143 to the Indevus Form 10-Q for the period ended March 31, 2005, filed with the Commission on May 10, 2005)       
|            | 
|10.69       |  | Indenture of Lease dated December 20, 2004 between Indevus and Mortimer B. Zuckerman and Edward H. Linde, Trustees of Hayden Office Trust (incorporated herein by reference to
Exhibit 10.142 to the Indevus Form 10-Q for the period ended December 31, 2004, filed with the Commission on February 9, 2005)
|            | 
|10.70       |  | Amendment and Consent Agreement dated May 14, 2005 between Indevus, Odyssey Pharmaceuticals, Inc., and Saturn Pharmaceuticals, Inc (incorporated herein by reference to
Exhibit 10.1 to the Indevus Current Report on Form 8-K dated May 17, 2005)                                                           
|            | 
|10.71       |  | License Agreement dated July 28, 2005 between Indevus and Schering Aktiengesellschaft (incorporated herein by reference to Exhibit 10.1 to the Indevus Current Report on Form
8-K dated August 2, 2005)                                                                                                      



---

##### Table of Contents

|            |  |                                                                                                                                                                                                                                                                                                                      
|----------- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit No. |  | Title                                                                                                                                                                                                                                                                                                                
|10.72       |  | Manufacturing and Supply Agreement by and between Indevus and Schering AG, Germany dated on or about October 20, 2006 (incorporated herein by reference to Exhibit 10.158 to the
Indevus Form 10-K for the fiscal year ended September 30, 2006, filed with the Commission on December 7, 2006)                      
|            | 
|10.73       |  | License and Supply Agreement by and between Indevus and Madaus GmbH dated on or about November 3, 2006 (incorporated herein by reference to Exhibit 10.159 to the Indevus Form 10-K
for the fiscal year ended September 30, 2006, filed with the Commission on December 7, 2006)                                     
|            | 
|10.73.1     |  | Amendment and Agreement by and between Indevus and Madaus GmbH dated on or about November 3, 2006 (incorporated herein by reference to Exhibit 10.160 to the Indevus Form 10-K
for the fiscal year ended September 30, 2006, filed with the Commission on December 7, 2006)                                          
|            | 
|10.74       |  | API Supply Agreement by and between Indevus and Helsinn Chemicals SA and Helsinn Advanced Synthesis SA dated on or about November 22, 2006 (incorporated herein by reference to
Exhibit 10.162 to the Indevus Form 10-K for the fiscal year ended September 30, 2006, filed with the Commission on December 7, 2006) 
|            | 
|10.75       |  | Supprelin Contingent Stock Rights Agreement, dated as of April 17, 2007, between Indevus and American Stock Transfer & Trust Company (incorporated herein by reference
to Exhibit 10.1 to the Indevus Current Report on Form 8-K dated April 17, 2007)                                                               
|            | 
|10.75.1     |  | Supplemental Supprelin CSR Agreement, dated as of March 23, 2009, by and between Endo American Stock Transfer & Trust (incorporated herein by reference to Exhibit 10.3 of
the Current Report on Form 8-K dated March 23, 2009)                                                                                      
|            | 
|10.76       |  | Stent Contingent Stock Rights Agreement, dated as of April 17, 2007, between Indevus and American Stock Transfer & Trust Company (incorporated herein by reference to
Exhibit 10.2 to the Indevus Current Report on Form 8-K dated April 17, 2007)                                                                   
|            | 
|10.76.1     |  | Supplemental Stent CSR Agreement, dated as of March 23, 2009, by and between Endo American Stock Transfer & Trust (incorporated herein by reference to Exhibit 10.2 of the
Current Report on Form 8-K dated March 23, 2009)                                                                                          
|            | 
|10.77       |  | Octreotide Contingent Stock Rights Agreement, dated as of April 17, 2007, between Indevus and American Stock Transfer & Trust Company (incorporated herein by reference
to Exhibit 10.3 to the Indevus Current Report on Form 8-K dated April 17, 2007)                                                              
|            | 
|10.77.1     |  | Supplemental Octreotide CSR Agreement, dated as of March 23, 2009, by and between Endo American Stock Transfer & Trust (incorporated herein by reference to Exhibit 10.1 of
the Current Report on Form 8-K dated March 23, 2009)                                                                                     
|            | 
|10.78       |  | Supply Agreement by and between Valera Pharmaceuticals, Inc. and Plantex USA Inc. (incorporated herein by reference to Exhibit 10.1 to the Valera Form 10-Q for the period ended
June 30, 2006, filed with the Commission on August 9, 2006)                                                                         
|            | 
|10.79       |  | Form of License, Supply and Distribution Agreement by and between Indevus Pharmaceuticals, Inc. and Orion Corporation dated April 2, 2008 (incorporated herein by reference to
Exhibit 10.208 to the Indevus Form 10-K for the fiscal year ending September 30, 2008, filed with the Commission on December 11, 2008)
|            | 
|10.80       |  | Form of Purchase and Sale Agreement by and between Ledgemont Royalty Sub LLC and Indevus dated August 26, 2008 (incorporated herein by reference to Exhibit 10.215 to the Indevus
Form 10-K for the fiscal year ending September 30, 2008, filed with the Commission on December 11, 2008)                           
|            | 
|10.81       |  | Form of Note Purchase Agreement by and among Ledgemont Royalty Sub LLC, Indevus and the purchasers named therein dated August 26, 2008 (incorporated herein by reference to Exhibit
10.216 to the Indevus Form 10-K for the fiscal year ending September 30, 2008, filed with the Commission on December 11, 2008)   



---

##### Table of Contents

|            |  |                                                                                                                                                                                                                                                                                                                                                                                                                             
|----------- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit No. |  | Title                                                                                                                                                                                                                                                                                                                                                                                                                       
|10.82       |  | Form of Indenture by and between Ledgemont Royalty Sub LLC and U.S. Bank National Association dated August 26, 2008 (incorporated herein by reference to Exhibit 10.217 to the
Indevus Form 10-K for the fiscal year ending September 30, 2008, filed with the Commission on December 11, 2008)                                                                                                                             
|            | 
|10.83       |  | Form of Pledge and Security Agreement made by Indevus to U.S. Bank National Association, as Trustee, dated August 26, 2008 (incorporated herein by reference to Exhibit 10.218 to the
Indevus Form 10-K for the fiscal year ending September 30, 2008, filed with the Commission on December 11, 2008)                                                                                                                      
|            | 
|10.84       |  | Form of Development, License and Commercialization Agreement made by and between Indevus and Teva Pharmaceutical Industries Ltd., dated September 25, 2008 (incorporated herein by
reference to Exhibit 10.219 to the Indevus Form 10-K for the fiscal year ending September 30, 2008, filed with the Commission on December 11, 2008)                                                                                      
|            | 
|10.85       |  | First Amendment to Amended and Restated License, Commercialization and Supply Agreement between Indevus Pharmaceuticals, Inc. and Allergan USA, Inc. dated as of January 9, 2009
(incorporated herein by reference to Exhibit 10.1 to the Indevus Current Report on Form 8-K, dated January 15, 2009)                                                                                                                       
|            | 
|10.86       |  | Agreement between National Patent Development Corporation and Dento-Med Industries, Inc. dated November 30, 1989 (incorporated herein by reference to Exhibit 10.17 to the
Valera Registration Statement on Form S-1 (File No. 333-123288) filed with the Commission on December 9, 2005)                                                                                                                                   
|            | 
|10.87       |  | Contribution Agreement between Hydro Med Sciences, Inc. and GP Strategies Corporation dated June 30, 2000 (incorporated herein by reference to Exhibit 10.12 to the Valera
Registration Statement on Form S-1 (File No. 333-123288) filed with the Commission on December 9, 2005)                                                                                                                                          
|            | 
|10.88       |  | Termination of Agreement dated September 12, 1990 between National Patent Development Corporation and The Population Council, Inc. dated October 1, 1997 (incorporated herein by
reference to Exhibit 10.6 to the Valera Registration Statement on Form S-1 (File No. 333-123288) filed with the Commission on December 9, 2005).                                                                                           
|            | 
|10.88.1     |  | Amendment to the Termination of the Joint Development Agreement between GP Strategies Corporation and The Population Council, Inc. dated November 29, 2001 (incorporated herein
by reference to Exhibit 10.7 to the Valera Registration Statement on Form S-1 (File No. 333-123288) filed with the Commission on December 9, 2005).                                                                                         
|            | 
|10.88.2     |  | Amendment No. 2 to Termination Agreement between Valera Pharmaceuticals, Inc. and The Population Council, Inc. dated August 31, 2004 (incorporated herein by reference to Exhibit
10.8 to the Valera Registration Statement on Form S-1 (File No. 333-123288) filed with the Commission on December 9, 2005)                                                                                                                
|            | 
|10.89       |  | Credit Agreement dated as of October 16, 2009 among Endo Pharmaceuticals Holdings Inc., the lenders named therein, JPMorgan Chase Bank, N.A., as administrative agent, Barclays
Capital as syndication agent, and J.P. Morgan Securities Inc. and Barclays Capital as Joint Bookrunners and Joint Lead Arrangers (incorporated herein by reference to Exhibit 10.1 of the Current Report on Form 8-K dated October 22,
2009)
|            | 
|10.90       |  | Pledge and Security Agreement dated as of October 16, 2009 by and among Endo Pharmaceuticals Holdings Inc., the lenders named therein and JPMorgan Chase Bank, N.A., as
administrative agent (incorporated herein by reference to Exhibit 10.1 of the Current Report on Form 8-K dated October 22, 2009)                                                                                                                    
|            | 
|21          |  | Subsidiaries of the Registrant                                                                                                                                                                                                                                                                                                                                                                                              
|            | 
|23          |  | Consent of Independent Registered Public Accounting Firm                                                                                                                                                                                                                                                                                                                                                                    
|            | 
|24          |  | Power of Attorney                                                                                                                                                                                                                                                                                                                                                                                                           



---

##### Table of Contents

|            |  |                                                                                                                                                                           
|----------- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit No. |  | Title                                                                                                                                                                     
|31.1        |  | Certification of the President and Chief Executive Officer of Endo pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                                              
|            | 
|31.2        |  | Certification of the Chief Financial Officer of Endo pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                                                            
|            | 
|32.1        |  | Certification of the President and Chief Executive Officer of Endo pursuant to 18 U.S.C Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of
2002
|            | 
|32.2        |  | Certification of the Chief Financial Officer of Endo pursuant to 18 U.S.C Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002              



|* | Confidential portions of this exhibit (indicated by asterisks) have been redacted and filed separately with the Securities and Exchange Commission pursuant to a
confidential treatment request in accordance with Rule 24b-2 of the Securities Exchange Act of 1934, as amended.
|- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------