Document:

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                                                                     EXHIBIT 4.1

                                                                     ANNEX III
                                                                         TO
                                                                    SUBSCRIPTION
                                                                      AGREEMENT

NEITHER THIS WARRANT NOR ISSUANCE OF THE SECURITIES ISSUABLE UPON THE EXERCISE
HEREOF TO THE HOLDER HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED OR QUALIFIED OR REGISTERED UNDER STATE SECURITIES OR BLUE SKY LAWS.
NEITHER THIS WARRANT NOR SUCH SECURITIES MAY BE SOLD, OFFERED FOR SALE, PLEDGED,
HYPOTHECATED OR OTHERWISE TRANSFERRED OR DISPOSED OF EXCEPT IN COMPLIANCE WITH
THE SECURITIES ACT OF 1933, AS AMENDED, APPLICABLE STATE SECURITIES OR BLUE SKY
LAWS AND THE APPLICABLE RULES AND REGULATIONS THEREUNDER.

THIS WARRANT MAY NOT BE TRANSFERRED EXCEPT AS PROVIDED IN SECTION 24.

No. W-                                            Right to Purchase
                                                  __________ Shares
                                                  of Common Stock of
                                                  Questcor Pharmaceuticals, Inc.

                         QUESTCOR PHARMACEUTICALS, INC.

                          COMMON STOCK PURCHASE WARRANT

      QUESTCOR PHARMACEUTICALS, INC., a California corporation, hereby certifies
that, for value received, [INSERT NAME OF HOLDER] or registered assigns (the
"Holder"), is entitled, subject to the terms set forth below, to purchase from
the Company at any time or from time to time before 5:00 p.m., New York City
time, on the Expiration Date (such capitalized term and all other capitalized
terms used herein having the respective meanings provided herein), ____________
fully paid and nonassessable shares of Common Stock at a purchase price per
share equal to the Purchase Price. The number of such shares of Common Stock and
the Purchase Price are subject to adjustment as provided in this Warrant.
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            1. DEFINITIONS.

            (a) As used in this Warrant, the term "Holder" shall have the
meaning assigned to such term in the first paragraph of this Warrant.

            (b) All the agreements or instruments herein defined shall mean such
agreements or instruments as the same may from time to time be supplemented or
amended or the terms thereof waived or modified to the extent permitted by, and
in accordance with, the terms thereof and of this Warrant.

            (c) The following terms shall have the following meanings (such
meanings to be equally applicable to both the singular and plural forms of the
terms defined):

            "Aggregate Diluted Price Percentage" means, at any time of
      determination, the aggregate Diluted Price Percentages for all issuances
      of Newly Issued Shares issued in reliance on Section (8)(i) at or prior to
      such time of determination.

            "Aggregate Purchase Price" means at any time an amount equal to the
      product obtained by multiplying (x) the Purchase Price times (y) the
      number of shares of Common Stock for which this Warrant may be exercised
      at such time.

            "Aggregation Parties" shall have the meaning provided in Section
      2(c).

            "AMEX" means the American Stock Exchange, Inc.

            "Board of Directors" means the Board of Directors of the Company.

            "Board Resolution" means a copy of a resolution certified by the
      Secretary or an Assistant Secretary of the Corporation to have been duly
      adopted by the Board of Directors, or duly authorized committee thereof
      (to the extent permitted by applicable law), and to be in full force and
      effect on the date of such certification, and delivered to the Holder.

            "Business Day" means any day other than a Saturday, Sunday or other
      day on which commercial banks in The City of New York are authorized or
      required by law or executive order to remain closed.

                                      -2-
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            "Certificate of Determination" shall have the meaning provided in
      the Subscription Agreement.

            "Common Stock" includes the Company's Common Stock, no par value per
      share, (and any purchase rights issued with respect to the Common Stock in
      the future) as authorized on the date hereof, and any other securities
      into which or for which the Common Stock (and any such rights issued with
      respect to the Common Stock) may be converted or exchanged pursuant to a
      plan of recapitalization, reorganization, merger, sale of assets or
      otherwise and any stock (other than Common Stock) and other securities of
      the Company or any other Person which the Holder at any time shall be
      entitled to receive, or shall have received, on the exercise of this
      Warrant, in lieu of or in addition to Common Stock.

            "Common Stock Equivalents" means any warrant, option, subscription
      or purchase right with respect to shares of Common Stock, any security
      convertible into, exchangeable for, or otherwise entitling the holder
      thereof to acquire, shares of Common Stock or any warrant, option,
      subscription or purchase right with respect to any such convertible,
      exchangeable or other security.

            "Company" shall include Questcor Pharmaceuticals, Inc., a California
      corporation, and any corporation that shall succeed to or assume the
      obligations of Questcor Pharmaceuticals, Inc. hereunder in accordance with
      the terms hereof.

            "Current Fair Market Value" means, when used with respect to the
      Common Stock as of a specified date:

            (i) if the Common Stock is then listed for trading on a national
      securities exchange or through the Nasdaq or the Nasdaq SmallCap, (A) the
      average of the daily volume-weighted average prices of the Common Stock on
      the principal national securities exchange or the Nasdaq or the Nasdaq
      SmallCap, as the case may be, on which the Common Stock is so listed for
      each Trading Day in the period of five consecutive Trading Days ending on
      and including such date, as reported by Bloomberg Financial, L.P.;

            (ii) if on the date as of which Current Fair Market Value is to be
      determined the Common Stock is not so

                                      -3-
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      listed, the average of the highest bid and lowest asked prices of the
      Common Stock quoted in the Nasdaq OTC Bulletin Board or the
      over-the-counter-market, for each Trading Day in the period of five
      consecutive Trading Days ending on and including such date; or

            (iii) if on the date for which Current Fair Market Value is to be
      determined the Common Stock is not listed on any national securities
      exchange, the Nasdaq or the Nasdaq SmallCap or quoted in the Nasdaq System
      or the over-the-counter market, the Current Fair Market Value of Common
      Stock shall be the highest price per share which the Company could then
      obtain from a willing buyer (not an employee or director of the Company at
      the time of determination), under no compulsion to buy, in an arms'-length
      transaction for shares of Common Stock sold by the Company, from
      authorized but unissued shares, as determined in good faith by the Board
      of Directors.

            "Diluted Price Percentage" means, with respect to any issuance of
      Newly Issued Shares issued in reliance on Section 8(i), the Diluted Price
      Percentage computed in accordance with the following formula:

                                         (( O + (C / FMV)) x PP )
                                         ----------------
                              DPP = PP - (( O + N ))
                                    ---------------------
                                             PP

      where,

         C      =  aggregate consideration received by the Company for the
                   Newly Issued Shares

         N      =  number of Newly Issued Shares

         O      =  number of shares of Common Stock outstanding (calculated on
                   a fully-diluted basis assuming the conversion of all options,
                   warrants, purchase rights or convertible securities which are
                   exercisable at the time of the issuance of the Newly Issued
                   Shares) immediately prior to the issuance of the Newly Issued
                   Shares

         FMV    =  Current Fair Market Value of the Common

                                      -4-
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                   Stock at the time of issuance of the Newly Issued Shares

         PP     =  Purchase Price immediately prior to the issuance of the
                   Newly Issued Shares

         DPP    =  Diluted Price Percentage for such issuance of Newly Issued
                   Shares

            "DTC" means The Depository Trust Company.

            "ESPP" means the Company's 2000 Employee Stock Purchase Plan.

            "Excluded Shares" shall have the meaning provided in the Certificate
      of Determination.

            "Expiration Date" means January 15, 2007.

            "FAST" means the First Automated Securities Transfer program of DTC.

            "Issuance Date" means the date of original issuance of this Warrant
      or its predecessor instrument.

            "Majority Holders" shall have the meaning provided in the
      Certificate of Determination; provided, however, that if at the time the
      Majority Holders is being determined no Series B Shares are outstanding
      then "Majority Holders" shall mean registered holders of this Warrant and
      the Other Warrants who hold in the aggregate this Warrant and Other
      Warrants which entitle the holders to purchase a majority of the shares of
      Common Stock (or Other Securities) issuable at the time of determination
      upon exercise of the unexercised portions of this Warrant and all the
      Other Warrants (in each case determined without regard to the limitations
      on exercise contained in Section 2(c) of this Warrant and the Other
      Warrants).

            "Nasdaq" means the Nasdaq National Market.

            "Nasdaq SmallCap" means the Nasdaq SmallCap Market.

            "Newly Issued Shares" shall have the meaning provided in Section 8.

                                      -5-
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            "1934 Act" means the Securities Exchange Act of 1934, as amended.

            "1933 Act" means the Securities Act of 1933, as amended.

            "NYSE" means the New York Stock Exchange, Inc.

            "Other Securities" means any stock (other than Common Stock) and
      other securities of the Company or any other Person which the Holder at
      any time shall be entitled to receive, or shall have received, on the
      exercise of this Warrant, in lieu of or in addition to Common Stock, or
      which at any time shall be issuable or shall have been issued in exchange
      for or in replacement of Common Stock or Other Securities pursuant to
      Section 4.

            "Other Subscription Agreements" means the several Subscription
      Agreements, dated as of the date of the Subscription Agreement, by and
      between the Company and the several buyers named therein.

            "Other Warrants" means the Common Stock Purchase Warrants (other
      than this Warrant) issued or issuable by the Company pursuant to the
      Subscription Agreement and the Other Subscription Agreements.

            "Permitted Indebtedness" shall have the meaning provided in the
      Certificate of Determination.

            "Person" means an individual, partnership, corporation, limited
      liability company, trust or unincorporated organization, or a government
      or a governmental agency or political subdivision.

            "Purchase Price" means $1.0824, subject to adjustment as provided in
      this Warrant.

            "QIB" means a "qualified institutional buyer" as defined in Rule
      144A.

            "Registration Statement" shall have the meaning provided in the
      Subscription Agreement.

            "Restricted Ownership Percentage" shall have the meaning provided in
      Section 2(c).

                                      -6-
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            "Restricted Securities" means securities that are not eligible for
      resale pursuant to Rule 144(k) under the 1933 Act (or any successor
      provision).

            "Reorganization Event" means the occurrence of any one or more of
      the following events:

            (i) any consolidation, merger or similar transaction of the Company
      or any Subsidiary with or into another entity (other than a merger or
      consolidation or similar transaction of a Subsidiary into the Company or a
      wholly-owned Subsidiary); or the sale or transfer of all or substantially
      all of the assets of the Company and the Subsidiaries in a single
      transaction or a series of related transactions; or

            (ii) the occurrence of any transaction or event in connection with
      which all or substantially all the Common Stock shall be exchanged for,
      converted into, acquired for or constitute the right to receive securities
      of any other Person (whether by means of a Tender Offer, liquidation,
      consolidation, merger, share exchange, combination, reclassification,
      recapitalization, or otherwise); or

            (iii) the acquisition by a Person or group of Persons acting in
      concert as a partnership, limited partnership, syndicate or group, as a
      result of a tender or exchange offer, open market purchases, privately
      negotiated purchases or otherwise, of beneficial ownership of securities
      of the Company representing 50% or more of the combined voting power of
      the outstanding voting securities of the Company ordinarily (and apart
      from rights accruing in special circumstances) having the right to vote in
      the election of directors.

            "Rule 144A" means Rule 144A as promulgated under the 1933 Act.

            "SEC" means the Securities and Exchange Commission.

            "Series B Shares" means the shares of Series B Preferred Stock, no
      par value per share, of the Company issued pursuant to the Subscription
      Agreement and the Other Subscription Agreements.

                                      -7-
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            "Subscription Agreement" means the Subscription Agreement, dated as
      of December 29, 2002, by and between the Company and the original Holder
      of this Warrant.

            "Subsidiary" means any corporation or other entity of which a
      majority of the capital stock or other ownership interests having ordinary
      voting power to elect a majority of the board of directors or other
      Persons performing similar functions are at the time directly or
      indirectly owned by the Company.

            "Tender Offer" means a tender offer, exchange offer or other offer
      by the Company to repurchase outstanding shares of its capital stock.

            "Trading Day" means a day on which AMEX, or if the Company's Common
      Stock ceases to be traded on AMEX, whichever of the national securities
      exchange, the Nasdaq or the Nasdaq SmallCap which then constitutes the
      principal securities market for the Common Stock, is open for general
      trading.

            "Warrant Shares" means the shares of Common Stock issuable upon
      exercise of this Warrant.

            2. EXERCISE OF WARRANT.

            (A) EXERCISE. This Warrant may be exercised by the Holder in whole
at any time or in part from time to time on or before the Expiration Date by (x)
surrendering this Warrant to the Company, (y) giving a subscription form in the
form of EXHIBIT 1 to this Warrant (duly executed by the Holder) to the Company,
and (z) making payment, in cash or by certified or official bank check payable
to the order of the Company, or by wire transfer of funds to the account of the
Company, in any such case, in the amount obtained by multiplying (a) the number
of shares of Common Stock designated by the Holder in the subscription form by
(b) the Purchase Price then in effect. On any partial exercise the Company will
forthwith issue and deliver to or upon the order of the Holder a new Warrant or
Warrants of like tenor, in the name of the Holder or as the Holder (upon payment
by the Holder of any applicable transfer taxes) may request, providing in the
aggregate on the face or faces thereof for the purchase of the number of shares
of Common Stock for which such Warrant or Warrants may still be exercised. The
subscription form may be surrendered by telephone line facsimile transmission to
such telephone number for the Company

                                      -8-
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as shall have been specified in writing to the Holder by the Company; provided,
however, that if the subscription form is given to the Company by telephone line
facsimile transmission the Holder shall send an original of such subscription
form to the Company within ten Business Days after such subscription form is so
given to the Company; provided further, however, that any failure or delay on
the part of the Holder in giving such original of any subscription form shall
not affect the validity or the date on which such subscription form is so given
by telephone line facsimile transmission.

            (B) NET EXERCISE. Notwithstanding anything to the contrary contained
in Section 2(a), the Holder may elect to exercise this Warrant, in whole at any
time or in part from time to time, by receiving shares of Common Stock equal to
the net issuance value (as determined below) of this Warrant, or any part
hereof, upon surrender of the subscription form annexed hereto (duly executed by
the Holder) to the Company (followed by surrender of this Warrant to the Company
within three Trading Days after surrender of such subscription form), in which
event the Company shall issue to the Holder a number of shares of Common Stock
computed using the following formula:

                                 X = Y x (A - B)
                                     -----------
                                          A

where,

            X  =  the number of shares of Common Stock to be issued to the
                  Holder

            Y  =  the number of shares of Common Stock as to which this
                  Warrant is to be exercised

            A  =  the Current Fair Market Value of one share of Common Stock
                  calculated as of the last Trading Day immediately preceding
                  the exercise of this Warrant

            B  =  the Purchase Price

            (C)   9.9% LIMITATION.

            (1) Notwithstanding anything to the contrary contained herein, the
number of shares of Common Stock that may be acquired by the Holder upon
exercise pursuant to the terms hereof at any time shall not exceed a number
that, when added to

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the total number of shares of Common Stock deemed beneficially owned by the
Holder (other than by virtue of the ownership of securities or rights to acquire
securities (including Series B Shares) that have limitations on the Holder's
right to convert, exercise or purchase similar to the limitation set forth
herein (the "Excluded Shares"), together with all shares of Common Stock deemed
beneficially owned at such time (other than by virtue of the ownership of the
Excluded Shares) by Persons whose beneficial ownership of Common Stock would be
aggregated with the beneficial ownership by the Holder for purposes of
determining whether a group exists or for purposes of determining the Holder's
beneficial ownership (the "Aggregation Parties"), in either such case for
purposes of Section 13(d) of the 1934 Act and Regulation 13D-G thereunder
(including, without limitation, as the same is made applicable to Section 16 of
the 1934 Act and the rules promulgated thereunder), would result in beneficial
ownership by the Holder or such group of more than 9.9% of the shares of Common
Stock for purposes of Section 13(d) or Section 16 of the 1934 Act and the rules
promulgated thereunder (as the same may be modified by the Holder as provided
herein, the "Restricted Ownership Percentage"). The Holder shall have the right
(x) at any time and from time to time to reduce its Restricted Ownership
Percentage immediately upon notice to the Company in the event and only to the
extent that Section 16 of the 1934 Act or the rules promulgated thereunder (or
any successor statute or rules) is changed to reduce the beneficial ownership
percentage threshold thereunder to a percentage less than 9.9% and (y) at any
time and from time to time, to increase its Restricted Ownership Percentage
unless the Holder shall have, by written instrument delivered to the Company,
irrevocably waived its rights to so increase its Restricted Ownership
Percentage. If at any time the limits in this Section 2(c) make this Warrant
unexercisable in whole or in part, the Company shall not by reason thereof be
relieved of its obligation to issue shares of Common Stock at any time or from
time to time thereafter upon exercise of this Warrant as and when shares of
Common Stock may be issued in compliance with such restrictions.

            (2) For purposes of this Section 2(c), in determining the number of
outstanding shares of Common Stock at any time the Holder may rely on the number
of outstanding shares of Common Stock as reflected in (1) the Company's then
most recent Form 10-Q, Form 10-K or other public filing with the SEC, as the
case may be, (2) a public announcement by the Company that is later than any
such filing referred to in the preceding clause (1) or (3) any other notice by
the Company or its transfer agent

                                      -10-
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setting forth the number shares of Common Stock outstanding and knowledge the
Holder may have about the number of shares of Common Stock issued upon
conversion or exercise of Series B Shares or other Common Stock Equivalents by
any Person, including the Holder, which are not reflected in the preceding
clauses (1) through (3). Upon the written request of the Holder, the Company
shall within three Business Days confirm in writing to the Holder the number of
shares of Common Stock then outstanding. In any case, the number of outstanding
shares of Common Stock shall be determined after giving effect to the conversion
or exercise of Common Stock Equivalents, including the Series B Shares and the
Warrants, by the Holder or its affiliates, in each such case subsequent to, the
date as of which such number of outstanding shares of Common Stock was reported.

            3. DELIVERY OF STOCK CERTIFICATES, ETC., ON EXERCISE. (a) As soon as
practicable after the exercise of this Warrant and in any event within three
Trading Days thereafter, upon the terms and subject to the conditions of this
Warrant, the Company at its expense (including the payment by it of any
applicable issue or stamp taxes) will cause to be issued in the name of and
delivered to the Holder, or as the Holder (upon payment by the Holder of any
applicable transfer taxes) may direct, a certificate or certificates for the
number of fully paid and nonassessable shares of Common Stock (or Other
Securities) to which the Holder shall be entitled on such exercise, in such
denominations as may be requested by the Holder, plus, in lieu of any fractional
share to which the Holder would otherwise be entitled, cash equal to such
fraction multiplied by the then Current Fair Market Value of one full share of
Common Stock, together with any other stock or Other Securities or any property
(including cash, where applicable) to which the Holder is entitled upon such
exercise pursuant to Section 2 or otherwise. In lieu of delivering physical
certificates for the shares of Common Stock or (Other Securities) issuable upon
any exercise of this Warrant, provided the Company's transfer agent is
participating in the DTC's FAST program, upon request of the Holder, the Company
shall use commercially reasonable efforts to cause its transfer agent
electronically to transmit such shares of Common Stock (or Other Securities)
issuable upon conversion to the Holder (or its designee), by crediting the
account of the Holder's (or such designee's) broker with DTC through its Deposit
Withdrawal Agent Commission system (provided that the same time periods herein
as for stock certificates shall apply). The Company shall pay any taxes and
other governmental charges that may be imposed under

                                      -11-
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the laws of the United States of America or any political subdivision or taxing
authority thereof or therein in respect of the issue or delivery of shares of
Common Stock (or Other Securities) or payment of cash upon exercise of this
Warrant (other than income taxes imposed on the Holder). The Company shall not
be required, however, to pay any tax or other charge imposed in connection with
any transfer involved in the issue of any certificate for shares of Common Stock
(or Other Securities) issuable upon exercise of this Warrant or payment of cash
to any Person other than the Holder, and in case of such transfer or payment the
Company shall not be required to deliver any certificate for shares of Common
Stock (or Other Securities) upon such exercise or pay any cash until such tax or
charge has been paid or it has been established to the Company's reasonable
satisfaction that no such tax or charge is due. Upon exercise of this Warrant as
provided herein, the Company's obligation to issue and deliver the certificates
for Common Stock shall be absolute and unconditional, irrespective of the
absence of any action by the Holder to enforce the same, any waiver or consent
with respect to any provision hereof, the recovery of any judgment against any
Person or any action to enforce the same, any failure or delay in the
enforcement of any other obligation of the Company to the Holder, or any setoff,
counterclaim, recoupment, limitation or termination, or any breach or alleged
breach by the Holder or any other Person of any obligation to the Company or any
violation or alleged violation of law by the Holder or any other Person, and
irrespective of any other circumstance which might otherwise limit such
obligation of the Company to the Holder in connection with such exercise.

            (b) If in any case the Company shall fail to issue and deliver the
shares of Common Stock to the Holder in connection with a particular exercise of
this Warrant within five Trading Days after the Holder gives the subscription
form and pays the Purchase Price, if any, for such exercise, in addition to any
other liabilities the Company may have hereunder and under applicable law (A)
the Company shall pay or reimburse the Holder on demand for all out-of-pocket
expenses, including, without limitation, reasonable fees and expenses of legal
counsel, incurred by the Holder as a result of such failure, (B) if as a result
of such failure the Holder shall suffer any direct damages or liabilities from
such failure (including, without limitation, margin interest and the cost of
purchasing securities to cover a sale (whether by the Holder or the Holder's
securities broker) or borrowing of shares of Common Stock by the Holder for
purposes of settling any trade involving a sale of shares of Common Stock made
by the Holder during the

                                      -12-
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period beginning on the Issuance Date and ending on the date the Company
delivers or causes to be delivered to the Holder such shares of Common Stock),
then the Company shall upon demand of the Holder pay to the Holder an amount
equal to the actual direct, out-of-pocket damages and liabilities suffered by
the Holder by reason thereof which the Holder documents to the reasonable
satisfaction of the Company, and (C) the Holder may by written notice (which may
be given by mail, courier, personal service or telephone line facsimile
transmission) or oral notice (promptly confirmed in writing), given at any time
prior to delivery to the Holder of the shares of Common Stock issuable in
connection with such exercise of the Holder's right, rescind such exercise and
the subscription form relating thereto, in which case the Holder shall
thereafter be entitled to exercise that portion of this Warrant as to which such
exercise is so rescinded and to exercise its other rights and remedies with
respect to such failure by the Company. Notwithstanding the foregoing the
Company shall not be liable to the Holder under clauses (A) or (B) of the
immediately preceding sentence to the extent the failure of the Company to
deliver or to cause to be delivered such shares of Common Stock results from
fire, flood, storm, earthquake, shipwreck, strike, war, acts of terrorism, crash
involving facilities of a common carrier, acts of God, or any similar event
outside the control of the Company (it being understood that the action or
failure to act of the Company's transfer agent shall not be deemed an event
outside the control of the Company except to the extent resulting from fire,
flood, storm, earthquake, shipwreck, strike, war, acts of terrorism, crash
involving facilities of a common carrier, acts of God, or any similar event
outside the control of such transfer agent or the bankruptcy, liquidation, or
reorganization of such transfer agent under any bankruptcy, insolvency or other
similar law). The Holder shall notify the Company in writing (or by telephone
conversation, confirmed in writing) as promptly as practicable following the
third Trading Day after the Holder exercises this Warrant if the Holder becomes
aware that such shares of Common Stock so issuable have not been received as
provided herein, but any failure so to give such notice shall not affect the
Holder's rights under this Warrant or otherwise.

            4. ADJUSTMENT FOR DIVIDENDS IN OTHER STOCK, PROPERTY, ETC.;
RECLASSIFICATION, ETC. In case at any time or from time to time on or after the
Issuance Date, all the holders of Common Stock (or Other Securities) shall have
received, or (on or after the record date fixed for the determination of
stockholders eligible to receive) shall have become entitled to receive, without
payment therefor,

                                      -13-
<PAGE>
            (a) other or additional stock, rights, warrants or other securities
      or property (other than cash) by way of dividend, or

            (b) any cash (excluding cash dividends payable solely out of
      earnings or earned surplus of the Company), or

            (c) other or additional stock, rights, warrants or other securities
      or property (including cash) by way of spin-off, split-up,
      reclassification, recapitalization, combination of shares or similar
      corporate rearrangement,

other than (i) additional shares of Common Stock (or Other Securities) issued as
a stock dividend or in a stock-split (adjustments in respect of which are
provided for in Section 6) and (ii) rights or warrants to subscribe for Common
Stock at less than the Current Fair Market Value (adjustments in respect of
which are provided in Section 7), then and in each such case the Holder, on the
exercise hereof as provided in Section 2, shall be entitled to receive the
amount of stock, rights, warrants and Other Securities and property (including
cash in the cases referred to in subdivisions (b) and (c) of this Section 4)
which the Holder would hold on the date of such exercise if on the date of such
action specified in the preceding clauses (a) through (c) (or the record date
therefor) the Holder had been the holder of record of the number of shares of
Common Stock called for on the face of this Warrant and had thereafter, during
the period from the date thereof to and including the date of such exercise,
retained such shares and all such other or additional stock, rights, warrants
and Other Securities and property (including cash in the case referred to in
subdivisions (b) and (c) of this Section 4) receivable by the Holder as
aforesaid during such period, giving effect to all adjustments called for during
such period by Section 5.

            5. EXERCISE UPON A REORGANIZATION EVENT. In case of any
Reorganization Event the Company shall, as a condition precedent to the
consummation of the transactions constituting, or announced as, such
Reorganization Event, cause effective provisions to be made so that the Holder
shall have the right thereafter, by exercising this Warrant (in lieu of the
shares of Common Stock of the Company and Other Securities or property
purchasable and receivable upon exercise of the rights represented hereby
immediately prior to such Reorganization Event) to purchase the kind and amount
of shares of stock and Other Securities and property (including cash) receivable
upon

                                      -14-
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such Reorganization Event by a holder of the number of shares of Common Stock
that might have been received upon exercise of this Warrant immediately prior to
such Reorganization Event. Any such provision shall include provisions for
adjustments in respect of such shares of stock and Other Securities and property
that shall be as nearly equivalent as may be practicable to the adjustments
provided for in this Warrant. The provisions of this Section 5 shall apply to
successive Reorganization Events.

            6. ADJUSTMENT FOR CERTAIN EXTRAORDINARY EVENTS. If on or after the
Issuance Date the Company shall (i) issue additional shares of the Common Stock
as a dividend or other distribution on outstanding Common Stock, (ii) subdivide
or reclassify its outstanding shares of Common Stock, or (iii) combine its
outstanding shares of Common Stock into a smaller number of shares of Common
Stock, then, in each such event, the Purchase Price shall, simultaneously with
the happening of such event, be adjusted by multiplying the Purchase Price in
effect immediately prior to such event by a fraction, the numerator of which
shall be the number of shares of Common Stock outstanding immediately prior to
such event and the denominator of which shall be the number of shares of Common
Stock outstanding immediately after such event, and the product so obtained
shall thereafter be the Purchase Price then in effect. The Purchase Price, as so
adjusted, shall be readjusted in the same manner upon the happening of any
successive event or events described herein in this Section 6. The Holder shall
thereafter, on the exercise hereof as provided in Section 2, be entitled to
receive that number of shares of Common Stock determined by multiplying the
number of shares of Common Stock which would be issuable on such exercise
immediately prior to such issuance, subdivision or combination, as the case may
be, by a fraction of which (i) the numerator is the Purchase Price in effect
immediately prior to such issuance and (ii) the denominator is the Purchase
Price in effect on the date of such exercise.

            7. ISSUANCE OF RIGHTS OR WARRANTS TO COMMON STOCKHOLDERS AT LESS
THAN CURRENT FAIR MARKET VALUE. If the Company shall on or after the Issuance
Date issue rights or warrants to all holders of its outstanding shares of Common
Stock entitling them to subscribe for or purchase shares of Common Stock at a
price per share less than the Current Fair Market Value on the record date fixed
for the determination of stockholders entitled to receive such rights or
warrants, then

                                      -15-
<PAGE>
            (a) the Purchase Price shall be adjusted so that the same shall
      equal the price determined by multiplying the Purchase Price in effect at
      the opening of business on the day after such record date by a fraction of
      which the numerator shall be the number of shares of Common Stock
      outstanding at the close of business on such record date plus the number
      of shares which the aggregate offering price of the total number of shares
      so offered would purchase at such Current Fair Market Value, and the
      denominator shall be the number of shares of Common Stock outstanding on
      the close of business on such record date plus the total number of
      additional shares of Common Stock so offered for subscription or purchase;
      and

            (b) the number of shares of Common Stock which the Holder may
      thereafter purchase upon exercise of this Warrant at the opening of
      business on the day after such record date shall be increased to a number
      equal to the quotient obtained by dividing (x) the Aggregate Purchase
      Price in effect immediately prior to such adjustment in the Purchase Price
      pursuant to clause (a) of this Section 7 by (y) the Purchase Price in
      effect immediately after such adjustment in the Purchase Price pursuant to
      clause (a) of this Section 7.

Such adjustment shall become effective immediately after the opening of business
on the day following the record date fixed for determination of stockholders
entitled to receive such rights or warrants. To the extent that shares of Common
Stock are not delivered pursuant to such rights or warrants, upon the expiration
or termination of such rights or warrants, the Purchase Price shall be
readjusted to the Purchase Price which would then be in effect had the
adjustments made upon the issuance of such rights or warrants been made on the
basis of delivery of only the number of shares of Common Stock actually
delivered and the number of shares of Common Stock for which this Warrant may
thereafter be exercised shall be readjusted (subject to proportionate adjustment
for any intervening exercises of this Warrant) to the number which would then be
in effect had the adjustments made upon the issuance of such rights or warrants
been made on the basis of delivery of only the number of shares of Common Stock
actually delivered. In the event that such rights or warrants are not so issued,
the Purchase Price shall again be adjusted to be the Purchase Price which would
then be in effect if such record date had not been fixed and the number of
shares of Common Stock for which this Warrant may thereafter be exercised shall
again be adjusted

                                      -16-
<PAGE>
(subject to proportionate adjustment for any intervening exercises of this
Warrant) to be the number which would then be in effect if such record date had
not been fixed. In determining whether any rights or warrants entitle the holder
to subscribe for or purchase shares of Common Stock at less than such Current
Fair Market Value, and in determining the aggregate offering price of such
shares of Common Stock, there shall be taken into account any consideration
received for such rights or warrants, the value of such consideration, if other
than cash, to be determined by the Board of Directors.

            8. LIMITATION ON ISSUANCE AT LESS THAN CURRENT FAIR MARKET VALUE.
The Company shall not, at any time on or after the Issuance Date, issue shares
of Common Stock or Common Stock Equivalents (collectively, the "Newly Issued
Shares"), at a price below the Current Fair Market Value of the Common Stock at
the time of such issuance, unless otherwise agreed in writing by the Majority
Holders. Nothing in this Section 8 shall prohibit the following:

            (a) the issuance by the Company of shares of Common Stock or Common
Stock Equivalents pro rata to all holders of the outstanding Common Stock of the
kind and in the circumstances for which adjustments are provided in Section 6 or
7, so long as (i) any adjustment required by Section 6 or 7, as the case may be,
is made and (ii) the Company shall have given notice thereof to the Holder
pursuant to Section 14;

            (b) the issuance by the Company of Newly Issued Shares in an
offering for cash for the account of the Company that is underwritten on a firm
commitment basis and is registered under the 1933 Act;

            (c) the issuance by the Company of the Series B Shares or the Other
Warrants or shares of Common Stock upon conversion of the Series B Shares in
accordance with the terms thereof or upon exercise of this Warrant or the Other
Warrants in accordance with the terms hereof and thereof;

            (d) the issuance by the Company of shares of Common Stock upon
conversion, exercise or exchange of Common Stock Equivalents outstanding as of
the Issuance Date in accordance with their terms in effect on the Issuance Date;

            (e) the issuance by the Company of Newly Issued Shares upon grant or
exercise of options for employees, directors and consultants under the ESPP, the
Company's Amended

                                      -17-
<PAGE>
1992 Stock Option Plan, the Company's Non-Employee Directors Equity Incentive
Plan or any other stock compensation plan that has been duly adopted by the
Board of Directors and duly approved by the Company's stockholders;

            (f) the issuance by the Company for cash of Newly Issued Shares in
connection with a strategic alliance, collaboration, joint venture, partnership
or similar arrangement of the Company with another Person which strategic
alliance, collaboration, joint venture, partnership or similar arrangement
relates to the Company's business as conducted immediately prior thereto and
which Person is engaged in a business similar or related to the business of the
Company so long as (x) the price per Newly Issued Share is not less than 85
percent of the Current Fair Market Value of the common stock on the date of
issuance of such Newly Issued Shares and (y) the consideration other than cash
which the Company receives in connection with such strategic alliance,
collaboration, joint venture, partnership or similar arrangement has a value, as
determined by the Board of directors in its reasonable judgment and set forth in
a Board Resolution, at least equal to the amount by which (i) the product of the
Newly Issued Shares so issued times the Current Fair Market Value of the Common
Stock on the date such Newly issued Shares are issued exceeds (ii) the aggregate
cash consideration received by the Company for such Newly Issued Shares at the
time of issuance thereof;

            (g) the issuance by the Company of Common Stock Purchase Warrants
(A) to commercials banks or other institutional lenders incidental to the
incurrence of indebtedness to such banks or institutional lenders by the Company
or any Subsidiary which indebtedness constitutes Permitted Indebtedness and (B)
to equipment vendors or commercial leasing companies incidental to the leasing
of equipment by the Company or any Subsidiary from such vendors or commercial
leasing companies for use in the Company's or such Subsidiary's business;

            (h) the issuance by the Company of Newly Issued Shares as all or
part of the consideration payable by the Company in any acquisition of (x) the
business of another Person who, immediately prior to such acquisition, is
principally engaged in a business similar to or related to the business of the
Company and the Subsidiaries or (y) of any pharmaceutical product or the rights
to manufacture, market, and sell any pharmaceutical product and related assets,
in each such case in the preceding clauses (x) and (y) so long as such issuance
and

                                      -18-
<PAGE>
acquisition have been duly approved by the Board of Directors as set forth in a
Board Resolution; and

            (i) the issuance by the Company of Newly Issued Shares in an amount
and at a price which would not, when taken together with all prior issuances of
Newly Issued Shares issued by the Company in reliance on this clause (i), result
in an Aggregate Diluted Price Percentage that is greater than four percent.

            In case at any time on or after the Issuance Date the Company shall
issue shares of Common Stock or Common Stock Equivalents to any Subsidiary, this
Section 8 shall apply to such issuance. In case at any time on or after the
Issuance Date any Subsidiary shall sell any shares of Common Stock or Common
Stock Equivalents owned by such Subsidiary to any Person other than the Company,
such sale shall be deemed for purposes of this Section 8 to be the issuance of
such shares of Common Stock or Common Stock Equivalents by the Company and shall
be subject to the limitations provided herein.

            9. EFFECT OF RECLASSIFICATION, CONSOLIDATION, MERGER OR SALE. (a) If
any of the following events occur, namely (i) any reclassification or change of
the outstanding shares of Common Stock (other than a change in par value, or
from par value to no par value, or from no par value to par value, or as a
result of a subdivision or combination), (ii) any consolidation, merger
statutory exchange or combination of the Company with another corporation as a
result of which holders of Common Stock shall be entitled to receive stock,
securities or other property or assets (including cash) with respect to or in
exchange for such Common Stock, or (iii) any sale or conveyance of the
properties and assets of the Company as, or substantially as, an entirety to any
other Person as a result of which holders of Common Stock shall be entitled to
receive stock, securities or other property or assets (including cash) with
respect to or in exchange for such Common Stock, then the Company or the
successor or purchasing Person, as the case may be, shall execute with the
Holder a written agreement providing that (x) this Warrant shall thereafter
entitle the Holder to purchase the kind and amount of shares of stock and Other
Securities or property or assets (including cash) receivable upon such
reclassification, change, consolidation, merger, statutory exchange,
combination, sale or conveyance by the holder of a number of shares of Common
Stock issuable upon exercise of this Warrant (assuming, for such purposes, a
sufficient number of authorized shares of Common Stock available to exercise
this
<PAGE>
Warrant) immediately prior to such reclassification, change, consolidation,
merger, statutory exchange, combination, sale or conveyance assuming such holder
of Common Stock did not exercise such holder's rights of election, if any, as to
the kind or amount of securities, cash or other property receivable upon such
consolidation, merger, statutory exchange, combination, sale or conveyance
(provided that, if the kind or amount of securities, cash or other property
receivable upon such consolidation, merger, statutory exchange, sale or
conveyance is not the same for each share of Common Stock in respect of which
such rights of election shall not have been exercised ("non-electing share"),
then for the purposes of this Section 9 the kind and amount of securities, cash
or other property receivable upon such consolidation, merger, statutory
exchange, sale or conveyance for each non-electing share shall be deemed to be
the kind and amount so receivable per share by a plurality of the non-electing
shares), (y) in the case of any such successor or purchasing Person, upon such
consolidation, merger, statutory exchange, combination, sale or conveyance such
successor or purchasing Person shall be jointly and severally liable with the
Company for the performance of all of the Company's obligations under this
Warrant and the Subscription Agreement and (z) if registration or qualification
is required under the 1933 Act or applicable state law for the public resale by
the Holder of such shares of stock and Other Securities so issuable upon
exercise of this Warrant, such registration or qualification shall be completed
prior to such reclassification, change, consolidation, merger, statutory
exchange, combination or sale. Such written agreement shall provide for
adjustments which shall be as nearly equivalent as may be practicable to the
adjustments provided for in this Warrant. If, in the case of any such
reclassification, change, consolidation, merger, statutory exchange,
combination, sale or conveyance, the stock or other securities or other property
or assets receivable thereupon by a holder of shares of Common Stock includes
shares of stock, other securities, other property or assets of a Person other
than the Company or any such successor or purchasing Person, as the case may be,
in such reclassification, change, consolidation, merger, statutory exchange,
combination, sale or conveyance, then such written agreement shall also be
executed by such other Person and shall contain such additional provisions to
protect the interests of the Holder as the Board of Directors shall reasonably
consider necessary by reason of the foregoing.

            (b) The above provisions of this Section 9 shall similarly apply to
successive reclassifications, changes, consolidations, mergers, combinations,
sales and conveyances.

                                      -20-
<PAGE>
            (c) If this Section 9 applies to any event or occurrence, Section 5
shall not apply to such event or occurrence.

            10. TAX ADJUSTMENTS. The Company may make such reductions in the
Purchase Price, in addition to those required by Sections 4, 5, 6 and 7, as the
Board of Directors considers to be advisable to avoid or diminish any income tax
to holders of Common Stock or rights to purchase Common Stock resulting from any
dividend or distribution of stock (or rights to acquire stock) or from any event
treated as such for income tax purposes.

            11. MINIMUM ADJUSTMENT. (a) No adjustment in the Purchase Price (and
no related adjustment in the number of shares of Common Stock which may
thereafter be purchased upon exercise of this Warrant) shall be required unless
such adjustment would require an increase or decrease of at least 1% in the
Purchase Price; provided, however, that any adjustments which by reason of this
Section 11 are not required to be made shall be carried forward and taken into
account in any subsequent adjustment. All such calculations under this Warrant
shall be made by the Company and shall be made to the nearest cent or to the
nearest one hundredth of a share, as the case may be.

            (b) No adjustment need be made for a change in the par value of the
Common Stock or from par value to no par value or from no par value to par
value.

            12. NOTICE OF ADJUSTMENTS. Whenever the Purchase Price is adjusted
as herein provided, the Company shall promptly, but in no event later than ten
Trading Days thereafter, give a notice to the Holder setting forth the Purchase
Price and number of shares of Common Stock which may be purchased upon exercise
of this Warrant after such adjustment and setting forth a brief statement of the
facts requiring such adjustment but which such statement shall not include any
information which would be material non-public information for purposes of the
1934 Act. Failure to deliver such notice shall not affect the legality or
validity of any such adjustment.

            13. FURTHER ASSURANCES. The Company will take all action that may be
necessary or appropriate in order that the Company may validly and legally issue
fully paid and nonassessable shares of stock, free from all taxes, liens and

                                      -21-
<PAGE>
charges with respect to the issue thereof, on the exercise of all or any portion
of this Warrant from time to time outstanding.

            14. NOTICE TO HOLDER PRIOR TO CERTAIN ACTIONS. In case on or after
the Issuance Date:

            (a) the Company shall declare a dividend (or any other distribution)
on its Common Stock (other than in cash out of retained earnings); or

            (b) the Company shall authorize the granting to the holders of its
Common Stock of rights or warrants to subscribe for or purchase any share of any
class or any other rights or warrants; or

            (c) the Board of Directors shall authorize any reclassification of
the Common Stock (other than a subdivision or combination of its outstanding
Common Stock, or a change in par value, or from par value to no par value, or
from no par value to par value), or any consolidation or merger or other
business combination transaction to which the Company is a party and for which
approval of any stockholders of the Company is required, or the sale or transfer
of all or substantially all of the assets of the Company; or

            (d) there shall be pending the voluntary or involuntary dissolution,
liquidation or winding-up of the Company;

the Company shall give the Holder, as promptly as possible but in any event at
least ten Trading Days prior to the applicable date hereinafter specified, a
notice stating (x) the date on which a record is to be taken for the purpose of
such dividend, distribution or rights or warrants, or, if a record is not to be
taken, the date as of which the holders of Common Stock of record to be entitled
to such dividend, distribution or rights are to be determined, or (y) the date
on which such reclassification, consolidation, merger, other business
combination transaction, sale, transfer, dissolution, liquidation or winding-up
is expected to become effective or occur, and the date as of which it is
expected that holders of Common Stock of record who shall be entitled to
exchange their Common Stock for securities or other property deliverable upon
such reclassification, consolidation, merger, other business combination
transaction, sale, transfer, dissolution, liquidation or winding-up shall be
determined. Such notice shall

                                      -22-
<PAGE>
not include any information which would be material non-public information for
purposes of the 1934 Act. Failure to give such notice, or any defect therein,
shall not affect the legality or validity of such dividend, distribution,
reclassification, consolidation, merger, sale, transfer, dissolution,
liquidation or winding-up. In the case of any such action of which the Company
gives such notice to the Holder or is required to give such notice to the
Holder, the Holder shall be entitled to give a subscription form to exercise
this Warrant in whole or in part that is contingent on the completion of such
action.

            15. RESERVATION OF STOCK, ETC., ISSUABLE ON EXERCISE OF WARRANTS.
The Company will at all times reserve and keep available out of its authorized
but unissued shares of capital stock, solely for issuance and delivery on the
exercise of this Warrant, a sufficient number of shares of Common Stock (or
Other Securities) to effect the full exercise of this Warrant and the exercise,
conversion or exchange of any other warrant or security of the Company
exercisable for, convertible into, exchangeable for or otherwise entitling the
holder to acquire shares of Common Stock (or Other Securities), and if at any
time the number of authorized but unissued shares of Common Stock (or Other
Securities) shall not be sufficient to effect such exercise, conversion or
exchange, the Company shall take such action as may be necessary to increase its
authorized but unissued shares of Common Stock (or Other Securities) to such
number as shall be sufficient for such purposes.

            16. TRANSFER OF WARRANT. This Warrant shall inure to the benefit of
the successors to and assigns of the Holder. This Warrant and all rights
hereunder, in whole or in part, are registrable at the office or agency of the
Company referred to below by the Holder in person or by his duly authorized
attorney, upon surrender of this Warrant properly endorsed accompanied by an
assignment form in the form attached to this Warrant, or other customary form,
duly executed by the transferring Holder.

            17. REGISTER OF WARRANTS. The Company shall maintain, at the
principal office of the Company (or such other office as it may designate by
notice to the Holder), a register in which the Company shall record the name and
address of the Person in whose name this Warrant has been issued, as well as the
name and address of each successor and prior owner of such Warrant. The Company
shall be entitled to treat the Person in whose name this Warrant is so
registered as the sole and absolute owner of this Warrant for all purposes.

                                      -23-
<PAGE>
            18. EXCHANGE OF WARRANT. This Warrant is exchangeable, upon the
surrender hereof by the Holder at the office or agency of the Company referred
to in Section 16, for one or more new Warrants of like tenor representing in the
aggregate the right to subscribe for and purchase the number of shares of Common
Stock which may be subscribed for and purchased hereunder, each of such new
Warrants to represent the right to subscribe for and purchase such number of
shares as shall be designated by the Holder at the time of such surrender.

            19. REPLACEMENT OF WARRANT. On receipt by the Company of evidence
reasonably satisfactory to it of the ownership of and the loss, theft,
destruction or mutilation of this Warrant and (a) in the case of loss, theft or
destruction, of indemnity from the Holder reasonably satisfactory in form to the
Company (and without the requirement to post any bond or other security), or (b)
in the case of mutilation, upon surrender and cancellation of this Warrant, the
Company will execute and deliver to the Holder a new Warrant of like tenor
without charge to the Holder.

            20. WARRANT AGENT. The Company may, by written notice to the Holder,
appoint the transfer agent and registrar for the Common Stock as the Company's
agent for the purpose of issuing Common Stock (or Other Securities) on the
exercise of this Warrant pursuant to Section 2, and the Company may, by written
notice to the Holder, appoint an agent having an office in the United States of
America for the purpose of exchanging this Warrant pursuant to Section 18, and
replacing this Warrant pursuant to Section 19, or any of the foregoing, and
thereafter any such exchange or replacement, as the case may be, shall be made
at such office by such agent.

            21. REMEDIES. The Company stipulates that the remedies at law of the
Holder in the event of any default or threatened default by the Company in the
performance of or compliance with any of the terms of this Warrant are not and
will not be adequate, and that such terms may be specifically enforced by a
decree for the specific performance of any agreement contained herein or by an
injunction against a violation of any of the terms hereof or otherwise.

            22. NO RIGHTS OR LIABILITIES AS A STOCKHOLDER. This Warrant shall
not entitle the Holder to any voting rights or other rights as a stockholder of
the Company. Nothing contained in this Warrant shall be construed as conferring
upon the Holder

                                      -24-
<PAGE>
the right to vote or to consent or to receive notice as a stockholder of the
Company on any matters or with respect to any rights whatsoever as a stockholder
of the Company. No dividends or interest shall be payable or accrued in respect
of this Warrant or the interest represented hereby or the Common Stock (or Other
Securities) purchasable hereunder until, and only to the extent that, this
Warrant shall have been exercised in accordance with its terms.

            23. NOTICES, ETC. All notices and other communications from the
Company to the Holder shall be in writing and delivered personally, by confirmed
facsimile, by a nationally recognized overnight courier service or mailed by
first class certified mail, postage prepaid, at such facsimile telephone number
or address as may have been furnished to the Company in writing by the Holder or
at the address shown for the Holder on the register of Warrants referred to in
Section 17.

            24. TRANSFER RESTRICTIONS. This Warrant has not been and is not
being registered under the provisions of the 1933 Act or any state securities
laws and this Warrant may not be transferred prior to the end of the holding
period applicable to sales hereof under Rule 144(k) under the 1933 Act unless
(1) the transferee is an "accredited investor" (as defined in Regulation D under
the 1933 Act) or a QIB in a transfer that meets the requirements of Rule 144A
and (2) the Holder shall have delivered to the Company an opinion of counsel,
reasonably satisfactory in form, scope and substance to the Company, to the
effect that this Warrant may be sold or transferred without registration under
the 1933 Act. Prior to any such transfer, such transferee shall have represented
in writing to the Company that such transferee has requested and received from
the Company all information relating to the business, properties, operations,
condition (financial or other), results of operations or prospects of the
Company deemed relevant by such transferee; that such transferee has been
afforded the opportunity to ask questions of the Company concerning the
foregoing and has had the opportunity to obtain and review the Registration
Statement and the prospectus related thereto, each as amended or supplemented to
the date of transfer to such transferee, and the reports and other information
concerning the Company which at the time of such transfer have been filed by the
Company with the SEC pursuant to the 1934 Act and which are incorporated by
reference in such prospectus as of the date of such transfer. If such transfer
is intended to assign the rights and obligations of the Holder under the
Subscription

                                      -25-
<PAGE>
Agreement, such transfer shall otherwise be made in compliance with Section
10(j) of the Subscription Agreement.

            25. RULE 144A INFORMATION REQUIREMENT. Within the period prior to
the expiration of the holding period applicable to sales hereof under Rule
144(k) under the 1933 Act (or any successor provision), the Company covenants
and agrees that it shall, during any period in which it is not subject to
Section 13 or 15(d) under the 1934 Act, make available to the Holder and the
holder of any shares of Common Stock issued upon exercise of this Warrant which
continue to be Restricted Securities in connection with any sale thereof and any
prospective purchaser of this Warrant from the Holder, the information required
pursuant to Rule 144A(d)(4) under the 1933 Act upon the request of the Holder
and it will take such further action as the Holder may reasonably request, all
to the extent required from time to time to enable the Holder to sell this
Warrant and the shares of Common Stock issued upon exercise of this Warrant
without registration under the 1933 Act within the limitation of the exemption
provided by Rule 144A, as Rule 144A may be amended from time to time. Upon the
request of the Holder, the Company will deliver to the Holder a written
statement as to whether it has complied with such requirements.

            26. LEGEND. Unless theretofore registered for resale under the 1933
Act, each certificate for shares issued upon exercise of this Warrant shall bear
the following legend:

            The securities represented by this certificate have not been
            registered under the Securities Act of 1933, as amended (the "1933
            Act"). The securities have been acquired for investment and may not
            be resold, transferred or assigned in the absence of an effective
            registration statement for the securities under the 1933 Act, or an
            opinion of counsel that registration is not required under the 1933
            Act.

            27. AMENDMENT; WAIVER. This Warrant and any terms hereof may be
changed, waived, discharged or terminated only by an instrument in writing
signed by the party against which enforcement of such change, waiver, discharge
or termination is sought.

            28. MISCELLANEOUS. This Warrant shall be construed and enforced in
accordance with and governed by the internal laws of the State of New York. The
headings, captions and footers in this Warrant are for purposes of reference
only, and

                                      -26-
<PAGE>
shall not limit or otherwise affect any of the terms hereof. The invalidity or
unenforceability of any provision hereof shall in no way affect the validity or
enforceability of any other provision.

            29. ATTORNEYS' FEES. In any litigation, arbitration or court
proceeding between the Company and the Holder relating hereto, the prevailing
party shall be entitled to attorneys' fees and expenses and all costs of
proceedings incurred in enforcing or interpreting the terms of this Warrant.

                            [Signature Page Follows]

                                      -27-
<PAGE>
            IN WITNESS WHEREOF, the Company has caused this Warrant to be duly
executed on its behalf by one of its officers thereunto duly authorized.

Dated:                                          QUESTCOR PHARMACEUTICALS, INC.

                                                By:
                                                   -----------------------------
                                                   Name:
                                                   Title:

                                      -28-
<PAGE>
                                   ASSIGNMENT

            For value ____________________________ hereby sell(s), assign(s) and
transfer(s) unto __________________ (Please insert social security or other
Taxpayer Identification Number of assignee: _____________________) the attached
original, executed Warrant to purchase __________________ share of Common Stock
of Questcor Pharmaceuticals, Inc., a California corporation (the "Company"), and
hereby irrevocably constitutes and appoints __________________ attorney to
transfer the Warrant on the books of the Company, with full power of
substitution in the premises.

            In connection with any transfer of the Warrant within the period
prior to the expiration of the holding period applicable to sales thereof under
Rule 144(k) under the 1933 Act (or any successor provision) (other than any
transfer pursuant to a registration statement that has been declared effective
under the 1933 Act), the undersigned confirms that such Warrant is being
transferred:

            [ ] To the Company or a subsidiary thereof; or

            [ ] To a QIB pursuant to and in compliance with Rule 144A; or

            [ ] To an "accredited investor" (as defined in Regulation D under
            the 1933 Act) pursuant to and in compliance with the 1933 Act; or

            [ ] Pursuant to and in compliance with Rule 144 under the 1933 Act;

and unless the box below is checked, the undersigned confirms that, to the
knowledge of the undersigned, such Warrant is not being transferred to an
"affiliate" (as defined in Rule 144 under the 1933 Act) of the Company.

            [ ] The transferee is an affiliate of the Company.

            Capitalized terms used in this Assignment and not defined in this
Assignment shall have the respective meanings provided in the Warrant.
<PAGE>
Dated:                                       NAME:
       ----------------------                      ----------------------------

                                             ----------------------------------
                                             Signature(s)
<PAGE>
                                                                       EXHIBIT 1

                              FORM OF SUBSCRIPTION

                         QUESTCOR PHARMACEUTICALS, INC.

                   (To be signed only on exercise of Warrant)

TO:         Questcor Pharmaceuticals, Inc.
            3260 Whipple Road
            Union City, California 94587

            Attention:  Chief Financial Officer

            Facsimile No.: (510) 400-0715

            1. The undersigned Holder of the attached original, executed Warrant
hereby elects to exercise its purchase right under such Warrant with respect to
      shares (the "Exercise Shares") of Common Stock, as defined in the Warrant,
of Questcor Pharmaceuticals, Inc., a California corporation (the "Company").

            2. The undersigned Holder (check one):

            -     (a) elects to pay the Aggregate Purchase Price for such shares
                  of Common Stock (i) in lawful money of the United States or by
                  the enclosed certified or official bank check payable in
                  United States dollars to the order of the Company in the
                  amount of $    , or (ii) by wire transfer of United States
                  funds to the account of the Company in the amount of $    ,
                  which transfer has been made before or simultaneously with the
                  delivery of this Form of Subscription pursuant to the
                  instructions of the Company;

                  or

            -     (b) elects to receive shares of Common Stock having a value
                  equal to the value of the Warrant calculated in accordance
                  with Section 2(b) of the Warrant.

            3. Please issue a stock certificate or certificates representing the
appropriate number of shares of Common Stock in the name of the undersigned or
in such other name(s) as is specified below:

                                      1-1
<PAGE>
            Name:
                     ---------------------------------------------------

            Address:
                     ---------------------------------------------------

            Social Security or Tax Identification Number (if any):

                      ------------------------------

Dated:
       ----------------------      --------------------------------------------
                                   (Signature must conform to name of Holder as
                                      specified on the face of the Warrant)

                                   --------------------------------------------

                                   --------------------------------------------
                                                    (Address)

                                      1-2<PAGE>
                                                                    EXHIBIT 10.1

                                                                  Execution Copy

                             SUBSCRIPTION AGREEMENT

                          DATED AS OF DECEMBER 29, 2002

                                 BY AND BETWEEN

                         QUESTCOR PHARMACEUTICALS, INC.

                                       AND

                                   [INVESTOR]

                              --------------------

                      SERIES B CONVERTIBLE PREFERRED STOCK

                                       AND

                         COMMON STOCK PURCHASE WARRANTS
<PAGE>
                         QUESTCOR PHARMACEUTICALS, INC.

                             SUBSCRIPTION AGREEMENT

                      SERIES B CONVERTIBLE PREFERRED STOCK

                                       AND

                         COMMON STOCK PURCHASE WARRANTS

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                       PAGE
                                                                                                       ----
<S>                                                                                                    <C>
1.       DEFINITIONS.                                                                                    1

2.       AGREEMENT TO SUBSCRIBE; PURCHASE PRICE.                                                        12
         (a)      Subscription.                                                                         12
         (b)      Form of Payment.                                                                      12
         (c)      Closing.                                                                              12

3.       REPRESENTATIONS, WARRANTIES, COVENANTS, ETC. OF THE BUYER.                                     13
         (a)      Acquisition for Investment.                                                           13
         (b)      Accredited Investor.                                                                  13
         (c)      Reoffers and Resales.                                                                 13
         (d)      Company Reliance.                                                                     13
         (e)      Information Provided.                                                                 14
         (f)      Absence of Approvals.                                                                 14
         (g)      Subscription Agreement.                                                               15
         (h)      Buyer Status.                                                                         15
         (i)      Absence of Reliance.                                                                  15

4.       REPRESENTATIONS, WARRANTIES, COVENANTS, ETC. OF THE COMPANY.                                   15
         (a)      Organization and Authority.                                                           15
         (b)      Qualifications.                                                                       16
         (c)      Capitalization.                                                                       16
         (d)      Concerning the Shares and the Common Stock.                                           17
         (e)      Corporate Authorization.                                                              18
         (f)      Non-contravention.                                                                    19
         (g)      Approvals, Filings, Etc.                                                              19
         (h)      Information Provided.                                                                 20
         (i)      Conduct of Business.                                                                  20
         (j)      SEC Filings.                                                                          21
         (k)      Absence of Certain Proceedings.                                                       21
</TABLE>

                                      -i-
<PAGE>
<TABLE>
<S>                                                                                                     <C>
         (l)      Liabilities.                                                                          22
         (m)      Material Losses.                                                                      22
         (n)      Absence of Certain Changes.                                                           22
         (o)      Intellectual Property.                                                                22
         (p)      Internal Accounting Controls.                                                         24
         (q)      Compliance with Law.                                                                  24
         (r)      Properties.                                                                           24
         (s)      Labor Relation.                                                                       25
         (t)      Insurance.                                                                            25
         (u)      Tax Matters.                                                                          25
         (v)      Investment Company.                                                                   25
         (w)      Absence of Brokers, Finders, Etc.                                                     25
         (x)      No Solicitation.                                                                      25
         (y)      ERISA Compliance.                                                                     26
         (z)      Absence of Rights Agreement.                                                          26
         (aa)     Distributions to Shareholders.                                                        26

5.       CERTAIN COVENANTS AND ACKNOWLEDGMENTS.                                                         27
         (a)      Transfer Restrictions.                                                                27
         (b)      Restrictive Legends.                                                                  28
         (c)      Accounting Treatment.                                                                 29
         (d)      Conversion Agent Instruction.                                                         32
         (e)      Form D.                                                                               33
         (f)      AMEX Listing; Reporting Status.                                                       33
         (g)      Use of Proceeds.                                                                      33
         (h)      State Securities Laws.                                                                34
         (i)      Limitation on Certain Actions.                                                        34
         (j)      Best Efforts.                                                                         35
         (k)      Short Sales.                                                                          35

6.       CONDITIONS TO THE COMPANY'S OBLIGATIONS TO SELL AND ISSUE.                                     35

7.       CONDITIONS TO THE BUYER'S OBLIGATIONS TO PURCHASE.                                             36

8.       REGISTRATION RIGHTS.                                                                           37
         (a)      Mandatory Registration.                                                               37
         (b)      Obligations of the Company.                                                           39
         (c)      Obligations of the Buyer and Other Investors.                                         45
         (d)      Rule 144.                                                                             46

9.       INDEMNIFICATION AND CONTRIBUTION.                                                              47
         (a)      Indemnification.                                                                      47
         (b)      Contribution.                                                                         49
         (c)      Other Rights.                                                                         50
</TABLE>

                                      -ii-
<PAGE>
<TABLE>
<S>                                                                                                     <C>
10.      MISCELLANEOUS.                                                                                 50
         (a)      Governing Law.                                                                        50
         (b)      Headings.                                                                             50
         (c)      Severability.                                                                         50
         (d)      Notices.                                                                              50
         (e)      Counterparts.                                                                         51
         (f)      Entire Agreement; Benefit.                                                            51
         (g)      Waiver.                                                                               52
         (h)      Amendment.                                                                            52
         (i)      Further Assurances.                                                                   53
         (j)      Assignment of Certain Rights and Obligations.                                         53
         (k)      Expenses.                                                                             53
         (l)      Termination.                                                                          55
         (m)      Survival.                                                                             55
         (n)      Public Statements, Press Releases, Etc.                                               56
         (o)      Construction.                                                                         56

SCHEDULES

Schedule 4(a)     List of Subsidiaries
Schedule 4(c)     Certain Antidilution Adjustments
Schedule 4(d)     Certain Notifications
Schedule 4(i)     Certain Actions
Schedule 4(l)     Certain Indebtedness
Schedule 4(r)     Mortgages, Liens, Pledges, Security Interests,
                  Encumbrances, Etc.
Schedule 4(o)     Intellectual Property
</TABLE>

ANNEXES

Annex I           Form of Certificate of Determination

Annex II          Form of Conversion Agent Instruction
Annex III         Form of Common Stock Purchase Warrant
Annex IV          Form of Irrevocable Instruction to Be Given by the Company to
                  the Transfer Agent upon Effectiveness of the Registration
                  Statement
Annex V           Form of Opinion of Latham & Watkins to Be Delivered on Closing
                  Date
Annex VI          Form of Opinion of Latham & Watkins to Be Delivered upon
                  Effectiveness of the Registration Statement
Annex VII         Form of Selling Security Holder Questionnaire
Annex VIII        Form of Press Release

                                     -iii-
<PAGE>
                             SUBSCRIPTION AGREEMENT

                  THIS SUBSCRIPTION AGREEMENT, dated as of December 29, 2002
(this "Agreement"), by and between QUESTCOR PHARMACEUTICALS, INC., a California
corporation (the "Company"), with headquarters located at 3260 Whipple Road,
Union City, California 94587, and [INVESTOR] (the "Buyer").

                              W I T N E S S E T H:

                  WHEREAS, the Company wishes to sell, and the Buyer wishes to
purchase, upon the terms and subject to the conditions of this Agreement, shares
of voting Series B Convertible Preferred Stock of the Company which will be
convertible into shares of Common Stock (such capitalized term and all other
capitalized terms used in this Agreement having the respective meanings provided
in Section 1); and

                  WHEREAS, in connection with the issuance of the Preferred
Shares, the Company is issuing to the Buyer the Warrant to purchase Common Stock
on the terms provided herein;

                  NOW THEREFORE, in consideration of the premises and the mutual
covenants contained herein and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties agree as
follows:

                  1.       DEFINITIONS.

                  (a) As used in this Agreement, the terms "Agreement," "Buyer"
and "Company" shall have the respective meanings assigned to such terms in the
introductory paragraph of this Agreement.

                  (b) All the agreements or instruments herein defined shall
mean such agreements or instruments as the same may from time to time be
supplemented or amended or the terms thereof waived or modified to the extent
permitted by, and in accordance with, the terms thereof and of this Agreement.

                  (c) The following terms shall have the following meanings
(such meanings to be equally applicable to both the singular and plural forms of
the terms defined):

                  "Additional Dividend Event" shall have the meaning to be
provided or provided in the Certificate of Determination.
<PAGE>
                  "AMEX" means the American Stock Exchange, Inc.

                  "Approved Market" means the AMEX, the Nasdaq National Market
or the New York Stock Exchange, Inc.

                  "Arrearage Interest" shall have the meaning to be provided or
provided in the Certificate of Determination.

                  "Blackout Period" means the period of up to an aggregate of 30
Trading Days in any period of 365 consecutive days, in each case commencing on
the day immediately after the date the Company notifies the Investors that they
are required, pursuant to Section 8(c)(4), to suspend offers and sales of
Registrable Securities pursuant to the Registration Statement as a result of an
event or circumstance described in Section 8(b)(5)(A), during which period, by
reason of Section 8(b)(5)(B), the Company is not required to amend the
Registration Statement or to supplement the Prospectus; provided, however, that
(1) no Blackout Period may exceed ten consecutive Trading Days in any period of
120 consecutive days and (2) no Blackout Period may commence sooner than 60 days
after the end of a prior Blackout Period.

                  "Business Day" means any day other than a Saturday, Sunday or
other day on which commercial banks in The City of New York are authorized or
required by law or executive order to remain closed.

                  "Certificate of Determination" means the Certificate of
Determination of Series B Convertible Preferred Stock in the form of ANNEX I to
this Agreement, as the same is filed with the Secretary of State of the State of
California.

                  "CGCL" means the California General Corporation Law.

                  "Claims" means any losses, claims, damages, liabilities or
expenses, including, without limitation, reasonable fees and expenses of legal
counsel (joint or several), incurred by a Person.

                  "Closing Date" means 12:00 noon, New York City time, on
January 3, 2003 or such other time as is mutually agreed between the Company and
the Buyer.

                  "Code" means the Internal Revenue Code of 1986, as amended,
and the regulations thereunder and published interpretations thereof.

                                      -2-
<PAGE>
                  "Common Shares" means the Conversion Shares and the Warrant
Shares.

                  "Common Stock" means the Common Stock, no par value, of the
Company.

                  "Common Stock Equivalent" means any warrant, option,
subscription or purchase right with respect to shares of Common Stock, any
security convertible into, exchangeable for, or otherwise entitling the holder
thereof to acquire, shares of Common Stock or any warrant, option, subscription
or purchase right with respect to any such convertible, exchangeable or other
security.

                  "Company Redemption Date" means the Business Day on which the
Preferred Shares are to be redeemed pursuant to Section 5(c), determined in
accordance with Section 5(c).

                  "Company Redemption Price" means an amount in cash equal to
the sum of (A) the product obtained by multiplying (i) the Stated Value times
(ii) 110% plus (B) an amount equal to the accrued and unpaid dividends on the
Preferred Share to be redeemed to the Company Redemption Date plus (C) an amount
equal to accrued and unpaid Arrearage Interest, if any, on dividends on such
Preferred Share to the Company Redemption Date.

                  "Conversion Agent Instruction" means the Conversion Agent
Instruction from the Company to the Transfer Agent for the benefit of, among
others, the Buyer and the Other Buyers, in the form of ANNEX II to this
Agreement.

                  "Conversion Notice" means the Notice of Conversion of Series B
Convertible Preferred Stock substantially in the form of Section 14(a) of the
Certificate of Determination.

                  "Conversion Price" shall have the meaning to be provided or
provided in the Certificate of Determination.

                  "Conversion Shares" means the shares of Common Stock issued or
issuable upon conversion of the Preferred Shares.

                  "Default Rate" shall have the meaning to be provided or
provided in the Certificate of Determination.

                  "Eligible Bank" shall have the meaning to be provided or
provided in the Certificate of Determination.

                                      -3-
<PAGE>
                  "Encumbrances" means all mortgages, deeds of trust, claims,
security interests, liens, pledges, leases, subleases, charges, escrows,
options, proxies, rights of occupancy, rights of first refusal, preemptive
rights, covenants, conditional limitations, hypothecations, prior assignments,
easements, title retention agreements, indentures, security agreements or any
other encumbrances of any kind.

                  "ERISA" means the Employee Retirement Income Security Act of
1974, as amended, and the regulations thereunder and published interpretations
thereof.

                  "ESPP" means the Company's Employee Stock Purchase Plan as in
effect on the date of this Agreement.

                  "Event Period" means (x) an Optional Redemption Event shall
have occurred with respect to which the Buyer shall be entitled to exercise
redemption rights under Section 11 of the Certificate of Determination or with
respect to which the Buyer shall have exercised such rights and the Company
shall not have paid, or deposited in accordance with Section 15(c) of the
Certificate of Determination, the Optional Redemption Price or (y) an Additional
Dividend Event, or an event which, with notice or passage of time, or both,
would become an Additional Dividend Event, shall have occurred and be
continuing.

                  "Finder" means Brighton Capital, Ltd.

                  "GAAP" means United States generally accepted accounting
principles.

                  "Indebtedness" shall have the meaning to be provided or
provided in the Certificate of Determination.

                  "Indemnified Party" means the Company, each of its directors,
each of its officers who signs the Registration Statement, each Person, if any,
who controls the Company within the meaning of the 1933 Act or the 1934 Act, any
underwriter and any other stockholder offering or selling securities pursuant to
the Registration Statement or any of its directors or officers or any Person who
controls such underwriter or stockholder within the meaning of the 1933 Act or
the 1934 Act.

                  "Indemnified Person" means the Buyer and each other Investor
who beneficially owns or holds Registrable Securities included in the
Registration Statement and each other Investor

                                      -4-
<PAGE>
who offers or sells Registrable Securities included in the Registration
Statement in the manner permitted under this Agreement, the directors, if any,
of the Buyer or such Investor, the officers (or persons performing similar
functions), if any, of the Buyer and any such Investor, each Person, if any, who
controls the Buyer or any such Investor within the meaning of the 1933 Act or
the 1934 Act, any underwriter (as defined in the 1933 Act) acting on behalf of
an Investor who participates in the offering of Registrable Securities of such
Investor in accordance with the plan of distribution contained in the
Prospectus, the directors, if any, of such underwriter and the officers, if any,
of such underwriter, and each Person, if any, who controls any such underwriter
within the meaning of the 1933 Act or the 1934 Act.

                  "Inspector" means any attorney, accountant or other agent
retained by an Investor for the purposes provided in Section 8(b)(9).

                  "Intellectual Property" means all franchises, patents,
trademarks, service marks, tradenames (whether registered or unregistered),
copyrights, corporate names, licenses, trade secrets, proprietary software or
hardware, proprietary technology, technical information, discoveries, designs
and other proprietary rights, whether or not patentable, and confidential
information (including, without limitation, know-how, processes and technology)
used in the conduct of the business of the Company or any Subsidiary, or in
which the Company or any Subsidiary has an interest.

                  "Investor" means the Buyer and any permitted transferee or
assignee who agrees to become bound by the provisions of Sections 5(a), 5(b),
5(c), 8, 9, and 10.

                  "Letter Agreement" means the letter agreement, dated as of the
date of this Agreement, between the Company and the Buyer and the Other Buyers.

                  "Majority Holders" shall have the meaning to be provided or
provided in the Certificate of Determination.

                  "Margin Stock" shall have the meaning provided in Regulation G
of the Board of Governors of the Federal Reserve System (12 C.F.R. Part 207).

                  "1934 Act" means the Securities Exchange Act of 1934, as
amended, or any successor statute.

                                      -5-
<PAGE>
                  "1933 Act" means the Securities Act of 1933, as amended, or
any successor statute.

                  "Optional Redemption Event" shall have the meaning to be
provided or provided in the Certificate of Determination.

                  "Optional Redemption Price" shall have the meaning to be
provided or provided in the Certificate of Determination.

                  "Other Buyers" means each of the several Persons who have
agreed to purchase shares of Preferred Stock pursuant to the Other Subscription
Agreements.

                  "Other Preferred Shares" means the shares of Preferred Stock
to be purchased or purchased by the Other Buyers pursuant to the Other
Subscription Agreements.

                  "Other Subscription Agreements" means the several Subscription
Agreements, dated as of the date hereof, by and between the Company and the
several buyers named therein relating to the sale and purchase of shares of
Preferred Stock.

                  "Other Warrants" means the Common Stock Purchase Warrants of
the Company to be purchased or purchased by the Other Buyers pursuant to the
Other Subscription Agreements.

                  "Permitted Indebtedness" shall have the meaning to be provided
or provided in the Certificate of Determination.

                  "Person" means any natural person, corporation, partnership,
limited liability company, trust, incorporated organization, unincorporated
association, or similar entity or any government, governmental agency or
political subdivision.

                  "Preferred Shares" means the shares of Preferred Stock to be
purchased by the Buyer pursuant to this Agreement, as set forth on the signature
page of this Agreement.

                  "Preferred Stock" shall mean the Series B Convertible
Preferred Stock, no par value, of the Company.

                  "Prospectus" means the prospectus forming part of the
Registration Statement at the time the Registration Statement is declared
effective and any amendment or supplement thereto, including any documents or
information incorporated therein by reference.

                                      -6-
<PAGE>
                  "Purchase Price" means the aggregate purchase price for the
Preferred Shares set forth on the signature page of this Agreement.

                  "QIB" means a "qualified institutional buyer" as defined in
Rule 144A.

                  "Questionnaire" means the Selling Security Holder
Questionnaire in the form attached hereto as EXHIBIT VII and completed by the
Buyer and furnished to the Company in connection with this Agreement.

                  "Record" shall mean all pertinent financial and other records,
pertinent corporate documents and properties of the Company and its Subsidiaries
subject to inspection for the purposes provided in Section 8(b)(9).

                  "register," "registered," and "registration" refer to a
registration effected by preparing and filing with the SEC of a Registration
Statement or Statements in compliance with the 1933 Act and pursuant to Rule
415, and the declaration or ordering of effectiveness of such Registration
Statement by the SEC.

                  "Registrable Securities" means (1) the Common Shares, (2) if
the Common Stock is changed, converted or exchanged by the Company or its
successor, as the case may be, into any other stock or other securities on or
after the date the Certificate of Determination is filed with the Secretary of
State of the State of California, such other stock or other securities which are
issued or issuable in respect of or in lieu of the Common Shares and (3) if any
other securities are issued to holders of the Common Stock (or such other shares
or other securities into which or for which the Common Stock is so changed,
converted or exchanged as described in the immediately preceding clause (2))
upon any reclassification, share combination, share subdivision, share dividend,
merger, consolidation or similar transaction or event, such other securities
which are issued or issuable in respect of or in lieu of the Common Shares.

                  "Registration Default Date" means the date which is 90 days
following the Closing Date; provided, however, if the Registration Statement is
subject to review by the SEC staff the Registration Default Date shall be the
date which is 120 days following the Closing Date.

                                      -7-
<PAGE>
                  "Registration Default Period" means the period following the
Registration Default Date during which any Registration Event occurs and is
continuing.

                  "Registration Event" means the occurrence of any of the
following events:

                  (i) the Company fails to file with the SEC the Registration
         Statement on or before the date by which the Company is required to
         file the Registration Statement pursuant to Section 8(a)(1),

                  (ii) the Registration Statement covering Registrable
         Securities is not declared effective by the SEC within 90 days
         following the Closing Date; provided, however, that if the Registration
         Statement is subject to review by the SEC staff, such effective date
         shall be within 120 days following the Closing Date,

                  (iii) after the SEC Effective Date, sales cannot be made
         pursuant to the Registration Statement for any reason (including
         without limitation by reason of a stop order, or the Company's failure
         to update the Registration Statement) but except as excused pursuant to
         Section 8(b)(5),

                  (iv) the Common Stock generally or the Registrable Securities
         specifically are not listed or included for quotation on an Approved
         Market, or trading of the Common Stock is suspended or halted on the
         Approved Market which at the time constitutes the principal market for
         the Common Stock, or

                  (v) the Company fails, refuses or is otherwise unable timely
         to issue Common Shares upon conversion of the Preferred Shares or
         Warrant Shares upon exercise of the Warrant in accordance with the
         terms of the Preferred Shares and the Warrant, or certificates therefor
         as required under the Transaction Documents or the Company fails,
         refuses or is otherwise unable timely to transfer any Common Shares as
         and when required by the Transaction Documents.

         "Registration Period" means the period from the SEC Effective Date to
the earliest of

                                      -8-
<PAGE>
                  (i) the date which is four years after the Closing Date,

                  (ii) if the Warrant has been fully exercised, such date after
         which each Investor may sell all of its Registrable Securities without
         registration under the 1933 Act pursuant to Rule 144, free of any
         limitation on the volume of such securities which may be sold in any
         period or on the manner of sale, and

                  (iii) the date on which the Investors no longer own or have
         any right to acquire any Registrable Securities.

                  "Registration Statement" means a registration statement on
Form S-3 of the Company under the 1933 Act, including any amendment thereto,
which names the Investors as selling stockholders (including any documents or
information incorporated therein by reference, whether before or after the SEC
Effective Date).

                  "Regulation D" means Regulation D under the 1933 Act.

                  "Required Information" means, with respect to any Investor,
all information regarding such Investor, the Registrable Securities held by such
Investor or which such Investor has the right to acquire and the intended method
of disposition of the Registrable Securities held by such Investor or which such
Investor has the right to acquire as shall be required by the 1933 Act to effect
the registration of the resale by such Investor of such Registrable Securities.

                  "Rule 415" means Rule 415 under the 1933 Act or any successor
rule providing for offering securities on a delayed or continuous basis.

                  "Rule 144" means Rule 144 under the 1933 Act or any other
similar rule or regulation of the SEC that may at any time provide a "safe
harbor" exemption from registration under the 1933 Act so as to permit a holder
of securities to sell such securities to the public without registration under
the 1933 Act.

                  "Rule 144A" means Rule 144A under the 1933 Act or any
successor rule thereto.

                  "SEC" means the Securities and Exchange Commission.

                                      -9-
<PAGE>
                  "SEC Effective Date" means the date the Registration Statement
is declared effective by the SEC.

                  "SEC Filing Date" means the date the Registration Statement is
first filed with the SEC pursuant to Section 8.

                  "SEC Reports" means the Company's (1) Annual Report on Form
10-K for the fiscal year ended December 31, 2001, (2) Quarterly Reports on Form
10-Q for the quarters ended March 31, 2002, June 30, 2002 and September 30, 2002
and (3) the Company's definitive proxy statement for its 2002 Annual Meeting of
Stockholders, in each case as filed with the SEC and including the information
and documents (other than exhibits) incorporated therein by reference.

                  "Securities" means the Shares and the Warrant.

                  "Series A Preferred Stock" means the Series A Preferred Stock,
no par value, of the Company.

                  "Shares" means the Preferred Shares and the Common Shares.

                  "Short Sale" shall have the meaning provided in Rule 3b-3
under the 1934 Act, as in effect on the date of this Agreement.

                  "Stated Value" shall have the meaning to be provided or
provided in the Certificate of Determination.

                  "Subscription Form" means the Subscription Form relating to
the Warrant.

                  "Subsidiary" means any corporation or other entity of which a
majority of the capital stock or other ownership interests having ordinary
voting power to elect a majority of the board of directors or other persons
performing similar functions are at the time directly or indirectly owned by the
Company.

                  "Trading Day" shall have the meaning to be provided or
provided in the Certificate of Determination.

                  "Transaction Documents" means, individually or collectively,
this Agreement, the Securities, the Certificate of Determination, the Conversion
Agent Instruction, the Letter

                                      -10-
<PAGE>
Agreement and the other agreements, instruments and documents contemplated
hereby and thereby.

                  "Transfer Agent" means Computershare Trust Company, Inc., or
any successor thereof selected by the Company and reasonably acceptable to the
Majority Holders, serving as transfer agent and registrar for the Common Stock,
conversion agent for the Preferred Stock and exercise agent for the Warrant.

                  "2001 10-K" means the Company's Annual Report on Form 10-K for
the fiscal year ended December 31, 2001.

                  "Violation" means

                  (i) any untrue statement or alleged untrue statement of a
         material fact contained in the Registration Statement or any
         post-effective amendment thereof or the omission or alleged omission to
         state therein a material fact required to be stated therein or
         necessary to make the statements therein not misleading,

                  (ii) any untrue statement or alleged untrue statement of a
         material fact contained in the Prospectus (as amended or supplemented,
         if the Company files any amendment thereof or supplement thereto with
         the SEC) or the omission or alleged omission to state therein any
         material fact necessary to make the statements made therein, in light
         of the circumstances under which the statements therein were made, not
         misleading,

                  (iii) any violation or alleged violation by the Company of the
         1933 Act, the 1934 Act, any state securities law or any rule or
         regulation under the 1933 Act, the 1934 Act or any state securities
         law, or

                  (iv) any breach or alleged breach by any Person other than the
         Buyer of any representation, warranty, covenant, agreement or other
         term of any of the Transaction Documents.

                  "Warrant" means the Common Stock Purchase Warrant in the form
of ANNEX III to this Agreement.

                  "Warrant Shares" means the shares of Common Stock issuable or
issued upon exercise of the Warrant.

                                      -11-
<PAGE>
                  2.       AGREEMENT TO SUBSCRIBE; PURCHASE PRICE.

                  (A) SUBSCRIPTION. Upon the terms and subject to the conditions
of this Agreement, the Buyer hereby agrees to purchase from the Company, and the
Company hereby agrees to sell to the Buyer, on the Closing Date, the number of
Preferred Shares set forth on the signature page of this Agreement, having the
terms and conditions as set forth in the Certificate of Determination in the
form of ANNEX I to this Agreement, at the price per share and for the Purchase
Price set forth on the signature page of this Agreement. The Purchase Price
shall be payable in United States Dollars. In connection with the purchase and
sale of the Preferred Shares, the Company will issue to the Buyer the Warrant
initially entitling the holder to purchase the number of shares of Common Stock
set forth on the signature page of this Agreement.

                  (B) FORM OF PAYMENT. Payment by the Buyer of the Purchase
Price to the Company on the Closing Date shall be made by wire transfer of
immediately available funds to:

                  Cupertino National Bank
                  3 Palo Alto Square, Suite 150
                  Palo Alto, California 94306

                  ABA No.:  121141152

                  For credit to account No.: 3086712
                  For credit to the account of Questcor Pharmaceuticals, Inc.

                  Reference:  [Investor]

                  (C) CLOSING. The issuance and sale of the Preferred Shares and
the issuance of the Warrant shall occur on the Closing Date at the Law Offices
of Brian W Pusch, Penthouse Suite, 29 West 57th Street, New York, New York. At
the closing, upon the terms and subject to the conditions of this Agreement, (1)
the Company shall issue and deliver to the Buyer the Preferred Shares and the
Warrant, registered in the name of the Buyer or its nominee, against payment by
the Buyer to the Company of an amount equal to the Purchase Price, and (2) the
Buyer shall pay to the Company an amount equal to the Purchase Price, against
delivery by the Company to the Buyer of the Preferred Shares and the Warrant.

                                      -12-
<PAGE>
                  3. REPRESENTATIONS, WARRANTIES, COVENANTS, ETC. OF THE BUYER.

                  The Buyer represents and warrants to, and covenants and agrees
with, the Company as follows:

                  (A) ACQUISITION FOR INVESTMENT. The Buyer is purchasing the
Preferred Shares and acquiring the Warrant and will acquire the Common Shares
issued upon conversion of the Preferred Shares prior to the second anniversary
of the Closing Date or issued upon each exercise of the Warrant prior to the
second anniversary of the Closing Date or acquired upon exercise of the Warrant
by payment for the Warrant Shares in cash at any time for its own account for
investment and not with a view towards the public sale or distribution thereof
within the meaning of the 1933 Act; the Buyer will acquire any Common Shares
issued to the Buyer prior to the SEC Effective Date for its own account for
investment and not with a view towards the public sale or distribution thereof
within the meaning of the 1933 Act prior to the SEC Effective Date.

                  (B) ACCREDITED INVESTOR. The Buyer is an "accredited investor"
as that term is defined in Rule 501 of Regulation D by reason of Rule 501(a)(3)
thereof;

                  (C) REOFFERS AND RESALES.

  The Buyer will not, directly or indirectly, offer, sell, transfer or otherwise
dispose of (or solicit any offers to buy, purchase or otherwise acquire) any of
the Securities unless registered under the 1933 Act, pursuant to an exemption
from registration under the 1933 Act or in a transaction not requiring
registration under the 1933 Act;

                  (D) COMPANY RELIANCE. The Buyer understands that (1) the
Preferred Shares are being offered and sold to the Buyer, (2) the Warrant is
being offered and issued to the Buyer, (3) upon conversion of the Preferred
Shares prior to the second anniversary of the Closing Date, the Conversion
Shares issued upon such conversion will be issued to the Buyer and (4) upon
exercise of the Warrant at any time prior to the second anniversary of the
Closing Date or upon cash exercise of the Warrant, the Warrant Shares issued
upon such exercise will be issued to the Buyer, in each such case in reliance on
one or more exemptions from the registration requirements of the 1933 Act,
including, without limitation, Regulation D, and exemptions from state
securities laws and that the Company is relying upon the truth and accuracy of,
and the Buyer's compliance with, the

                                      -13-
<PAGE>
representations, warranties, agreements, acknowledgments and understandings of
the Buyer set forth herein, in order to determine the availability of such
exemptions and the eligibility of the Buyer to acquire or receive an offer to
acquire the Securities;

                  (E) INFORMATION PROVIDED. The Buyer and its advisors, if any,
have requested, received and considered all information relating to the
business, properties, operations, condition (financial or other), results of
operations and prospects of the Company and the Subsidiaries and information
relating to the offer and sale of the Preferred Shares and issuance of the
Warrant, and the offer of the Common Shares deemed relevant by them (assuming
the accuracy and completeness of the SEC Reports and of the Company's responses
to the Buyer's requests); the Buyer and its advisors, if any, have been afforded
the opportunity to ask questions of the Company concerning the terms of the
offering of the Securities and the business, properties, operations, condition
(financial or other), results of operations and prospects of the Company and the
Subsidiaries and have received satisfactory answers to any such inquiries
(assuming the accuracy and completeness of the SEC Reports and the Company's
responses to the Buyer's requests); without limiting the generality of the
foregoing, the Buyer has had the opportunity to obtain and to review the SEC
Reports; in connection with its decision to purchase the Preferred Shares and to
acquire the Warrant, the Buyer has relied solely upon the SEC Reports, the
representations, warranties, covenants and agreements of the Company set forth
in this Agreement and to be contained in the other Transaction Documents, as
well as the due diligence investigation of the Company and the Subsidiaries
completed by the Buyer and its advisors, if any; the Buyer understands that its
investment in the Securities involves a high degree of risk; and the Buyer
understands that the offering of the Preferred Shares and the Warrant is being
made to the Buyer as part of an offering without any minimum or maximum amount
of the offering (subject, however, to the right of the Company at any time prior
to execution and delivery of this Agreement by the Company, in its sole
discretion, to accept or reject an offer by the Buyer to purchase the Preferred
Shares and to acquire the Warrant);

                  (F) ABSENCE OF APPROVALS. The Buyer understands that no United
States federal or state agency or any other government or governmental agency
has passed on or made any recommendation or endorsement of the Securities;

                                      -14-
<PAGE>
                  (G) SUBSCRIPTION AGREEMENT. The Buyer has all requisite power
and authority, corporate or otherwise, to execute, deliver and perform its
obligations under this Agreement and the other agreements executed or to be
executed by the Buyer in connection herewith and to consummate the transactions
contemplated hereby and thereby; and this Agreement has been duly and validly
authorized, duly executed and delivered on behalf of the Buyer and, assuming due
execution and delivery by the Company, is a valid and binding agreement of the
Buyer enforceable in accordance with its terms, except as the enforceability
hereof may be limited by bankruptcy, insolvency, reorganization, moratorium, or
other similar laws now or hereafter in effect relating to or affecting
creditors' rights generally and general principles of equity, regardless of
whether enforcement is considered in a proceeding in equity or at law;

                  (H) BUYER STATUS. The Buyer is not a "broker" or "dealer" as
those terms are defined in the 1934 Act which is required to be registered with
the SEC pursuant to Section 15 of the 1934 Act; and

                  (I) ABSENCE OF RELIANCE. The Buyer acknowledges that, other
than as expressly set forth in this Agreement and the other Transaction
Documents, neither the Company nor the Finder has made, and the Buyer has not
relied upon, any representation or warranty as to the merits of an investment in
the Preferred Shares or the income tax consequences to the Buyer of the
transactions contemplated by this Agreement.

                  4. REPRESENTATIONS, WARRANTIES, COVENANTS, ETC. OF THE
COMPANY.

                  The Company represents and warrants to, and covenants and
agrees with, the Buyer that:

                  (A) ORGANIZATION AND AUTHORITY. The Company and each
Subsidiary is a corporation duly organized, validly existing and in good
standing under the laws of the jurisdiction of its incorporation, and (i) the
Company and each Subsidiary has all requisite corporate power and authority to
own, lease and operate its properties and to carry on its business as described
in the SEC Reports and as currently conducted, and (ii) the Company has all
requisite corporate power and authority to execute, deliver and perform its
obligations under this Agreement and the other Transaction Documents being
executed and delivered by the Company in connection herewith, and to

                                      -15-
<PAGE>
consummate the transactions contemplated hereby and thereby. The Company has no
Subsidiaries other than as listed on Schedule 4(a).

                  (B) QUALIFICATIONS. The Company and each Subsidiary is duly
qualified to do business as a foreign corporation and is in good standing in all
jurisdictions where such qualification is necessary and where failure so to
qualify could have a material adverse effect on the business, properties,
operations, condition (financial or other), results of operations or prospects
of the Company and the Subsidiaries, taken as a whole.

                  (C) CAPITALIZATION. (1) The authorized capital stock of the
Company consists of (a) 75,000,000 shares of Common Stock, of which 38,676,592
shares were outstanding at the close of business on December 27, 2002 and (b)
7,500,000 shares of preferred stock, no par value, of which 2,155,715 shares
were issued and outstanding at the close of business on December 27, 2002 and
designated Series A Preferred Stock and of which 10,000 shares will be
designated as Preferred Stock and issued pursuant to this Agreement and the
Other Subscription Agreements; from December 27, 2002 to the Closing Date there
will be (x) no increase in the number of shares of Common Stock outstanding
(except for shares of Common Stock issued upon exercise of options and warrants
outstanding on the date hereof and disclosed in the SEC Reports and shares
issued under the ESPP and except for shares of Common Stock issued upon
conversion or exercise of Common Stock Equivalents outstanding as of the date
hereof and disclosed on Schedule 4(c)) and (y) no issuance of preferred stock of
the Company or securities convertible into, exchangeable for, or otherwise
entitling the holder to acquire, shares of Common Stock (except for securities
issued pursuant to the Other Subscription Agreements). The 2001 10-K discloses
as of December 31, 2001 all outstanding options or warrants for the purchase of,
or other rights to purchase or subscribe for, or securities convertible into,
exchangeable for, or otherwise entitling the holder to acquire, Common Stock or
other capital stock of the Company, or any contracts or commitments to issue or
sell Common Stock or other capital stock of the Company or any such options,
warrants, rights or other securities; and from December 31, 2001 to the date
hereof there has been, and to the Closing Date there will be, no change in the
amount or terms of any of the foregoing except as disclosed in the SEC Reports
and except for the grant of options to purchase shares of Common Stock pursuant
to the Company's stock option plans in effect on the date of this Agreement or
issuance of Common Stock under the ESPP.

                                      -16-
<PAGE>
                  (2) The Company has duly reserved from its authorized and
unissued shares of Common Stock the full number of shares required for (A) all
options, warrants, convertible securities, exchangeable securities and other
rights to acquire shares of Common Stock which are outstanding and (B) all
shares of Common Stock and options and other rights to acquire shares of Common
Stock which may be issued or granted under the stock option and similar plans
which have been adopted by the Company or any Subsidiary; and, immediately
following the closing on the Closing Date, after giving effect to any
antidilution or similar adjustment arising by reason of the issuance of the
Preferred Shares and the Other Preferred Shares and the other transactions
contemplated by this Agreement and the Other Subscription Agreements, the total
number of shares of Common Stock reserved and required to be reserved from the
authorized and unissued shares of Common Stock for purposes of all such options,
warrants, convertible securities, exchangeable securities, other rights and
stock option and similar plans (excluding the Preferred Stock, the Warrant and
the Other Warrants) will be 22,298,766. Each outstanding class or series of
securities for which any such antidilution adjustment will occur is identified
on Schedule 4(c) to this Agreement, together with the amount of such
antidilution adjustment for each such class or series. The outstanding shares of
capital stock of the Company have been duly authorized and validly issued and
are fully paid and nonassessable and all of such options, warrants and other
rights have been duly authorized by the Company. None of the holders of such
outstanding shares of capital stock is subject to personal liability solely by
reason of being such a holder. None of the outstanding shares of capital stock
or options, warrants, or rights or other securities entitling the holders to
acquire Common Stock has been issued in violation of the preemptive rights of
any security holder of the Company. The offers and sales of the outstanding
shares of capital stock of the Company and such options, warrants, rights and
other securities to acquire Common Stock were at all relevant times either
registered under the 1933 Act and applicable state securities laws or exempt
from such requirements. Except as described on Schedule 4(c), no holder of any
of the Company's securities has any rights, "demand," "piggy-back" or otherwise,
to have such securities registered by reason of the intention to file, filing or
effectiveness of the Registration Statement.

                  (D) CONCERNING THE SHARES AND THE COMMON STOCK. The Shares
have been duly authorized and the Preferred Shares, when issued and paid for in
accordance with this Agreement, and the

                                      -17-
<PAGE>
Conversion Shares, when issued upon conversion of the Preferred Shares, and the
Warrant Shares, when issued upon exercise of the Warrant, in each such case will
be duly and validly issued, fully paid and non-assessable and will not subject
the holder thereof to personal liability solely by reason of being such holder.
There are no preemptive or similar rights of any stockholder of the Company or
any other Person to acquire any of the Securities. The Company has duly reserved
10,624,732 shares of Common Stock for issuance upon conversion of the shares of
Preferred Stock and 3,399,910 shares of Common Stock for issuance upon exercise
of the Warrant and the common stock purchase warrants issuable pursuant to the
Other Subscription Agreements, and such shares shall remain so reserved, and the
Company shall from time to time reserve such additional shares of Common Stock
as shall be required to be reserved pursuant to the Certificate of Determination
and the Warrant, so long as the Preferred Stock may be converted or the Warrant
may be exercised, as the case may be. The Common Stock is listed for trading on
the AMEX and, except as described on Schedule 4(d), (1) the Company and the
Common Stock meet the criteria for continued listing and trading on the AMEX;
(2) the Company has not been notified since September 30, 2001 by the AMEX of
any failure or potential failure to meet the criteria for continued listing and
trading on the AMEX and (3) no suspension of trading in the Common Stock is in
effect. Except as described on Schedule 4(d), the Company knows of no reason
that the Common Shares will not be eligible for listing on the AMEX.

                  (E) CORPORATE AUTHORIZATION. This Agreement and the other
Transaction Documents have been duly and validly authorized by the Company. This
Agreement has been duly executed and delivered by the Company and, assuming due
execution and delivery by the Buyer, this Agreement is, and the Certificate of
Determination, when executed by the Company and filed with the Secretary of
State of the State of California, will be, and the Warrant and the Conversion
Agent Instruction, when executed and delivered by the Company, will be, valid
and binding obligations of the Company enforceable in accordance with their
respective terms, except as the enforceability hereof and thereof may be limited
by bankruptcy, insolvency, reorganization, moratorium or other similar laws now
or hereafter in effect relating to or affecting creditors' rights generally and
general principles of equity, regardless of whether enforcement is considered in
a proceeding in equity or at law.

                                      -18-
<PAGE>
                  (F) NON-CONTRAVENTION. The execution and delivery of the
Transaction Documents by the Company, the issuance of the Securities as
contemplated by the Transaction Documents and the completion by the Company of
the other transactions contemplated by the Transaction Documents do not and will
not, with or without the giving of notice or the lapse of time, or both, (i)
result in any violation of any provision of the articles of incorporation or
by-laws or similar instruments of the Company or any Subsidiary, (ii) conflict
with or result in a breach by the Company or any Subsidiary of any of the terms
or provisions of, or constitute a default under, or result in the modification
of, or result in the creation or imposition of any lien, security interest,
charge or encumbrance upon any of the properties or assets of the Company or any
Subsidiary pursuant to, any indenture, mortgage, deed of trust or other
agreement or instrument to which the Company or any Subsidiary is a party or by
which the Company or any Subsidiary or any of their respective properties or
assets are bound or affected, in any such case which would have a material
adverse effect on the business, properties, operations, condition (financial or
other), results of operations or prospects of the Company and the Subsidiaries,
taken as a whole, or the validity or enforceability of, or the ability of the
Company to perform its obligations under, the Transaction Documents, (iii)
violate or contravene any applicable law, rule or regulation or any applicable
decree, judgment or order of any court, United States federal or state
regulatory body, administrative agency or other governmental body having
jurisdiction over the Company or any Subsidiary or any of their respective
properties or assets which would have a material adverse effect on the business,
properties, operations, condition (financial or other), results of operations or
prospects of the Company and the Subsidiaries, taken as a whole, or the validity
or enforceability of, or the ability of the Company to perform its obligations
under, the Transaction Documents, or (iv) have any material adverse effect on
any permit, certification, registration, approval, consent, license or franchise
necessary for the Company or any Subsidiary to own or lease and operate any of
its properties and to conduct any of its business or the ability of the Company
or any Subsidiary to make use thereof.

                  (G) APPROVALS, FILINGS, ETC. No authorization, approval or
consent of, or filing with, any court, governmental body, regulatory agency,
self-regulatory organization, or stock exchange or market or the stockholders of
the Company is required to be obtained or made by the Company or any Subsidiary
for (1) the execution, delivery and performance by the Company

                                      -19-
<PAGE>
of the Transaction Documents, (2) the issuance and sale of the Securities as
contemplated by the Transaction Documents, and (3) the performance by the
Company of its other obligations under the Transaction Documents, other than (A)
approval by AMEX for the listing of the Common Shares on the AMEX, (B)
registration of the resale of the Common Shares under the 1933 Act as
contemplated by Section 8, (C) as may be required under applicable state
securities or "blue sky" laws, and (D) filing of one or more Forms D with
respect to the Securities as required under Regulation D.

                  (H) INFORMATION PROVIDED. The written information provided by
or on behalf of the Company to the Buyer in connection with the transactions
contemplated by this Agreement, including, without limitation, the information
referred to in Section 3(e), does not contain any untrue statement of a material
fact or omit to state any material fact necessary in order to make the
statements therein, in the light of the circumstances under which they are made,
not misleading, it being understood that for purposes of this Section 4(h), any
statement contained in such information shall be deemed to be modified or
superseded for purposes of this Section 4(h) to the extent that a statement in
any document included in such information which was prepared and furnished to
the Buyer on a later date or filed with the SEC on a later date modifies or
replaces such statement, whether or not such later prepared and furnished or
filed statement so states.

                  (I) CONDUCT OF BUSINESS. Except as set forth in the SEC
Reports or on Schedule 4(i), since December 31, 2001, neither the Company nor
any Subsidiary has (i) incurred any material obligation or liability (absolute
or contingent) other than in the ordinary course of business; (ii) canceled,
without payment in full, any material notes, loans or other obligations
receivable or other debts or claims held by it other than in the ordinary course
of business; (iii) sold, assigned, transferred, abandoned, mortgaged, pledged or
subjected to lien any of its material properties, tangible or intangible, or
rights under any material contract, permit, license, franchise or other
agreement; (iv) conducted its business in a manner materially different from its
business as conducted on December 31, 2001; (v) declared, made or paid or set
aside for payment any cash or non-cash distribution on any shares of its capital
stock; or (vi) consummated, or entered into any agreement with respect to, any
transaction or event which would constitute an Optional Redemption Event. Except
as disclosed in the SEC Reports or on Schedule 4(i), the Company and each
Subsidiary owns, possesses

                                      -20-
<PAGE>
or has obtained all governmental, administrative and third party licenses,
permits, certificates, registrations, approvals, consents and other
authorizations necessary to own or lease (as the case may be) and operate its
properties, whether tangible or intangible, and to conduct its business and
operations as currently conducted, except such licenses, permits, certificates,
registrations, approvals, consents and authorizations the failure of which to
obtain would not have a material adverse effect on the business, properties,
operations, condition (financial or other), results of operations or prospects
of the Company and the Subsidiaries, taken as a whole.

                  (J) SEC FILINGS. The Company has timely filed all reports
required to be filed under the 1934 Act and any other material reports or
documents required to be filed with the SEC since December 31, 2001. All of such
reports and documents complied, when filed, in all material respects, with all
applicable requirements of the 1933 Act and the 1934 Act. The Company meets the
requirements for the use of Form S-3 for the registration of the resale of the
Registrable Securities. Except for the Company's Current Report on Form 8-K
dated August 14, 2002, the Company has not filed any reports with the SEC under
the 1934 Act since December 31, 2001 other than the SEC Reports.

                  (K) ABSENCE OF CERTAIN PROCEEDINGS. Except as disclosed in the
SEC Reports, there is no action, suit, proceeding, inquiry or investigation
before or by any court, public board or body, or governmental agency pending or,
to the knowledge of the Company or any Subsidiary, threatened against or
affecting the Company or any Subsidiary, in any such case wherein an unfavorable
decision, ruling or finding would have a material adverse effect on the
business, properties, operations, condition (financial or other), results of
operations or prospects of the Company and the Subsidiaries, taken as a whole,
or the transactions contemplated by the Transaction Documents or which could
adversely affect the validity or enforceability of, or the authority or ability
of the Company to perform its obligations under, the Transaction Documents; the
Company does not have pending before the SEC any request for confidential
treatment of information and, to the best of the Company's knowledge, no such
request will be made by the Company prior to the SEC Effective Date; and to the
best of the Company's knowledge there is not pending or contemplated any, and
there has been no, investigation by the SEC involving the Company or any current
or former director or officer of the Company.

                                      -21-
<PAGE>
                  (L) LIABILITIES. The consolidated financial statements
included in the 2001 10-K present fairly the consolidated financial position,
consolidated results of operations and consolidated cash flows of he Company and
the Subsidiaries, at the dates and for the periods covered thereby, have been
prepared in conformity with generally accepted accounting principles applied on
a consistent basis throughout the periods covered thereby. Except as set forth
on Schedule 4(i) and as and to the extent disclosed, reflected or reserved
against in the financial statements of the Company and the notes thereto
included in the SEC Reports, neither the Company nor any Subsidiary (1) has any
liability, debt or obligation, whether accrued, absolute, contingent or
otherwise, and whether due or to become due which, individually or in the
aggregate, are material to the Company and the Subsidiaries, taken as a whole,
or (2) has incurred any liability, debt or obligation of any nature whatsoever
subsequent to December 31, 2001 which is, individually or in the aggregate,
material to the Company and the Subsidiaries, taken as a whole, other than those
incurred in the ordinary course of their respective businesses. A description of
the type and a statement of the amount of each item of Indebtedness of the
Company or any Subsidiary that will be outstanding on the Closing Date and that
will constitute Permitted Indebtedness for purposes of clause (1) of the
definition of the term Permitted Indebtedness appear on Schedule 4(l) attached
hereto.

                  (M) MATERIAL LOSSES. Since December 31, 2001, neither the
Company nor any Subsidiary has sustained any loss or interference with its
business or properties from fire, flood, hurricane, accident or other calamity,
whether or not covered by insurance, or from any labor dispute or court or
governmental action, order or decree, which loss or interference could be
material to the business, properties, operations, condition (financial or
other), results of operations or prospects of the Company and the Subsidiaries,
taken as a whole, except as disclosed in the SEC Reports.

                  (N) ABSENCE OF CERTAIN CHANGES. Since December 31, 2001, there
has been no material adverse change and no material adverse development in the
business, properties, operations, condition (financial or other), results of
operations or prospects of the Company and the Subsidiaries, taken as a whole,
except as disclosed in the SEC Reports.

                  (O) INTELLECTUAL PROPERTY. Except as set forth on Schedule
4(o) to this Agreement: (1) to the knowledge of the

                                      -22-
<PAGE>
Company, the Company holds all Intellectual Property, free and clear of all
Encumbrances and restrictions on use or transfer, whether or not recorded, and
has sole title to and ownership of or has the full, exclusive right to use, for
the life of the proprietary right all Intellectual Property; (2) the use of the
Intellectual Property by the Company or any Subsidiary does not, to the
knowledge of the Company, violate or infringe on the rights of any other Person;
(3) neither the Company nor any Subsidiary has received any notice of any
conflict between the asserted rights of others and the Company or any Subsidiary
with respect to any Intellectual Property; (4) to the knowledge of the Company
all filings and other actions necessary to acquire, maintain, register, renew
and perfect the rights of the Company and the Subsidiaries to all Intellectual
Property used by the Company or any Subsidiary in its business or in which it
has an interest have been duly made in all jurisdictions where such rights are
used by it; (5) to the knowledge of the Company, the Company and the
Subsidiaries are in compliance with all material terms and conditions of their
agreements relating to the Intellectual Property; (6) neither the Company nor
any Subsidiary is or has been a defendant in any action, suit, investigation or
proceeding relating to infringement or misappropriation by the Company or any
Subsidiary of any Intellectual Property; (7) neither the Company nor any
Subsidiary has been notified of any alleged claim of infringement or
misappropriation by the Company or any Subsidiary of any Intellectual Property;
(8) the Company has no knowledge of any claim of infringement or
misappropriation by the Company or any Subsidiary of any Intellectual Property;
(9) to the knowledge of the Company, none of the products the Company and the
Subsidiaries are researching, developing, make, have made, use, or sell,
infringes or misappropriates any Intellectual Property right of any third party;
(10) none of the trademarks and service marks used by the Company or any
Subsidiary, to the knowledge of the Company, infringes the trademark or service
mark rights of any third party; (11) to the knowledge of the Company none of the
material processes and formulae, research and development results and other
know-how relating to the Company's or the Subsidiaries' respective businesses,
the value of which to the Company or the Subsidiaries is contingent upon
maintenance of the confidentiality thereof, has been disclosed to any Person
other than Persons bound by written confidentiality agreements; and (12) to the
knowledge of the Company, the Company owns directly, or possesses adequate
rights to use, all Intellectual Property used in or relating to the business of
the Company, and none of

                                      -23-
<PAGE>
such Intellectual Property is owned, claimed or used by, or subject to any
Encumbrance of or by, any Subsidiary.

                  (P) INTERNAL ACCOUNTING CONTROLS. The Company maintains a
system of internal accounting controls for the Company and the Subsidiaries
which meets the requirements of Section 13(b)(2) of the 1934 Act in all material
respects.

                  (Q) COMPLIANCE WITH LAW. Neither the Company nor any
Subsidiary is in violation of or has any liability under any statute, law, rule,
regulation, ordinance, decision or order of any governmental agency or body or
any court, domestic or foreign, including, without limitation, those relating to
the use, operation, handling, transportation, disposal or release of hazardous
or toxic substances or wastes or relating to the protection or restoration of
the environment or human exposure to hazardous or toxic substances or wastes,
except where such violation or liability would not individually or in the
aggregate have a material adverse effect on the business, properties,
operations, condition (financial or other), results of operations or prospects
of the Company and the Subsidiaries, taken as a whole; and to the knowledge of
the Company there is no pending investigation which would reasonably be expected
to lead to such a claim.

                  (R) PROPERTIES. The Company and each Subsidiary has good title
to all property, real and personal (tangible and intangible), and other assets
owned by it which are individually or in the aggregate material to the Company
and the Subsidiaries, taken as a whole, free and clear of all security
interests, charges, mortgages, liens or other encumbrances, except such as are
described in Schedule 4(r) or in the SEC Reports or such as do not materially
interfere with the use of such property made, or proposed to be made, by the
Company or any Subsidiary. The leases, licenses or other contracts or
instruments under which the Company and each Subsidiary leases, holds or is
entitled to use any property, real or personal, which individually or in the
aggregate are material to the Company and the Subsidiaries, taken as a whole,
are valid, subsisting and enforceable with only such exceptions as do not
materially interfere with the use of such property made, or proposed to be made
by the Company or any Subsidiary. Neither the Company nor any Subsidiary has
received notice of any material violation of any applicable law, ordinance,
regulation, order or requirement relating to its owned or leased properties.
Neither the Company nor any Subsidiary has any mortgage, lien, pledge, security
interest or other charge or encumbrance on any

                                      -24-
<PAGE>
of its assets or properties except as listed in Schedule 4(r) attached hereto.

                  (S) LABOR RELATION. No material labor problem exists or, to
the knowledge of the Company or any Subsidiary, is imminent with respect to any
of the employees of the Company or any Subsidiary.

                  (T) INSURANCE. The Company and each Subsidiary maintains
insurance against loss or damage by fire or other casualty and such other
insurance, including but not limited to, product liability insurance, in such
amounts and covering such risks as the Company reasonably believes is adequate
for the conduct of its business and the value of its properties.

                  (U) TAX MATTERS. The Company and each Subsidiary has filed all
federal, state and local income and franchise tax returns required to be filed
and has paid all taxes shown by such returns to be due, and no tax deficiency
has been determined adversely to the Company or any Subsidiary which has had
(nor does the Company or any Subsidiary have any knowledge of any tax deficiency
which, if determined adversely to the Company or any Subsidiary, might have) a
material adverse effect on the business, properties, operations, condition
(financial or other), results of operations, or prospects of the Company and the
Subsidiaries, taken as a whole.

                  (V) INVESTMENT COMPANY. Neither the Company nor any Subsidiary
is an "investment company" within the meaning of such term under the Investment
Company Act of 1940, as amended, and the rules and regulations of the SEC
thereunder.

                  (W) ABSENCE OF BROKERS, FINDERS, ETC. No broker, finder, or
similar Person is entitled to any commission, fee, or other compensation by
reason of the transactions contemplated by this Agreement other than the Finder,
and the Company shall pay, and indemnify and hold harmless the Buyer from, any
claim made against the Buyer by the Finder or any other Person for any such
commission, fee or other compensation.

                  (X) NO SOLICITATION. No form of general solicitation or
general advertising was used by the Company or, to the best of its knowledge,
any other Person acting on behalf of the Company, in respect of the Securities
or in connection with the offer and sale of the Securities. Neither the Company
nor, to its knowledge, any Person acting on behalf of the Company has, either
directly or indirectly, sold or offered for sale to any

                                      -25-
<PAGE>
Person any of the Securities or, within the six months prior to the date hereof,
any other similar security of the Company except as contemplated by this
Agreement and the Other Subscription Agreements, and neither the Company nor any
Person authorized to act on its behalf will sell or offer for sale any such
security to, or solicit any offers to buy any such security from, or otherwise
approach or negotiate in respect thereof with, any Person so as thereby to cause
the issuance or sale of any of the Securities to be in violation of Section 5 of
the 1933 Act.

                  (Y) ERISA COMPLIANCE. The Company and each Subsidiary is in
compliance in all material respects with all presently applicable provisions of
ERISA; no "reportable event" (as defined in ERISA) has occurred with respect to
any "pension plan" (as defined in ERISA) for which the Company or any Subsidiary
would have any liability; neither the Company nor any Subsidiary has incurred or
expects to incur liability under (i) Title IV of ERISA with respect to
termination of, or withdrawal from, any "pension plan" or (ii) Sections 412 or
4971 of the Code; and each "pension plan" for which the Company or any
Subsidiary would have any liability that is intended to be qualified under
Section 401(a) of the Code is so qualified in all material respects and nothing
has occurred, whether by action or by failure to act, which would cause the loss
of such qualification.

                  (Z) ABSENCE OF RIGHTS AGREEMENT. The Company has not adopted a
shareholder rights plan or similar arrangement relating to accumulations of
beneficial ownership of Common Stock or a change in control of the Company.

                  (AA) DISTRIBUTIONS TO SHAREHOLDERS. For purposes of Section
500(b) of the CGCL (1) as of September 30, 2002, the sum of the assets of the
Company (exclusive of goodwill, capitalized research and development expenses
and deferred charges) were 155% of the Company's liabilities (not including
deferred taxes, deferred income and other deferred credits), and (2) as of
September 30, 2002 the current assets of the Company were 191% of the current
liabilities of the Company, in each case in the preceding clauses (1) and (2)
computed on a pro forma basis assuming: (A) the sale of 10,000 shares of
Preferred Stock pursuant to this Agreement and the Other Subscription Agreements
for an aggregate sale price of $10,000,000.00, (B) the use of an amount equal to
the amount set forth in the Letter Agreement from the proceeds of the sale of
shares of Preferred Stock to repurchase shares of Series A Preferred Stock, and
(C) the

                                      -26-
<PAGE>
redemption of 10,000 shares of Preferred Stock at a redemption price equal to
$1,030.00 per share. As of November 30, 2002, there had been no material adverse
change to the pro forma ratios set forth in clause (1) and (2) of the
immediately preceding sentence and the Company has no reason to believe there
has been any such material adverse change since November 30, 2002. As of
November 30, 2002, the Company is permitted to make a "distribution to the
Corporation's shareholders" for purposes of Section 500 of the CGCL, determined
on a pro forma basis as stated above in this Section 4(aa), in the amount of at
least $10,300,000.

                  5. CERTAIN COVENANTS AND ACKNOWLEDGMENTS.

                  (A) TRANSFER RESTRICTIONS. The Buyer acknowledges and agrees
that (1) the Preferred Shares and the Warrant have not been and are not being
registered under the provisions of the 1933 Act or any state securities laws
and, except as provided in Section 8, the Common Shares have not been and are
not being registered under the 1933 Act or any state securities laws, and that
the Preferred Shares, the Warrant and the Common Shares may not be transferred
without such registration unless the Buyer shall have delivered to the Company
an opinion of counsel, reasonably satisfactory in form, scope and substance to
the Company, to the effect that the Preferred Shares, the Warrant or the Common
Shares to be transferred may be transferred without such registration or unless
transferred in accordance with Rule 144A to a QIB; (2) no sale, assignment or
other transfer of the Preferred Shares, the Warrant or the Common Shares or any
interest therein may be made except in accordance with the terms thereof; (3)
the Common Shares are not transferable in the absence of registration under the
1933 Act and applicable state securities laws, or applicable exemptions
therefrom; (4) any sale of the Common Shares under the Registration Statement
shall be made only in compliance with the terms of this Section 5(a) and Section
8 (including, without limitation, Section 8(c)(5)); (5) any sale of the Shares
made in reliance on Rule 144 may be made only in accordance with the terms of
Rule 144 and further, if the exemption provided by Rule 144 is not available,
any resale of the Shares under circumstances in which the seller, or the Person
through whom the sale is made, may be deemed to be an underwriter, as that term
is used in the 1933 Act, may require compliance with some other exemption under
the 1933 Act or the rules and regulations of the SEC thereunder; and (6) the
Company is under no obligation to register the Shares (other than registration
of the resale of the Common Shares in accordance with Section 8)

                                      -27-
<PAGE>
under the 1933 Act or, except as provided in Sections 5(e) and 8, to comply with
the terms and conditions of any exemption thereunder. Prior to the time
particular Common Shares are eligible for resale under Rule 144(k), the Buyer
may not transfer such Common Shares in a transaction which does not constitute a
transfer thereof pursuant to the Registration Statement in accordance with the
plan of distribution set forth therein or in any supplement to the Prospectus
unless the Buyer shall have delivered to the Company an opinion of counsel,
reasonably satisfactory in form, scope and substance to the Company, that such
Common Shares may be transferred without registration under the 1933 Act.
Nothing in any of the Transaction Documents shall limit the right of a holder of
the Securities to make a bona fide pledge thereof to an institutional lender and
the Company agrees to cooperate with any Investor who seeks to effect any such
pledge by providing such information and making such confirmations as reasonably
requested.

                  (B) RESTRICTIVE LEGENDS. (1) The Buyer acknowledges and agrees
that the certificates for the Preferred Shares shall bear restrictive legends in
substantially the following form (and a stop-transfer order may be placed
against transfer of the Preferred Shares):

         These securities have not been registered under the Securities Act of
         1933, as amended (the "Act"). The issuance to the holder of these
         securities of the shares of common stock issuable upon conversion of
         these securities is not covered by a registration statement under the
         Act. These securities have been acquired, and such shares of common
         stock must be acquired, for investment and may not be sold, transferred
         or assigned unless (1) their resale is registered under the Act, (2)
         the Company has received an opinion of counsel reasonably satisfactory
         in form, scope and substance to the Company that such registration is
         not required or (3) sold, transferred or assigned to a QIB pursuant to
         Rule 144A.

                  (2) The Buyer further acknowledges and agrees that the Warrant
shall bear a restrictive legend in substantially the following form (and a
stop-transfer order may be placed against the Warrant):

         This Warrant has not been registered under the Securities Act of 1933,
         as amended (the "Act"), and may not be sold, transferred or assigned
         unless (1) the resale hereof is

                                      -28-
<PAGE>
         registered under the Act, (2) the Company has received an opinion of
         counsel reasonably satisfactory in form, scope and substance to the
         Company that such registration is not required or (3) sold, transferred
         or assigned to a QIB pursuant to Rule 144A.

                  (3) The Buyer further acknowledges and agrees that until such
time as the Common Shares have been registered for resale under the 1933 Act as
contemplated by Section 8 or are eligible for resale under Rule 144(k) under the
1933 Act, the certificates for the Common Shares may bear a restrictive legend
in substantially the following form (and a stop-transfer order may be placed
against transfer of the certificates for the Common Shares):

         The securities represented by this certificate have not been registered
         under the Securities Act of 1933, as amended (the "Act"). The
         securities have been acquired for investment and may not be resold,
         transferred or assigned in the absence of an effective registration
         statement for the securities under the Act, or an opinion of counsel
         reasonably satisfactory in form, scope and substance to the Company
         that registration is not required under the Act.

                  (4) Once the Registration Statement has been declared
effective, or particular Common Shares are eligible for resale pursuant to Rule
144(k) under the 1933 Act, thereafter (A) upon request of the Buyer the Company
will substitute certificates without restrictive legend for certificates for any
Common Shares issued prior to the SEC Effective Date or prior to the time of
such eligibility, as the case may be, which bear such restrictive legend and
remove any stop transfer restriction relating thereto promptly, but in no event
later than five Trading Days after surrender of such certificates by the Buyer
and (B) the Company shall not place any restrictive legend on certificates for
Common Shares subsequently issued or impose any stop transfer restriction
thereon.

                  (C) ACCOUNTING TREATMENT. (1) The Buyer acknowledges that the
Company seeks to account for the Preferred Stock as permanent equity to be
included in the stockholders equity portion of its balance sheet for financial
reporting purposes in accordance with GAAP, and not as redeemable preferred
stock which is considered outside permanent equity under GAAP. The Company
acknowledges that the optional redemption rights afforded to the Buyer under
Section 11 of the Certificate of Determination are a material inducement to
purchase the Preferred Shares and that the Buyer would not have entered into
this Agreement and would not purchase the

                                      -29-
<PAGE>
Preferred Shares without the protection of such optional redemption rights. The
Company believes that the terms of the Preferred Stock as set forth in the
Certificate of Determination meet the requirements for classifying the Preferred
Stock as permanent equity to be included in the stockholders equity portion of
the Company's balance sheet in accordance with GAAP and not as redeemable
preferred stock under GAAP, and the Buyer concurs in such determination. If,
notwithstanding such determination and concurrence, in connection with any
review or examination of the Company's financial statements the accounting staff
of the SEC questions or comments on the classification of the Preferred Stock
under GAAP, the Company shall (A) promptly notify the Buyer that the accounting
staff of the SEC has raised such questions or made such comments, which notice
shall be accompanied by a copy of the correspondence, if any, from the SEC staff
setting forth such questions or comments or a reasonably detailed written
statement thereof prepared by the Company, if such questions are raised or such
comments are made orally, and (B) promptly address the questions raised and
comments made by the accounting staff of the SEC and use its best efforts to
persuade the accounting staff of the SEC that the Preferred Stock should be
classified as permanent equity. The Company shall give additional such notices
to the Buyer with respect to any additional such questions raised or comments
made by the accounting staff of the SEC.

                  (2) If, at any time on or before May 31, 2003, notwithstanding
the Company's responding to the accounting staff of the SEC and use of best
efforts to persuade the accounting staff of the SEC as to the classification of
the Preferred Stock for financial reporting purposes, the Company is
unsuccessful in such efforts and the accounting staff of the SEC shall advise
the Company that it has determined that the Preferred Stock must be classified
as redeemable preferred stock and not as permanent equity to be included within
the stockholders equity portion of the Company's balance sheet pursuant to GAAP,
the Company shall notify the Buyer of such fact within five Business Days after
such determination, which notice shall be accompanied by (A) copies of all
correspondence, if any, from the SEC staff setting forth such determination or a
reasonably detailed written statement thereof prepared by the Company, if such
determination has been orally communicated to the Company, and (B) the text of
changes to the terms of the Preferred Stock which the Company proposes be made
in order to obtain the concurrence of the accounting staff of the SEC with the
classification of the

                                      -30-
<PAGE>
Preferred Shares as permanent equity to be included in the stockholders equity
portion of the Company's balance sheet in accordance with GAAP. During the
period of ten days after the Company gives such notice to the Buyer, the Company
and the Buyer shall negotiate in good faith regarding amendments to the
Transaction Documents to address such determination of the accounting staff of
the SEC, so that the Company shall be able to classify the Preferred Stock as
permanent equity to be included in the stockholders equity portion of its
balance sheet in accordance with GAAP. The Buyer shall not be obligated to agree
to any such amendment. If the Buyer and the Company are unable to agree on such
amendment to the Transaction Documents by the end of such ten-day period, the
Company shall have the right, exercisable by notice given to the Buyer not less
than 30 or more than 45 Business Days prior to the Company Redemption Date, to
redeem the Preferred Shares at the Company Redemption Price on the Company
Redemption Date. Such redemption shall otherwise be made in accordance with
Sections 9, 15(c) and 15(d) of the Certificate of Determination, which
provisions and any related definitions of terms used therein are incorporated
herein by this reference as if set forth in full at this place.

                  (3) If any Preferred Share is to be redeemed as provided in
this Section 5(c) and any notice required in connection herewith shall have been
timely given as provided herein, the Company Redemption Price of such Preferred
Share to be so redeemed and with respect to which any such notice has been given
shall become due and payable on the Company Redemption Date. On and after the
Company Redemption Date, provided that the Company shall have paid the Company
Redemption Price to the Buyer on or prior to the Company Redemption Date or
shall have deposited with an Eligible Bank on or prior to the Company Redemption
Date, to be held in trust for the Buyer, an amount sufficient to pay the Company
Redemption Price, then on the Company Redemption Date the dividends on such
Preferred Share shall cease to accrue, and such Preferred Share shall be deemed
not to be outstanding and the holder thereof shall not be entitled to any rights
of a holder except to receive payment of the Company Redemption Price and all
other rights with respect to such Preferred Share shall cease. So long as the
Company shall have so paid or deposited the full amount of the Company
Redemption Price on a timely basis, the Buyer shall not be entitled to interest
on the amount so held by such Eligible Bank and, so long as the Company shall be
in compliance in all material respects with its obligations to the Buyer
(including, without limitation, its obligations under the Transaction
Documents), the Company shall be entitled to any interest paid

                                      -31-
<PAGE>
by such Eligible Bank on the funds so deposited, subject to applicable abandoned
property and escheat laws. On presentation and surrender of the certificate for
such Preferred Share, such share shall be redeemed at the Company Redemption
Price.

                  (4) If the Company fails to pay when due or to deposit with an
Eligible Bank in accordance with Section 5(c)(3) the full amount of the Company
Redemption Price on or before the Company Redemption Date, for the number of
Preferred Shares to be redeemed on such date, then the amount thereof shall bear
interest at the Default Rate from such date until paid or so deposited in full
or until such Preferred Share is converted in accordance with the Certificate of
Determination (in which case such interest shall remain due and payable).

                  (D) CONVERSION AGENT INSTRUCTION. At such time as agreed by
the Majority Holders, but in any event within 30 days after the Closing Date,
the Company shall (1) execute and deliver to the Transfer Agent the Conversion
Agent Instruction in the form of ANNEX II to this Agreement (or in such other
form as shall have been approved in advance in writing by the Majority Holders)
and pursuant thereto irrevocably instruct the Transfer Agent to issue
certificates for the Common Shares from time to time upon conversion of the
Preferred Shares and exercise of the Warrant in such amounts as specified from
time to time to the Transfer Agent (x) in the Conversion Notices surrendered in
connection with such conversions and (y) upon exercise of the Warrant in such
amounts as specified from time to time to the Transfer Agent in the Form of
Subscription to be attached to the Warrants and surrendered in connection with
such exercises, and (2) appoint the Transfer Agent the conversion agent for the
Preferred Stock and the exercise agent for the Warrant. The certificates for the
Common Shares may bear the restrictive legend specified in Section 5(b) of this
Agreement prior to registration of the resale of the Common Shares under the
1933 Act. The Common Shares shall be registered in the name of the Buyer or its
nominee or designee and in such denominations to be specified by the Buyer in
connection with each conversion of Preferred Shares or exercise of the Warrant,
as the case may be. The Company warrants that, except as otherwise expressly
permitted by the Conversion Agent Instruction, no instruction other than (x)
such instructions referred to in this Section 5(d), (y) stop transfer
instructions to give effect to Section 5(a) hereof prior to registration of the
resale of the Common Shares under the 1933 Act and (z) the instructions required
by Section 8(b)(12) hereof will be given by the Company to the Transfer Agent
and that the Common Shares

                                      -32-
<PAGE>
shall otherwise be freely transferable on the books and records of the Company
as and to the extent provided in this Agreement. Nothing in this Section 5(d)
shall limit in any way the Buyer's obligations and agreement to comply with the
registration requirements of the 1933 Act or an exemption therefrom upon resale
of the Shares. If the Buyer provides the Company with an opinion of counsel
reasonably satisfactory in form, scope and substance to the Company that
registration of a resale by the Buyer of any of the Shares in accordance with
Section 5(a) of this Agreement is not required under the 1933 Act, the Company
shall permit the transfer of such Shares and, in the case of the Common Shares,
promptly, but in no event later than three Business Days after receipt of such
opinion, instruct the Transfer Agent to issue upon transfer one or more share
certificates in such name and in such denominations as specified by the Buyer.
Nothing in this Section 5(d) shall limit the obligations of the Company under
Section 8 of this Agreement.

                  (E) FORM D. The Company agrees to file with the SEC on a
timely basis a Form D with respect to the Securities as required to claim the
exemption provided by Rule 506 of Regulation D and to provide a copy thereof to
the Buyer promptly after such filing.

                  (F) AMEX LISTING; REPORTING STATUS. Prior to the Closing Date,
the Company shall file with the AMEX an application or other document required
by the AMEX for the listing of the Common Shares with the AMEX and shall provide
evidence of such filing to the Buyer. The Company shall use its best efforts to
obtain the listing, subject to official notice of issuance, of the Common Shares
on the AMEX prior to the Closing Date. So long as the Buyer beneficially owns
any Preferred Shares, the Warrant or any Common Shares, the Company will use its
best efforts to maintain the listing of the Common Stock on the AMEX or a
registered national securities exchange. During the Registration Period, the
Company shall timely file all reports required to be filed with the SEC pursuant
to Section 13 or 15(d) of the 1934 Act, and the Company shall not terminate its
status as an issuer required to file reports under the 1934 Act unless the 1934
Act or the rules and regulations thereunder would permit such termination.

                  (G) USE OF PROCEEDS. The Company represents and agrees that:
(1) it does not own or have any present intention of acquiring any Margin Stock;
(2) the proceeds of sale of the Preferred Shares and the Warrant Shares will be
used for the repurchase of the Series A Preferred Stock at a price not in

                                      -33-
<PAGE>
excess of an amount per share set forth in the Letter Agreement and for general
working capital purposes and in the operation of the Company's business; (3)
none of such proceeds will be used, directly or indirectly (A) to make any loan
to or investment in any other Person or (B) for the purpose, whether immediate,
incidental or ultimate, of purchasing or carrying any Margin Stock or for the
purpose of maintaining, reducing or retiring any indebtedness which was
originally incurred to purchase or carry any stock that is currently a Margin
Stock or for any other purpose which might constitute the transactions
contemplated by this Agreement a "purpose credit" within the meaning of
Regulation U of the Board of Governors of the Federal Reserve System; and (4)
neither the Company nor any agent acting on its behalf has taken or will take
any action which might cause this Agreement or the transactions contemplated
hereby to violate Regulation T, Regulation U or any other regulation of the
Board of Governors of the Federal Reserve System or to violate the 1934 Act, in
each case as in effect now or as the same may hereafter be in effect.

                  (H) STATE SECURITIES LAWS. On or before the Closing Date, the
Company shall take such action as shall be necessary to qualify, or to obtain an
exemption for, the offer and sale of the Securities to the Buyer as contemplated
by the Transaction Documents under such of the securities laws of jurisdictions
in the United States as shall be applicable thereto. In connection with the
foregoing obligations of the Company in this Section 5(h), the Company shall not
be required (1) to qualify to do business in any jurisdiction where it would not
otherwise be required to qualify but for this Section 5(h), (2) to subject
itself to general taxation in any such jurisdiction, (3) to file a general
consent to service of process in any such jurisdiction, (4) to provide any
undertakings that cause more than nominal expense or burden to the Company, or
(5) to make any change in its charter or by-laws which the Company determines to
be contrary to the best interests of the Company and its stockholders. The
Company shall furnish to the Buyer copies of all filings, applications, orders
and grants or confirmations of exemptions relating to such securities laws on or
prior to the Closing Date.

                  (I) LIMITATION ON CERTAIN ACTIONS. From the date of execution
and delivery of this Agreement by the parties hereto to the date of issuance of
the Preferred Shares and the Warrant, the Company (1) shall comply with Sections
5 and 12 of the Certificate of Determination as if the Preferred Shares were
outstanding and (2) shall not take any action which, if the

                                      -34-
<PAGE>
Preferred Shares were outstanding, would constitute an Optional Redemption Event
or, with the giving of notice or the passage of time or both, would constitute
an Optional Redemption Event.

                  (J) BEST EFFORTS. Each of the parties shall use its best
efforts timely to satisfy each of the conditions to the other party's
obligations to sell and purchase the Preferred Shares and issue and acquire the
Warrant set forth in Sections 6 or 7, as the case may be, of this Agreement on
or before the Closing Date.

                  (K) SHORT SALES. The Buyer agrees that on and after the
Closing Date until the Buyer no longer holds any Preferred Shares, the Buyer
will not engage in any Short Sales except for those which do not result in the
Buyer having a net short position; provided, however, that the limitations in
this Section 5(k) shall not be applicable during an Event Period and any Short
Sale made during an Event Period need not be "closed" or "covered" after such
Event Period; and provided further, however, that (i) any sale of shares of
Common Stock by the Buyer occurring on or within three Trading Days of any day
on which the Buyer gives a Conversion Notice or a Subscription Form to the
Company, of a number of shares of Common Stock equal to or less than the number
of shares of Common Stock which the Buyer is entitled to receive by reason of
giving such Conversion Notice or Subscription Form, shall not constitute a Short
Sale, and (ii) the Buyer may engage in any Short Sale or other hedging
transaction up to an aggregate number of shares of Common Stock at any one time
equal to (x) the number of outstanding shares of Common Stock then held by the
Buyer, plus (y) the number of shares of Common Stock then issuable upon
conversion of the Preferred Shares, exercise of the Warrant and conversion or
exercise of any Common Stock Equivalent held by the Buyer (determined without
regard to the limitations on amounts of shares issuable upon conversion of the
Preferred Shares and exercise of the Warrant based on the Buyer's beneficial
ownership). Any Short Sale or hedging transaction permitted by one of clause (1)
or clause (2) but not permitted by the other such clause shall be permissible
hereunder.

                  6. CONDITIONS TO THE COMPANY'S OBLIGATIONS TO SELL AND ISSUE.

                  The Buyer understands that the Company's obligations to sell
to the Buyer the Preferred Shares and to issue to the Buyer the Warrant on the
Closing Date are conditioned upon satisfaction of the following conditions
precedent on or before

                                      -35-
<PAGE>
the Closing Date (any or all of which may be waived by the Company in its sole
discretion):

                  (a) On the Closing Date, no legal action, suit or proceeding
shall be pending or threatened which seeks to restrain or prohibit the
transactions contemplated by this Agreement; and

                  (b) The representations and warranties of the Buyer contained
in this Agreement shall have been true and correct on the date of this Agreement
and shall be true and correct on the Closing Date as if made on and as of the
Closing Date and on or before the Closing Date the Buyer shall have performed
all covenants and agreements of the Buyer required to be performed by the Buyer
on or before the Closing Date.

                  7.       CONDITIONS TO THE BUYER'S OBLIGATIONS TO PURCHASE.

                  The Company understands that the Buyer's obligations to
purchase the Preferred Shares and to acquire the Warrant from the Company on the
Closing Date are conditioned upon satisfaction of the following conditions
precedent on or before the Closing Date (any or all of which may be waived by
the Buyer in its sole discretion):

                  (a) On the Closing Date, no legal action, suit or proceeding
shall be pending or threatened which seeks to restrain or prohibit the
transactions contemplated by this Agreement;

                  (b) The representations and warranties of the Company
contained in this Agreement and each other agreement or instrument executed and
delivered by the Company in connection with this Agreement shall have been true
and correct on the date of this Agreement and shall be true and correct on the
Closing Date as if made on the Closing Date; and on or before the Closing Date
the Company shall have performed all covenants and agreements of the Company
contained herein or therein and required to be performed by the Company on or
before the Closing Date;

                  (c) No event which, if the Preferred Shares were outstanding,
would constitute an Optional Redemption Event or, with the giving of notice or
the lapse of time, or both, would constitute an Optional Redemption Event shall
have occurred and be continuing;

                                      -36-
<PAGE>
                  (d) The Company shall have delivered to the Buyer a
certificate, dated the Closing Date, duly executed by its Chief Executive
Officer or Chief Financial Officer to the effect set forth in subparagraphs (a),
(b) and (c) of this Section 7;

                  (e) The Buyer shall have received satisfactory confirmation of
the filing with the Secretary of State of the State of California of the
Certificate of Determination, which shall continue to be filed and in full force
and effect on the Closing Date;

                  (f) Common Shares shall have been approved for listing,
subject to official notice of issuance, by the AMEX and the Buyer shall have
received written evidence of such approval by the AMEX;

                  (g) The Buyer shall have received on the Closing Date an
opinion of Latham & Watkins, counsel for the Company, dated the Closing Date,
addressed to the Buyer, in form, scope and substance reasonably satisfactory to
the Buyer, substantially in the form of ANNEX V to this Agreement;

                  (h) The Company shall have delivered to the Buyer a
certificate, dated the Closing Date, of the Secretary or the Assistant Secretary
of the Company certifying (1) the Articles of Incorporation and By-Laws of the
Company as in effect on the Closing Date, and (2) all resolutions of the Board
of Directors (and committees thereof) of the Company relating to the Transaction
Documents and the transactions contemplated hereby and (3) such other matters as
are customary and as reasonably requested by the Buyer; and

                  (i) On the Closing Date, (i) trading in securities on the New
York Stock Exchange, Inc., the AMEX or Nasdaq shall not have been suspended or
materially limited and (ii) a general moratorium on commercial banking
activities in the State of New York shall not have been declared by either
federal or state authorities.

                  8.       REGISTRATION RIGHTS.

                  (A) MANDATORY REGISTRATION. (1) The Company shall prepare
promptly and, on or prior to the date which is 30 days after the Closing Date,
file with the SEC the Registration Statement for the resale by the Buyer of a
number of Registrable Securities equal to (A) the number of shares of Common
Stock

                                      -37-
<PAGE>
equal to at least the number of Common Shares issuable to the Buyer upon
conversion of the Preferred Shares and one quarter-year of accrued and unpaid
dividends on the Preferred Shares at the rate specified in the Certificate of
Determination, determined at the Conversion Price which is applicable on the day
the Registration Statement is filed with the SEC and (B) the number of Warrant
Shares issuable upon exercise of the Warrant, and which Registration Statement
(x) shall be the same registration statement as the registration statement filed
by the Company pursuant to Section 8(a) of each of the Other Subscription
Agreements, subject to Section 8(c)(1) of this Agreement and the Other
Subscription Agreements, and (y) shall state that, in accordance with Rule 416
under the 1933 Act, such Registration Statement also covers such indeterminate
number of additional shares of Common Stock as may become issuable upon
conversion of the Preferred Shares and exercise of the Warrant to prevent
dilution resulting from stock splits, stock dividends or similar transactions.

                  (2) Prior to the SEC Effective Date the Company will not,
without the prior written consent of the Majority Holders, file or request the
acceleration of any other registration statement filed with the SEC, and during
any time subsequent to the SEC Effective Date when the Registration Statement
for any reason is not available for use by any Investor for the resale of any
Registrable Securities, the Company shall not, without the prior written consent
of the Majority Holders, file any other registration statement or any amendment
thereto with the SEC under the 1933 Act or request the acceleration of the
effectiveness of any other registration statement previously filed with the SEC,
other than (A) any registration statement on Form S-8 and (B) any registration
statement or amendment which the Company is required to file or as to which the
Company is required to request acceleration pursuant to any obligation in effect
on the date of execution and delivery of this Agreement.

                  (3) If a Registration Event occurs, then the Company will make
payments to the Buyer as partial liquidated damages for the minimum amount of
damages to the Buyer by reason thereof, and not as a penalty, at the rate of
1.5% per month of the Purchase Price paid by the Buyer pursuant to this
Agreement, for each calendar month of the Registration Default Period (pro rated
for any period less than 30 days). Each such payment shall be due and payable
within five (5) days after the end of each calendar month of the Registration
Default Period until the termination of the Registration Default Period and
within five (5) days after such termination. Such payments shall be in

                                      -38-
<PAGE>
partial compensation to the Buyer, and shall not constitute the Buyer's
exclusive remedy for such events. The Registration Default Period shall
terminate upon (u) the filing of the Registration Statement in the case of
clause (i) of the definition of "Registration Event"; (v) the SEC Effective Date
in the case of clause (ii) of the definition of "Registration Event"; (w) the
ability of the Buyer to effect sales pursuant to the Registration Statement in
the case of clause (iii) of the definition of "Registration Event"; (x) the
listing or inclusion and/or trading of the Common Stock on an Approved Market,
as the case may be, in the case of clause (iv) of the definition of
"Registration Event"; (y) the delivery of such shares or certificates in the
case of clause (v) of the definition of "Registration Event"; and (z) in the
case of the events described in clauses (ii) and (iii) of the definition of
"Registration Event", the earlier termination of the Registration Period. The
amounts payable as partial liquidated damages pursuant to this paragraph shall
be payable in lawful money of the United States. Amounts payable as partial
liquidated damages hereunder shall cease when the Buyer no longer holds the
Preferred Shares, the Warrant or Registrable Securities; provided, however, that
in the case of amounts payable in respect of the event described in clause (ii)
of the definition of the term Registration Event, the payment thereof shall be
suspended for the period from and after the date on which the Company gives
timely notice to the Buyer in accordance with Section 5(c) that the Company is
redeeming the Preferred Shares pursuant to Section 5(c) and shall not be payable
for such period if the Company makes payment of the Company Redemption Price of
the Preferred Shares in accordance with Section 5(c) on the applicable Company
Redemption Date but shall be payable for such period if the Company fails to
make payment of the Company Redemption Price of the Preferred Shares in
accordance with Section 5(c) on the applicable Company Redemption Date.

                  (B) OBLIGATIONS OF THE COMPANY. In connection with the
registration of the Registrable Securities, the Company shall:

                  (1) use its best efforts to cause the Registration Statement
to become effective as promptly as possible after the Closing Date and to keep
the Registration Statement effective pursuant to Rule 415 at all times during
the Registration Period. The Company shall submit to the SEC, within three
Business Days after the Company learns that no review of the Registration
Statement will be made by the staff of the SEC or

                                      -39-
<PAGE>
that the staff of the SEC has no further comments on the Registration Statement,
as the case may be, a request for acceleration of effectiveness of the
Registration Statement to a time and date not later than 48 hours after the
submission of such request. The Company shall notify the Investors of the
effectiveness of the Registration Statement on the SEC Effective Date. The
Company represents and warrants to the Investors that (a) the Registration
Statement (including any amendments or supplements thereto and prospectuses
contained therein), at the time it is first filed with the SEC, at the time it
is ordered effective by the SEC and at all times during which it is required to
be effective hereunder (and each such amendment and supplement at the time it is
filed with the SEC and at all times during which it is available for use in
connection with the offer and sale of the Registrable Securities) shall not
contain any untrue statement of a material fact or omit to state a material fact
required to be stated therein or necessary to make the statements therein not
misleading and (b) the Prospectus, at the time the Registration Statement is
declared effective by the SEC and at all times that the Prospectus is required
by this Agreement to be available for use by any Investor and, in accordance
with Section 8(c)(4), any Investor is entitled to sell Registrable Securities
pursuant to the Prospectus, shall not contain any untrue statement of a material
fact or omit to state a material fact required to be stated therein, or
necessary to make the statements therein, in light of the circumstances in which
they were made, not misleading;

                  (2) subject to Section 8(b)(5), prepare and file with the SEC
such amendments (including post-effective amendments) and supplements to the
Registration Statement and the Prospectus as may be necessary to keep the
Registration Statement effective, and the Prospectus current, at all times
during the Registration Period, and, during the Registration Period (other than
during any Blackout Period during which the provisions of Section 8(b)(5)(B) are
applicable), comply with the provisions of the 1933 Act applicable to the
Company in order to permit the disposition by the Investors of all Registrable
Securities covered by the Registration Statement;

                  (3) furnish to each Investor whose Registrable Securities are
included in the Registration Statement and its legal counsel (A) promptly after
the same is prepared and publicly distributed, filed with the SEC or received by
the Company, (A) five copies of the Registration Statement and any amendment
thereto and the Prospectus and each amendment or supplement thereto, (B) one
copy of each letter written by or on

                                      -40-
<PAGE>
behalf of the Company to the SEC or the staff of the SEC and each item of
correspondence from the SEC or the staff of the SEC relating to the Registration
Statement (other than any portion of any thereof which contains information for
which the Company has sought confidential treatment), each of which the Company
hereby determines to be confidential information and which each Investor hereby
agrees to keep confidential as a confidential Record in accordance with Section
8(b)(9) and (C) such number of copies of the Prospectus and all amendments and
supplements thereto and such other documents, as such Investor may reasonably
request in order to facilitate the disposition of the Registrable Securities
owned by such Investor;

                  (4) subject to Section 8(b)(5), use its commercially
reasonable efforts (A) to register and qualify the Registrable Securities
covered by the Registration Statement under the securities or blue sky laws of
such jurisdictions as any Investor who owns or holds any Registrable Securities
reasonably requests, (B) to prepare and to file in those jurisdictions such
amendments (including post-effective amendments) and supplements to such
registrations and qualifications as may be necessary to maintain the
effectiveness thereof at all times during the Registration Period and (C) to
take all other actions reasonably necessary or advisable to qualify the
Registrable Securities for sale by the Investors in such jurisdictions;
provided, however, that the Company shall not be required in connection
therewith or as a condition thereto (i) to qualify to do business in any
jurisdiction where it would not otherwise be required to qualify but for this
Section 8(b)(4), (ii) to subject itself to general taxation in any such
jurisdiction, (iii) to file a general consent to service of process in any such
jurisdiction, (iv) to provide any undertakings that cause more than nominal
expense or burden to the Company or (v) to make any change in its charter or
by-laws which the Board of Directors of the Company determines to be contrary to
the best interests of the Company and its stockholders;

                  (5) (A) as promptly as practicable after becoming aware of
such event or circumstance, notify each Investor of the occurrence of an event
or circumstance of which the Company has knowledge (x) as a result of which the
Prospectus, as then in effect, includes an untrue statement of a material fact
or omits to state a material fact required to be stated therein or necessary to
make the statements therein, in light of the circumstances under which they were
made, not misleading or (y) which requires the Company to amend or supplement
the Registration Statement due to the receipt from an Investor or

                                      -41-
<PAGE>
any other Selling Stockholder named in the Prospectus of new or additional
information about such Investor or selling stockholder or its intended plan of
distribution of its Registrable Securities or other securities caused by the
Registration Statement, as the case may be, so that the Prospectus does not
include any untrue statement of a material fact or omit to state a material fact
required to be stated therein or necessary to make the statements therein, in
light of the circumstances under which they were made, not misleading, and use
its best efforts promptly to prepare a supplement or amendment to the
Registration Statement and Prospectus to correct such untrue statement or
omission or to add any new or additional information, and deliver a number of
copies of such supplement or amendment to each Investor as such Investor may
reasonably request; and

                  (B) notwithstanding Section 8(b)(5)(A) above, if at any time
the Company notifies the Investors as contemplated by Section 8(b)(5)(A) the
Company also notifies the Investors that the event giving rise to such notice
relates to a development involving the Company which occurred subsequent to the
later of (x) the SEC Effective Date and (y) the latest date prior to such notice
on which the Company has amended or supplemented the Registration Statement,
then the Company shall not be required to use best efforts to make such
amendment during a Blackout Period; provided, however, that (A) the aggregate
number of Trading Days on which any Blackout Period is in effect may not exceed
ten consecutive Trading Days in any period of 120 consecutive days or 30 Trading
Days (whether or not consecutive) in any period of 365 consecutive days; (B) the
Company shall not be able to avail itself of its rights under this Section
8(b)(5)(B) with respect to more than three Blackout Periods in any period of 365
consecutive days; and (C) no Blackout Period may commence sooner than 60 days
after the end of an earlier Blackout Period;

                  (6) as promptly as practicable after becoming aware of such
event, notify each Investor who holds Registrable Securities being offered or
sold pursuant to the Registration Statement of the issuance by the SEC of any
stop order or other suspension of effectiveness of the Registration Statement at
the earliest possible time;

                  (7) permit the Investors who hold Registrable Securities being
included in the Registration Statement and their legal counsel, at such
Investors' sole cost and expense (except as otherwise specifically provided in
Section 10(k)) to

                                      -42-
<PAGE>
review and have a reasonable opportunity to comment on the Registration
Statement and all amendments and supplements thereto at least three Business
Days prior to their filing with the SEC and shall not file any such document to
which any Investor reasonably objects;

                  (8) make generally available to its security holders as soon
as practical, but not later than 90 days after the close of the period covered
thereby, an earning statement (in form complying with the provisions of Rule 158
under the 1933 Act) covering a 12-month period beginning not later than the
first day of the Company's fiscal quarter next following the SEC Effective Date;

                  (9) make available for inspection by any Investor and any
Inspector retained by such Investor, at such Investor's sole expense, all
Records as shall be reasonably necessary to enable such Investor to exercise its
due diligence responsibility, and cause the Company's and the Subsidiaries'
officers, directors and employees to supply all information which such Investor
or any Inspector may reasonably request for purposes of such due diligence;
provided, however, that such Investor shall hold in confidence and shall not
make any disclosure of any Record or other information which the Company
determines in good faith to be confidential, and of which determination such
Investor is so notified at the time such Investor receives such information,
unless (i) the disclosure of such Record is necessary to avoid or correct a
misstatement or omission in the Registration Statement and a reasonable time
prior to such disclosure the Investor shall have informed the Company of the
need to so correct such misstatement or omission and the Company shall have
failed to correct such misstatement of omission, (ii) the release of such Record
is ordered pursuant to a subpoena or other order from a court or governmental
body of competent jurisdiction or (iii) the information in such Record has been
made generally available to the public other than by disclosure in violation of
this or any other agreement. The Company shall not be required to disclose any
confidential information in such Records to any Inspector until and unless such
Inspector shall have entered into a confidentiality agreement with the Company
with respect thereto, substantially in the form of this Section 8(b)(9), which
agreement shall permit such Inspector to disclose Records to the Investor who
has retained such Inspector. Each Investor agrees that it shall, upon learning
that disclosure of such Records is sought in or by a court or governmental body
of competent jurisdiction or through other means, give prompt notice to the
Company and allow the Company, at the Company's

                                      -43-
<PAGE>
expense, to undertake appropriate action to prevent disclosure of, or to obtain
a protective order for, the Records deemed confidential. The Company shall hold
in confidence and shall not make any disclosure of information concerning an
Investor provided to the Company pursuant to this Agreement unless (i)
disclosure of such information is necessary to comply with federal or state
securities laws, (ii) disclosure of such information is necessary to avoid or
correct a misstatement or omission in the Registration Statement, (iii) release
of such information is ordered pursuant to a subpoena or other order from a
court or governmental body of competent jurisdiction, or (iv) such information
has been made generally available to the public other than by disclosure in
violation of this or any other agreement. The Company agrees that it shall, upon
learning that disclosure of such information concerning an Investor is sought in
or by a court or governmental body of competent jurisdiction or through other
means, give prompt notice to such Investor and allow such Investor, at such
Investor's expense, to undertake appropriate action to prevent disclosure of, or
to obtain a protective order for, such information;

                  (10) use its best efforts to cause all the Registrable
Securities covered by the Registration Statement to be listed on the AMEX or
such other principal securities market on which securities of the same class or
series issued by the Company are then listed or traded;

                  (11) provide a transfer agent and registrar, which may be a
single entity, for the Registrable Securities at all times;

                  (12) cooperate with the Investors who hold Registrable
Securities being offered pursuant to the Registration Statement to facilitate
the timely preparation and delivery of certificates (not bearing any restrictive
legends) representing Registrable Securities to be offered pursuant to the
Registration Statement and enable such certificates to be in such denominations
or amounts as the Investors may reasonably request and registered in such names
as the Investors may request; and, not later than the SEC Effective Date,
deliver (i) to the Transfer Agent (with copies to the Investors whose
Registrable Securities are included in the Registration Statement) an
instruction substantially in the form of ANNEX IV to this Agreement, and (ii)
cause legal counsel selected by the Company to deliver to the Investors whose
Registrable Securities are included in the Registration Statement and, if
required by

                                      -44-
<PAGE>
the Transfer Agent, to the Transfer Agent an opinion of counsel in the form of
ANNEX VI to this Agreement;

                  (13) during the Registration Period, refrain from bidding for
or purchasing any Common Stock or any right to purchase Common Stock or
attempting to induce any Person to purchase any such security or right if such
bid, purchase or attempt would in any way limit the right of the Investors to
sell Registrable Securities by reason of the limitations set forth in Regulation
M under the 1934 Act; and

                  (14) take all other reasonable actions necessary to expedite
and facilitate disposition by the Investors of the Registrable Securities
pursuant to the Registration Statement.

                  (C) OBLIGATIONS OF THE BUYER AND OTHER INVESTORS. In
connection with the registration of the Registrable Securities, the Investors
shall have the following obligations:

                  (1) It shall be a condition precedent to the obligations of
the Company to complete the registration pursuant to this Agreement with respect
to the Registrable Securities of a particular Investor that such Investor shall
furnish to the Company the Required Information and shall execute such documents
in connection with such registration as the Company may reasonably request.
Prior to the execution and delivery of this Agreement, the Buyer has completed
and delivered to the Company the Questionnaire, which shall be deemed to provide
all Required Information for purposes of the preparation and filing of the
Registration Statement. Promptly after a request from the Company, the Investor
will confirm or update the Required Information previously provided to the
Company by the Investor;

                  (2) Each Investor by such Investor's acceptance of the
Registrable Securities agrees to cooperate with the Company as reasonably
requested by the Company in connection with the preparation and filing of the
Registration Statement hereunder, unless such Investor has notified the Company
of such Investor's election to exclude all of such Investor's Registrable
Securities from the Registration Statement;

                  (3) Each Investor agrees that it will not effect any
disposition of the Registrable Securities except as contemplated in the
Registration Statement or as shall otherwise be in compliance with the
registration requirements of applicable securities laws and that it will
promptly notify the Company of any material changes in the information set forth
in the

                                      -45-
<PAGE>
Registration Statement regarding such Investor or its plan of distribution; each
Investor agrees (a) to notify the Company in the event that such Investor enters
into any material agreement with a broker or a dealer for the sale of the
Registrable Securities through a block trade, special offering, exchange
distribution or a purchase by a broker or dealer and (b) in connection with such
agreement, to provide to the Company in writing the information necessary to
prepare any supplemental prospectus pursuant to Rule 424(c) under the 1933 Act
which is required with respect to such transaction;

                  (4) Each Investor acknowledges that there may occasionally be
times as specified in Section 8(b)(5) or 8(b)(6) when the Company must suspend
the use of the Prospectus until such time as an amendment to the Registration
Statement has been filed by the Company and declared effective by the SEC, the
Company has prepared a supplement to the Prospectus or the Company has filed an
appropriate report with the SEC pursuant to the 1934 Act. Each Investor hereby
covenants that it will not sell any Registrable Securities pursuant to the
Prospectus during the period commencing at the time at which the Company gives
such Investor notice of the suspension of the use of the Prospectus in
accordance with Section 8(b)(5) or 8(b)(6) and ending at the time the Company
gives such Investor notice that such Investor may thereafter effect sales
pursuant to the Prospectus, or until the Company delivers to such Investor or
files with the SEC an amended or supplemented Prospectus;

                  (5) In connection with any sale of Registrable Securities
which is made by an Investor pursuant to the Registration Statement (A) if such
sale is made through a broker, such Investor shall instruct such broker to
deliver the Prospectus to the purchaser or purchasers (or the broker or brokers
therefor) in connection with such sale and shall supply copies of the Prospectus
to such broker or brokers, and (B) if such sale is made in a transaction
directly with a purchaser and not through the facilities of any securities
exchange or market, such Investor shall deliver, or cause to be delivered, the
Prospectus to such purchaser; and

                  (6) Each Investor agrees to notify the Company promptly after
the event of the completion of the sale by such Investor of all Registrable
Securities to be sold by such Investor pursuant to the Registration Statement.

                  (D) RULE 144. With a view to making available to each Investor
the benefits of Rule 144, the Company agrees:

                                      -46-
<PAGE>
                  (1) so long as any Investor owns or has the right to acquire
Registrable Securities, promptly upon request of such Investor, to furnish to
such Investor such information as may be necessary, and otherwise reasonably to
cooperate with such Investor, to permit such Investor to sell its Registrable
Securities pursuant to Rule 144 without registration; and

                  (2) if at any time the Company is not required to file such
reports with the SEC under Sections 13 or 15(d) of the 1934 Act, to use its
commercially reasonable efforts to, upon the request of an Investor, to make
publicly available other information so long as is necessary to permit
publication by brokers and dealers of quotations for the Common Stock and sales
of the Registrable Securities in accordance with Rule 15c2-11 under the 1934
Act.

                  9.       INDEMNIFICATION AND CONTRIBUTION.

                  (A) INDEMNIFICATION. (1) To the extent not prohibited by
applicable law, the Company will indemnify and hold harmless each Indemnified
Person against any Claims to which any of them may become subject under the 1933
Act, the 1934 Act or otherwise, insofar as such Claims (or actions or
proceedings, whether commenced or threatened, in respect thereof) arise out of
or are based upon any Violation or any of the transactions contemplated by the
Transaction Documents. Subject to the restrictions set forth in Section 9(a)(3)
with respect to the number of legal counsel, the Company shall reimburse each
Indemnified Person, promptly as such expenses are incurred and are due and
payable, for any reasonable legal fees or other reasonable expenses incurred by
them in connection with investigating or defending any such Claim.
Notwithstanding anything to the contrary contained herein, an Indemnified Person
shall not be entitled to indemnification under this Section 9(a)(1) for: (I) a
Claim arising out of or based upon a Violation which occurs in reliance upon and
in conformity with information relating to such Indemnified Person furnished in
writing to the Company by such Indemnified Person or an underwriter for such
Indemnified Person expressly for use in connection with the preparation of the
Registration Statement or any such amendment thereof or supplement thereto if
the Prospectus or such amendment or supplement thereto was timely made available
by the Company pursuant to Section 8(b)(3); and (II) amounts paid in settlement
of any Claim if such settlement is effected without the prior written consent of
the Company, which consent shall not be unreasonably withheld. Such

                                      -47-
<PAGE>
indemnity shall remain in full force and effect regardless of any investigation
made by or on behalf of the Indemnified Persons and shall survive the transfer
of the Registrable Securities by the Investors. The Company and the Buyer agree
that the information set forth in the Questionnaire is the only information
furnished by the Buyer in writing expressly for use in connection with the
preparation of the Registration Statement on or prior to the date hereof.

                  (2) In connection with the Registration Statement, each
Investor whose Registrable Securities are included in the Registration Statement
agrees to indemnify and hold harmless, to the same extent and in the same manner
set forth in Section 9(a)(1), each Indemnified Party against any Claim to which
any of them may become subject, under the 1933 Act, the 1934 Act or otherwise,
insofar as such Claim arises out of or is based upon any Violation, in each case
to the extent (and only to the extent) that such Violation occurs in reliance
upon and in conformity with written information furnished to the Company by such
Investor expressly for use in connection with the Registration Statement or any
amendment thereof or supplement thereto; and such Investor will reimburse any
legal or other expenses reasonably incurred by them in connection with
investigating or defending any such Claim; provided, however, that the indemnity
agreement contained in this Section 9(a)(2) shall not apply to amounts paid in
settlement of any Claim if such settlement is effected without the prior written
consent of such Investor, which consent shall not be unreasonably withheld;
provided, further, however, that each Investor shall be liable under this
Section 9(a)(2) for only that amount of all Claims in the aggregate as does not
exceed the amount by which the proceeds to such Investor as a result of the sale
of Registrable Securities pursuant to the Registration Statement exceeds the
amount paid, directly or indirectly, by such Investor for such Registrable
Securities. Such indemnity shall remain in full force and effect regardless of
any investigation made by or on behalf of such Indemnified Party and shall
survive the transfer of the Registrable Securities by the Investors.
Notwithstanding anything to the contrary contained herein, the indemnification
agreement contained in this Section 9(a)(2) with respect to any preliminary
prospectus shall not inure to the benefit of any Indemnified Party if the untrue
statement or omission of material fact contained in the preliminary prospectus
was corrected on a timely basis in the Prospectus, as then amended or
supplemented.

                                      -48-
<PAGE>
                  (3) Promptly after receipt by an Indemnified Person or
Indemnified Party under this Section 9(a) of notice of the commencement of any
action (including any governmental action), such Indemnified Person or
Indemnified Party shall, if a Claim in respect thereof is to be made against any
indemnifying party under this Section 9(a), deliver to the indemnifying party a
notice of the commencement thereof and the indemnifying party shall have the
right to participate in, and, to the extent the indemnifying party so desires,
jointly with any other indemnifying party similarly noticed, to assume control
of the defense thereof with counsel reasonably satisfactory to the Indemnified
Person or the Indemnified Party, as the case may be; provided, however, that an
Indemnified Person or Indemnified Party shall have the right to retain its own
counsel with the fees and expenses to be paid by the indemnifying party, if, in
the reasonable opinion of counsel retained by the indemnifying party, the
representation by such counsel of the Indemnified Person or Indemnified Party
and the indemnifying party would be inappropriate due to actual or potential
differing interests between such Indemnified Person or Indemnified Party and any
other party represented by such counsel in such proceeding; provided further,
however, that no indemnifying person shall be responsible for the fees and
expenses of more than one separate counsel for all Indemnified Persons or
Indemnified Parties, as the case may be, hereunder and one separate counsel in
each jurisdiction in which a Claim is pending or threatened. The failure to
deliver notice to the indemnifying party within a reasonable time of the
commencement of any such action shall not relieve such indemnifying party of any
liability to the Indemnified Person or Indemnified Party under this Section
9(a), except to the extent that the indemnifying party is prejudiced in its
ability to defend such action. The indemnification required by this Section 9(a)
shall be made by periodic payments of the amount thereof during the course of
the investigation or defense, as such expense, loss, damage or liability is
incurred and is due and payable.

                  (B) CONTRIBUTION. To the extent any indemnification by an
indemnifying party as set forth in Section 9(a) above is applicable by its terms
but is prohibited or limited by law, the indemnifying party agrees to make the
maximum contribution with respect to any amounts for which it would otherwise be
liable under Section 9(a) to the fullest extent permitted by law. In determining
the amount of contribution to which the respective parties are entitled, there
shall be considered the relative fault of each party, the parties' relative
knowledge of and access to information concerning the matter with respect to

                                      -49-
<PAGE>
which the Claim was asserted, the opportunity to correct and prevent any
statement or omission and any other equitable considerations appropriate under
the circumstances; provided, however, that (a) no contribution shall be made
under circumstances where the maker would not have been liable for
indemnification under the fault standards set forth in Section 9(a), (b) no
Person guilty of fraudulent misrepresentation (within the meaning of Section
11(f) of the 1933 Act) shall be entitled to contribution from any other Person
who was not guilty of such fraudulent misrepresentation and (c) the contribution
by any Investor in respect of all Claims in the aggregate shall be limited to
the amount by which the proceeds received by such Investor from the sale of such
Registrable Securities exceeds the amount paid, directly or indirectly, by such
Investor for such Registrable Securities.

                  (C) OTHER RIGHTS. The indemnification and contribution
provided in this Section shall be in addition to any other rights and remedies
available at law or in equity.

                  10. MISCELLANEOUS.

                  (A) GOVERNING LAW. This Agreement shall be governed by and
interpreted in accordance with the laws of the State of New York.

                  (B) HEADINGS. The headings, captions and footers of this
Agreement are for convenience of reference and shall not form part of, or affect
the interpretation of, this Agreement.

                  (C) SEVERABILITY. If any provision of this Agreement shall be
invalid or unenforceable in any jurisdiction, such invalidity or
unenforceability shall not affect the validity or enforceability of the
remainder of this Agreement or the validity or enforceability of this Agreement
in any other jurisdiction.

                  (D) NOTICES. Any notices required or permitted to be given
under the terms of this Agreement shall be in writing and shall be sent by mail,
personal delivery, by telephone line facsimile transmission or courier and shall
be effective five days after being placed in the mail, if mailed, or upon
receipt, if delivered personally, by telephone line facsimile transmission or by
courier, in each case addressed to a party at such party's address (or telephone
line facsimile transmission number) shown in the introductory paragraph or on
the signature page of this Agreement or such other address (or telephone line

                                      -50-
<PAGE>
facsimile transmission number) as a party shall have provided by notice to the
other party in accordance with this provision. In the case of any notice to the
Company, such notice shall be addressed to the Company at its address shown in
the introductory paragraph of this Agreement, Attention: Chief Financial Officer
(telephone line facsimile transmission number (510) 400-0799), and a copy shall
also be given to: Latham & Watkins, 701 B Street, Suite 2100, San Diego,
California 92101, Attention: David A. Hahn, Esq. (telephone line facsimile
transmission number (619) 696-7419, and in the case of any notice to the Buyer,
a copy shall be given to: Law Offices of Brian W Pusch, Penthouse Suite, 29 West
57th Street, New York, New York 10019 (telephone line facsimile transmission
number (212) 980-7055. The Buyer hereby designates as its address for any notice
required or permitted to be given to the Buyer pursuant to the Certificate of
Determination the address shown on the signature page of this Agreement until
the Buyer shall designate another address for such purpose.

                  (E) COUNTERPARTS. This Agreement may be executed in
counterparts and by the parties hereto on separate counterparts, each of which
shall be deemed an original and all of which together shall constitute one and
the same instrument. A telephone line facsimile transmission of this Agreement
bearing a signature on behalf of a party hereto shall be legal and binding on
such party. Although this Agreement is dated as of the date first set forth
above, the actual date of execution and delivery of this Agreement by each party
is the date set forth below such party's signature on the signature page hereof.
Any reference in this Agreement or in any of the documents executed and
delivered by the parties hereto in connection herewith to (1) the date of
execution and delivery of this Agreement by the Buyer shall be deemed a
reference to the date set forth below the Buyer's signature on the signature
page hereof, (2) the date of execution and delivery of this Agreement by the
Company shall be deemed a reference to the date set forth below the Company's
signature on the signature page hereof and (3) the date of execution and
delivery of this Agreement, or the date of execution and delivery of this
Agreement by the Buyer and the Company, shall be deemed a reference to the later
of the dates set forth below the signatures of the parties on the signature page
hereof.

                  (F) ENTIRE AGREEMENT; BENEFIT. This Agreement, including the
Annexes and Schedules hereto, and the Letter Agreement constitute the entire
agreement between the parties hereto with respect to the subject matter hereof.
There are no

                                      -51-
<PAGE>
restrictions, promises, warranties, or undertakings, other than those set forth
or referred to herein and therein. This Agreement, including the Annexes and
Schedules hereto, and the Letter Agreement supersede all prior agreements and
understandings, whether written or oral, between the parties hereto with respect
to the subject matter hereof. This Agreement and the terms and provisions hereof
are for the sole benefit of only the Company, the Buyer and their respective
successors and permitted assigns.

                  (G) WAIVER. Failure of any party to exercise any right or
remedy under this Agreement or otherwise, or delay by a party in exercising such
right or remedy, or any course of dealing between the parties, shall not operate
as a waiver thereof or an amendment hereof, nor shall any single or partial
exercise of any such right or power, or any abandonment or discontinuance of
steps to enforce such a right or power, preclude any other or further exercise
thereof or exercise of any other right or power.

                  (H) AMENDMENT. (1) No amendment, modification, waiver,
discharge or termination of any provision of this Agreement at or prior to the
closing on the Closing Date nor consent to any departure by the Buyer or the
Company therefrom at or prior to the closing on the Closing Date shall in any
event be effective unless the same shall be in writing and signed by the party
to be charged with enforcement, and then shall be effective only in the specific
instance and for the purpose for which given.

                  (2) No amendment, modification, waiver, discharge or
termination of any provision of this Agreement after the closing on the Closing
Date nor consent to any departure by the Company therefrom after the closing on
the Closing Date shall in any event be effective unless (A) the same shall be in
writing and signed (x) by the Company, if the Company is to be charged with
enforcement, or (y) by the Majority Holders, if the Buyer is to be charged with
enforcement, and (B) a corresponding amendment, modification, waiver, discharge
or termination is made to all of the Other Subscription Agreements, and in any
such case shall be effective only in the specific instance and for the purpose
for which given; provided, however, that no amendment, modification, waiver,
discharge or termination of any provision of Section 8 or 9 which amendment,
modification, waiver, discharge or termination adversely affects the Buyer shall
be made unless the same shall be signed by the Buyer.

                                      -52-
<PAGE>
                  (I) FURTHER ASSURANCES. Each party to this Agreement will
perform any and all acts and execute any and all documents as may be necessary
and proper under the circumstances in order to accomplish the intents and
purposes of this Agreement and to carry out its provisions.

                  (J) ASSIGNMENT OF CERTAIN RIGHTS AND OBLIGATIONS. The rights
of an Investor under Sections 5(a), 5(b), 5(c), 8, 9, and 10 of this Agreement
shall be automatically assigned by such Investor to any transferee of all or any
portion of such Investor's Registrable Securities (or all or any portion of the
Preferred Shares or any Warrant) who is an "accredited investor" as that term is
defined in Regulation D under the 1933 Act, only if: (1) such Investor agrees in
writing with such transferee to assign such rights, and a copy of such agreement
is furnished to the Company within a reasonable time after such assignment, (2)
the Company is, within a reasonable time after such assignment, furnished with
notice of (A) the name and address of such transferee and (B) the Securities
with respect to which such rights and obligations are being assigned, (3)
immediately following such assignment the further disposition of Registrable
Securities by such transferee is restricted under the 1933 Act and applicable
state securities laws, and (4) at or before the time the Company received the
notice contemplated by clause (2) of this sentence the transferee agrees in
writing with the Company (x) to be bound by all of the provisions contained in
Sections 5(a), 5(b), 5(c), 8, 9, and 10 hereof and (y) to complete and deliver
to the Company promptly a Questionnaire. Upon any such assignment, the Company
shall be obligated to such transferee to perform all of its covenants under
Sections 5, 8, 9, and 10 of this Agreement as if such transferee were the Buyer;
provided, however, that the Company shall remain obligated to such assigning
investor notwithstanding such assignment. In connection with any such transfer
the Company shall, at its sole cost and expense, promptly after such assignment,
and subject to receipt of a completed Questionnaire from the transferee, take
such actions as shall be reasonably acceptable to the transferring Investor and
such transferee to assure that the Registration Statement relating to the
Registrable Securities involved in such transfer and the Prospectus are
available for use by such transferee for sales of the Registrable Securities in
respect of which such rights and obligations have been so assigned.

                  (K) EXPENSES. The Company and the Buyer shall be responsible
for their respective expenses (including, without limitation, their respective
fees and expenses of their counsel)

                                      -53-
<PAGE>
incurred by them in connection with the negotiation and execution of, and
closing under, this Agreement except that the Company shall be obligated to pay
or reimburse the legal fees and expenses and out-of-pocket due diligence
expenses of the Investors, not in excess of $60,000, of which $40,000 shall be
payable in respect of the fees and costs of the Law Offices of Brian W Pusch,
counsel for certain of the Persons who are a Buyer under this Agreement or Other
Buyers under the Other Subscription Agreements, $10,000 shall be payable in
respect of the fees and expenses of Orrick, Herrington & Sutcliffe, counsel for
certain of the Persons who are a Buyer under this Agreement or Other Buyers
under the Other Subscription Agreements and up to $10,000 shall be payable in
respect of the fees and expenses of Thompson & Knight LLP, counsel for certain
of the Persons who are a Buyer under this Agreement or Other Buyers under the
Other Subscription Agreements. All reasonable expenses incurred in connection
with registrations, filings or qualifications pursuant to this Agreement shall
be paid by the Company, including, without limitation, all registration, listing
and qualifications fees, printers fees, accounting fees, and the fees and
disbursements of counsel for the Company but excluding (a) fees and expenses of
investment bankers retained by any Investor, (b) brokerage commissions incurred
by any Investor and (c) fees and expenses of counsel for the Investors to the
extent the same of counsel to the Investors, together with amounts paid or
reimbursed by the Company to the Investors pursuant to the first sentence of
this Section 10(k) exceed $60,000 (allocated as aforesaid). The Company shall
pay on demand all expenses incurred by the Buyer, including reasonable fees and
expenses of counsel, as a consequence of, or in connection with the negotiation,
preparation or execution of any amendment, modification or waiver of the
Transaction Documents initiated by the Company. The Company shall pay on demand
the expenses incurred by the Buyer, including reasonable fees and expenses of
counsel, as a consequence of, or in connection with (1) any default or breach of
any of the Company's obligations set forth in the Transaction Documents and (2)
the enforcement or restructuring of any right of, including the collection of
any payments due, the Buyer under the Transaction Documents, including any
action or proceeding relating to such enforcement or any order, injunction or
other process seeking to restrain the Company from paying any amount due the
Buyer, in any such case in the preceding clause (1) or (2) in an amount not to
exceed 1% of the Purchase Price paid by the Buyer. Except as otherwise provided
in this Section 10(k), each of the Company and the Buyer shall bear its own
expenses in connection with this Agreement and the transactions contemplated
hereby.

                                      -54-
<PAGE>
                  (L) TERMINATION. (1) The Buyer shall have the right to
terminate this Agreement by giving notice to the Company at any time at or prior
to the Closing Date if:

                  (A) the Company shall have failed, refused, or been unable at
         or prior to the date of such termination of this Agreement to perform
         any of its obligations hereunder;

                  (B) any other condition of the Buyer's obligations hereunder
         is not fulfilled; or

                  (C) the closing shall not have occurred on a Closing Date on
         or before January 31, 2003, other than solely by reason of a breach of
         this Agreement by the Buyer.

Any such termination shall be effective upon the giving of notice thereof by the
Buyer. Upon such termination, the Buyer shall have no further obligation to the
Company hereunder and the Company shall remain liable for any breach of this
Agreement or the other documents contemplated hereby which occurred on or prior
to the date of such termination.

                  (2) The Company shall have the right to terminate this
         Agreement by giving notice to the Company at any time at or prior to
         the Closing Date if:

                  (A) the Buyer shall have failed, refused, or been unable at or
         prior to the date of such termination of this Agreement to perform any
         of its obligations hereunder;

                  (B) any other condition of the Company's obligations hereunder
         is not fulfilled; or

                  (C) the closing shall not have occurred on a Closing Date on
         or before January 31, 2003, other than solely by reason of a breach of
         this Agreement by the Company;

so long as the Company is not in breach of this Agreement at the time it gives
such notice. Any such termination shall be effective upon the giving of notice
thereof by the Company. Upon such termination, neither the Company nor the Buyer
shall have any further obligation to one another hereunder.

                  (M) SURVIVAL. The respective representations, warranties,
covenants and agreements of the Company and the Buyer contained in this
Agreement and the other Transaction

                                      -55-
<PAGE>
Documents shall survive the execution and delivery of this Agreement and the
other Transaction Documents and the closing hereunder and the delivery of and
payment for the Preferred Shares and the issuance of the Warrant and shall
remain in full force and effect regardless of any investigation made by or on
behalf of the Buyer or any Person controlling or acting on behalf of the Buyer
or by the Company or any Person controlling or acting on behalf of the Company.

                  (N) PUBLIC STATEMENTS, PRESS RELEASES, ETC. (1) The Company
and the Buyer shall have the right to approve before issuance any press releases
or any other public statements with respect to the transactions contemplated
hereby; provided, however, that the Company shall be entitled, without the prior
approval of the Buyer, to make any press release or other public disclosure with
respect to such transactions as is required by applicable law and regulations,
including the 1933 Act and the rules and regulations promulgated thereunder
(although the Buyer shall be consulted by the Company in connection with any
such press release or other public disclosure prior to its release and shall be
provided with a copy thereof).

                  (2) The Company shall, on the Closing Date or on the next
succeeding Business Day, issue a press release, in the form of ANNEX VIII
hereto, concerning the transactions contemplated hereby and by the Other
Subscription Agreements.

                  (3) Within two Business Days after the Closing Date, the
Company will publicly report the issue and sale of the Preferred Shares and
Warrant and the issuance and sale of securities pursuant to the Other
Subscription Agreements by filing with the SEC a Current Report on Form 8-K
under the 1934 Act which report shall describe the material terms, and include
copies of, the Transaction Documents (or the forms thereof) as exhibits to such
report.

                  (O) CONSTRUCTION. The language used in this Agreement will be
deemed to be the language chosen by the parties to express their mutual intent,
and no rules of strict construction will be applied against any party.

                [Remainder of This Page Intentionally Left Blank]

                                      -56-
<PAGE>
                  IN WITNESS WHEREOF, the parties have caused this Agreement to
be duly executed by their respective officers or other representatives thereunto
duly authorized as of the date first set forth above and on the dates set forth
below their respective signatures.

Number of Preferred Shares:

Price Per Share:  $

Aggregate Purchase Price:  $

Warrant Shares Initially Issuable Upon Exercise of Warrant:

                                        QUESTCOR PHARMACEUTICALS,
                                             INC.

                                        By: /s/ Timothy E. Morris
                                            ------------------------------------
                                             Name: Timothy E. Morris
                                             Title: CFO

                                        Date:  December 29, 2002

                                        [INVESTOR],

                                        BY:
                                            ------------------------------------

                                        Address:

                                        Date:  December 29, 2002

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