<PAGE>   1

                                                                   Exhibit 10.9

===============================================================================


                                CREDIT AGREEMENT


                                   dated as of


                                December 3, 1997


                                      among


                              PHARMACY CORPORATION
                                   OF AMERICA,

                        CAPSTONE PHARMACY SERVICES, INC.,




                            The Lenders Party Hereto,

                             CIBC OPPENHEIMER CORP.,
                              as Syndication Agent

                                 BANK OF AMERICA
                     NATIONAL TRUST AND SAVINGS ASSOCIATION,
                             as Documentation Agent

                                       and

                            THE CHASE MANHATTAN BANK,
                             as Administrative Agent

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

                             CHASE SECURITIES INC.,

                             CIBC OPPENHEIMER CORP.,

                         BANCAMERICA ROBERTSON STEPHENS,

                                 as Co-Arrangers


===============================================================================


<PAGE>   2


                               TABLE OF CONTENTS


<TABLE>
<CAPTION>
                                                                              Page
                                                                              ----
<S>            <C>                                                            <C>
                                         ARTICLE I

                                        Definitions

SECTION 1.01.  Defined Terms....................................................1
SECTION 1.02.  Terms Generally.................................................13
SECTION 1.03.  Accounting Terms; GAAP..........................................13

                                        ARTICLE II

                                        The Credits

SECTION 2.01.  Commitments.....................................................13
SECTION 2.02.  Loans and Borrowings............................................13
SECTION 2.03.  Requests for Borrowings.........................................14
SECTION 2.04.  Funding of Borrowings...........................................14
SECTION 2.05.  Interest Elections..............................................15
SECTION 2.06.  Termination and Reduction of Commitments........................16
SECTION 2.07.  Repayment of Loans; Evidence of Debt............................16
SECTION 2.08.  Prepayment of Loans.............................................17
SECTION 2.09.  Fees............................................................17
SECTION 2.10.  Interest........................................................18
SECTION 2.11.  Alternate Rate of Interest......................................18
SECTION 2.12.  Increased Costs.................................................19
SECTION 2.13.  Break Funding Payments..........................................19
SECTION 2.14.  Taxes...........................................................20
SECTION 2.15.  Payments Generally; Pro Rata Treatment;
               Sharing of Set-offs.............................................20
SECTION 2.16.  Mitigation Obligations; Replacement of Lenders..................21

                                       ARTICLE III

                               Representations and Warranties

SECTION 3.01.  Organization; Powers............................................22
SECTION 3.02.  Authorization; Enforceability...................................22
SECTION 3.03.  Governmental Approvals; No Conflicts............................22
SECTION 3.04.  Financial Condition; No Material Adverse Change.................22
SECTION 3.05.  Properties......................................................23
SECTION 3.06.  Litigation and Environmental Matters............................23
SECTION 3.07.  Compliance with Laws and Agreements.............................23
SECTION 3.08.  Investment and Holding Company Status...........................23
SECTION 3.09.  Taxes...........................................................24
SECTION 3.10.  ERISA...........................................................24
SECTION 3.11.  Disclosure......................................................24
SECTION 3.12.  Representations and Warranties of Capstone......................24

</TABLE>

<PAGE>   3

                                                                               2

<TABLE>
<CAPTION>
<S>            <C>                                                             <C>
                                   ARTICLE IV

                                   Conditions

SECTION 4.01.  Effective Date..................................................24
SECTION 4.02.  Each Credit Event...............................................26
SECTION 4.03.  Subsequent Credit Events........................................26

                                    ARTICLE V

                              Affirmative Covenants

SECTION 5.01.  Financial Statements and Other Information......................26
SECTION 5.02.  Notices of Material Events......................................27
SECTION 5.03.  Existence; Conduct of Business..................................27
SECTION 5.04.  Payment of Obligations..........................................28
SECTION 5.05.  Maintenance of Properties; Insurance............................28
SECTION 5.06.  Books and Records; Inspection Rights............................28
SECTION 5.07.  Compliance with Laws............................................28
SECTION 5.08.  Use of Proceeds.................................................28
SECTION 5.09.  Additional Subsidiaries.........................................28

                                   ARTICLE VI

                               Negative Covenants

SECTION 6.01.  Indebtedness....................................................29
SECTION 6.02.  Liens...........................................................30
SECTION 6.03.  Fundamental Changes.............................................30
SECTION 6.04.  Investments, Loans, Advances, Guarantees and Acquisitions.......31
SECTION 6.05.  Hedging Agreements..............................................31
SECTION 6.06.  Restricted Payments.............................................31
SECTION 6.07.  Transactions with Affiliates....................................31
SECTION 6.08.  Restrictive Agreements..........................................31
SECTION 6.09.  Adjusted Leverage Ratio.........................................32
SECTION 6.10.  Consolidated Interest Expense Coverage Ratio....................32
SECTION 6.11.  Net Worth.......................................................32

                                   ARTICLE VII

                                Events of Default


                                  ARTICLE VIII

                            The Administrative Agent


                                   ARTICLE IX

                                  Miscellaneous

SECTION 9.01.  Notices.........................................................36
SECTION 9.02.  Waivers; Amendments.............................................36
SECTION 9.03.  Expenses; Indemnity; Damage Waiver..............................37
SECTION 9.04.  Successors and Assigns..........................................37
SECTION 9.05.  Survival........................................................39
SECTION 9.06.  Counterparts; Integration; Effectiveness........................39
</TABLE>


<PAGE>   4
                                                                               3

<TABLE>
<CAPTION>

<S>            <C>                                                             <C>
SECTION 9.07.  Severability....................................................40
SECTION 9.08.  Right of Setoff.................................................40
SECTION 9.09.  Governing Law; Jurisdiction; Consent to Service of Process......40
SECTION 9.10.  WAIVER OF JURY TRIAL............................................40
SECTION 9.11.  Headings........................................................41
SECTION 9.12.  Confidentiality.................................................41
SECTION 9.13.  Interest Rate Limitation........................................41
SECTION 9.14.  Borrower Upon Merger............................................41
</TABLE>


SCHEDULES:

Schedule 1.01 -- Guarantors
Schedule 2.01 -- Commitments
Schedule 3.06 -- Disclosed Matters
Schedule 6.01 -- Existing Indebtedness
Schedule 6.02 -- Existing Liens
Schedule 6.08 -- Existing Restrictions

EXHIBITS:

Exhibit A -- Form of Assignment and Acceptance
Exhibit B -- Form of Opinion of PCA's Deputy General Counsel
Exhibit C -- Form of Opinion of Capstone's Counsel
Exhibit D -- Form of 368(a) Reorganization Opinion
Exhibit E -- Form of Guarantee Agreement
Exhibit F -- Form of Indemnity, Subrogation and Contribution Agreement


<PAGE>   5



                                    CREDIT AGREEMENT dated as of December 3,
                           1997, among PHARMACY CORPORATION OF AMERICA, a
                           California corporation ("PCA"), CAPSTONE PHARMACY
                           SERVICES, INC., a Delaware corporation which, upon
                           the Merger referred to below, will change its name to
                           PharMerica, Inc. ("Capstone"), the LENDERS party
                           hereto, CIBC OPPENHEIMER CORP., as Syndication Agent,
                           BANK OF AMERICA NATIONAL TRUST AND SAVINGS
                           ASSOCIATION, as Documentation Agent and THE CHASE
                           MANHATTAN BANK, as Administrative Agent.

         Pursuant to an Agreement and Plan of Merger dated as of April 15, 1997
(the "Merger Agreement"), between Capstone and Beverly Enterprises, Inc., a
Delaware corporation ("Beverly"), Capstone will combine its business with the
institutional pharmacy business of Beverly. To effect such combination, (a) PCA,
a wholly owned subsidiary of Beverly, will, in its capacity as the Borrower
(such term and each other capitalized term used but not defined herein having
the meaning given to it in Article I), borrow hereunder to repay an intercompany
loan (the "Intercompany Loan") from Beverly in an outstanding principal amount
equal to approximately $275,000,000, (b) Beverly will transfer (the
"Restructuring") to New Beverly Holdings, Inc. ("NBHI") its Remaining Health
Care Assets and its Remaining Health Care Liabilities (as each such term is
defined in the Merger Agreement), (c) all the capital stock of NBHI will be
distributed to the stockholders of Beverly (the "Distribution"), (d) Beverly
will merge (the "Merger") with and into Capstone, with Capstone being the
surviving corporation of the Merger on the terms set forth in the Merger
Agreement, (e) Capstone will assume the obligations of PCA hereunder and become
the Borrower hereunder pursuant to and in accordance with Section 9.14 and (f)
Capstone will borrow hereunder to refinance the Credit Agreement dated as of
December 6, 1996, among Capstone, Bankers Trust Company and the banks named
therein (the "Existing Credit Agreement" and, together with the Intercompany
Loan, the "Existing Indebtedness"), in the outstanding amount of approximately
$109,000,000. The transactions described in this paragraph are collectively
referred to herein as the "Transactions".

         The Borrower has requested the Lenders to extend credit in the form of
Loans at any time and from time to time prior to the Maturity Date, in an
aggregate principal amount at any time outstanding not in excess of
$550,000,000. The proceeds of the Loans are to be used (a) on the Closing Date,
to refinance the Intercompany Loan, (b) on and after the Closing Date, to pay
fees and expenses in connection with the Transactions, (c) substantially
simultaneously with the consummation of the Merger, to repay any loans
outstanding under the Existing Credit Agreement and (d) upon and after the
consummation of the Merger, for general corporate purposes, including Permitted
Acquisitions.

         The Lenders are willing to extend such credit to the Borrower on the
terms and subject to the conditions set forth herein. Accordingly, the parties
hereto agree as follows:

                                    ARTICLE I

                                   Definitions

         SECTION 1.01. Defined Terms. As used in this Agreement, the following
terms have the meanings specified below:

         "ABR", when used in reference to any Loan or Borrowing, refers to
whether such Loan, or the Loans comprising such Borrowing, are bearing interest
at a rate determined by reference to the Alternate Base Rate.

         "Acquired EBITDA" shall mean, with respect to any Acquired Entity or
Business or any Sold Entity or Business for any period, the sum of the amounts
for such period of net income or loss of

<PAGE>   6

                                                                               2


such Acquired Entity or Business or Sold Entity or Business determined on a
consolidated basis in accordance with GAAP, plus, without duplication and to the
extent deducted from revenues in determining such consolidated net income or
loss, the sum of (a) the aggregate amount of interest expense, both expensed
and capitalized (including the interest component in respect of Capital Lease
Obligations), accrued or paid during such period, in each case as determined on
a consolidated basis in accordance with GAAP, (b) the aggregate amount of income
tax expense for such period, (c) all amounts attributable to depreciation and
amortization for such period, (d) all extraordinary charges during such period
and (e) non-cash expenses or losses during such period, and minus, without
duplication and to the extent added to revenues in determining such consolidated
net income or loss for such period, (i) all interest income for such period,
(ii) all extraordinary gains during such period and (iii) all non-cash income or
non-cash gains during such period, all as determined on a consolidated basis
with respect to such Acquired Entity or Business or Sold Entity or Business in
accordance with GAAP; provided that Acquired EBITDA shall include an adjustment
on a pro forma basis to reflect identifiable net cost savings as agreed to by
the Administrative Agent and the Borrower.

         "Acquired Entity or Business" has the meaning assigned to such term in
the definition of Adjusted Consolidated EBITDA.

         "Adjusted Consolidated EBITDA" means, for any period, Consolidated
EBITDA for such period, calculated by (a) including in the determination thereof
the Acquired EBITDA of any Person, property, business or asset in the Borrower's
or any Subsidiary's line of business acquired pursuant to a Permitted
Acquisition and not subsequently sold, transferred or otherwise disposed of by
the Borrower or any of the Subsidiaries during such period (each such Person,
property, business or asset, an "Acquired Entity or Business"), based on the
Acquired EBITDA of such Acquired Entity or Business for such period (including
the portion thereof occurring prior to such acquisition) and (b) excluding in
the determination thereof the Acquired EBITDA of any Person, property, business
or asset sold, transferred or otherwise disposed of by the Borrower or any of
the Subsidiaries during such period (each such Person, property, business or
asset, a "Sold Entity or Business") based on the Acquired EBITDA of such Sold
Entity or Business for such period (including the portion thereof occurring
prior to such sale, transfer or disposition).

         "Adjusted Leverage Ratio" means, on any date, the ratio of (a) Total
Debt as of such date to (b) Adjusted Consolidated EBITDA for the period of four
consecutive fiscal quarters of the Borrower most recently ended as of such date,
all determined on a consolidated basis in accordance with GAAP.

         "Adjusted LIBO Rate" means, with respect to any Eurodollar Borrowing
for any Interest Period, an interest rate per annum (rounded upwards, if
necessary, to the next 1/16 of 1%) equal to (a) the LIBO Rate for such Interest
Period multiplied by (b) the Statutory Reserve Rate.

         "Administrative Agent" means The Chase Manhattan Bank, in its capacity
as administrative agent for the Lenders hereunder.

         "Administrative Questionnaire" means an Administrative Questionnaire in
a form supplied by the Administrative Agent.

         "Affiliate" means, with respect to a specified Person, another Person
that directly, or indirectly through one or more intermediaries, Controls or is
Controlled by or is under common Control with the Person specified.

         "Alternate Base Rate" means, for any day, a rate per annum equal to the
greatest of (a) the Prime Rate in effect on such day, (b) the Base CD Rate in
effect on such day plus 1% and (c) the Federal Funds Effective Rate in effect on
such day plus 1/2 of 1%. Any change in the Alternate Base Rate due to a change
in the Prime Rate, the Base CD Rate or the Federal Funds Effective Rate

<PAGE>   7

                                                                               3


shall be effective from and including the effective date of such change in the
Prime Rate, the Base CD Rate or the Federal Funds Effective Rate, respectively.

         "Applicable Percentage" means, with respect to any Lender, the
percentage of the total Commitments represented by such Lender's Commitment. If
the Commitments have terminated or expired, the Applicable Percentages shall be
determined based upon the Commitments most recently in effect, giving effect to
any assignments.

         "Applicable Rate" means, for any day, with respect to any Eurodollar
Loan or with respect to the facility fees payable hereunder, as the case may be,
the applicable rate per annum set forth below under the caption "Eurodollar
Spread" or "Facility Fee Rate", as applicable, based upon the Adjusted Leverage
Ratio as of the most recent determination date; provided that (a) until the
delivery to the Administrative Agent, pursuant to Section 5.01(b), of the
Borrower's consolidated financial statements for the Borrower's fiscal quarter
ending September 30, 1998, the "Applicable Rate" shall be deemed to be in
Category 2 and (b) in the event that the Merger shall not have been consummated
on or prior to the fifth Business Day following the Closing Date, then from and
including the Effective Date to but excluding the date on which the Merger is
consummated, the "Applicable Rate" with respect to any Eurodollar Loan shall be
2.3125% per annum:

<TABLE>
<CAPTION>
===============================================================================
                                     Eurodollar             Facility Fee
   Adjusted Leverage Ratio:            Spread                   Rate
<S>                                  <C>                    <C>
-------------------------------------------------------------------------------
          Category 1

   Greater than 3.50 to 1.00           0.3750%                0.2500%
-------------------------------------------------------------------------------
          Category 2

Greater than 3.00 to 1.00 but less
 than or equal to 3.50 to 1.00         0.3125%                0.1875%
-------------------------------------------------------------------------------
          Category 3

Greater than 2.50 to 1.00 but less
 than or equal to 3.00 to 1.00         0.2500%                0.1500%
-------------------------------------------------------------------------------
          Category 4

Greater than 2.00 to 1.00 but less
 than or equal to 2.50 to 1.00         0.2250%                0.1250%
===============================================================================

          Category 5

Less than or equal to 2.00 to 1.00     0.2000%                0.1000%
===============================================================================
</TABLE>

         Each change in the Applicable Rate resulting from a change in the
Adjusted Leverage Ratio shall be effective with respect to all Loans and
Commitments outstanding on and after the date of delivery to the Administrative
Agent of the financial statements and certificates required by Section 5.01(a)
or (b) indicating such change until the date immediately preceding the next date
of delivery of such financial statements and certificates indicating another
such change. Notwithstanding the foregoing, (i) at any time after the occurrence
and during the continuance of an Event of Default, the Adjusted Leverage Ratio
shall be deemed to be in Category 1 for purposes of determining the Applicable
Rate and (ii) if upon the delivery to the Administrative Agent, pursuant to
Section 5.01(b), of the Borrower's consolidated financial statements for the
Borrower's fiscal quarter ending September 30, 1998, such financial statements
indicate the Applicable Rate is in Category 1, then the Applicable Rate for the
period (the "Adjustment Period") commencing on and including August 30, 1997,
through but excluding the date of delivery of such financial statements (the
"Delivery Date") shall be deemed to have been in Category 1 and the Borrower
shall, within three Business Days of the Delivery Date, pay to the
Administrative Agent for the accounts of the Lenders


<PAGE>   8

                                                                               4


entitled thereto an amount equal to the difference between the amount of
interest and facility fees that would have been paid during the Adjustment
Period had the Applicable Rate been in Category 1 and the amount of interest and
facility fees during the Adjustment Period.

         "Assessment Rate" means, for any day, the annual assessment rate in
effect on such day that is payable by a member of the Bank Insurance Fund
classified as "well-capitalized" and within supervisory subgroup "B" (or a
comparable successor risk classification) within the meaning of 12 C.F.R. Part
327 (or any successor provision) to the Federal Deposit Insurance Corporation
for insurance by such Corporation of time deposits made in dollars at the
offices of such member in the United States; provided that if, as a result of
any change in any law, rule or regulation, it is no longer possible to determine
the Assessment Rate as aforesaid, then the Assessment Rate shall be such annual
rate as shall be determined by the Administrative Agent to be representative of
the cost of such insurance to the Lenders.

         "Assignment and Acceptance" means an assignment and acceptance entered
into by a Lender and an assignee (with the consent of any party whose consent is
required by Section 9.04), and accepted by the Administrative Agent, in the form
of Exhibit A or any other form approved by the Administrative Agent.

         "Availability Period" means the period from and including the Effective
Date to but excluding the earlier of the Maturity Date and the date of
termination of the Commitments.

         "Base CD Rate" means the sum of (a) the Three-Month Secondary CD Rate
multiplied by the Statutory Reserve Rate plus (b) the Assessment Rate.

         "Beverly" has the meaning assigned to such term in the preamble to this
Agreement.

         "Board" means the Board of Governors of the Federal Reserve System of
the United States of America.

         "Borrower" means (i) prior to the date of the consummation of the
Merger, PCA and (ii) from and after the date of the consummation of the Merger,
Capstone.

         "Borrowing" means Loans of the same Type, made, converted or continued
on the same date and, in the case of Eurodollar Loans, as to which a single
Interest Period is in effect.

         "Borrowing Request" means a request by the Borrower for a Borrowing in
accordance with Section 2.03.

         "Business Day" means any day that is not a Saturday, Sunday or other
day on which commercial banks in New York City are authorized or required by law
to remain closed; provided that, when used in connection with a Eurodollar Loan,
the term "Business Day" shall also exclude any day on which banks are not open
for dealings in dollar deposits in the London interbank market.

         "Capital Lease Obligations" of any Person means the obligations of such
Person to pay rent or other amounts under any lease of (or other arrangement
conveying the right to use) real or personal property, or a combination thereof,
which obligations are required to be classified and accounted for as capital
leases on a balance sheet of such Person under GAAP, and the amount of such
obligations shall be the capitalized amount thereof determined in accordance
with GAAP.

         "Change in Control" means, after giving effect to the consummation of
the Merger, (a) the acquisition of ownership, directly or indirectly,
beneficially or of record, by any Person or group (within the meaning of the
Securities Exchange Act of 1934 and the rules of the Securities and Exchange
Commission thereunder as in effect on the date hereof), of shares representing
more than 25% of the aggregate ordinary voting power represented by the issued
and outstanding capital stock

<PAGE>   9

                                                                               5


of Capstone; (b) occupation of a majority of the seats (other than vacant seats)
on the board of directors of Capstone by Persons who were neither (i) nominated
by such board of directors of Capstone nor (ii) appointed by directors so
nominated; or (c) the occurrence of any change in control (or similar event,
however denominated) with respect to Capstone or any of its Subsidiaries under
and as defined in any indenture or agreement in respect of Material Indebtedness
to which Capstone or any Subsidiary is a party.

         "Change in Law" means (a) the adoption of any law, rule or regulation
after the date of this Agreement, (b) any change in any law, rule or regulation
or in the interpretation or application thereof by any Governmental Authority
after the date of this Agreement or (c) compliance by any Lender (or, for
purposes of Section 2.12(b), by any lending office of such Lender or by such
Lender's holding company, if any) with any request, guideline or directive
(whether or not having the force of law) of any Governmental Authority made or
issued after the date of this Agreement.

         "Closing Date" shall mean the date of the first Borrowing.

         "Code" means the Internal Revenue Code of 1986, as amended from time to
time.

         "Commitment" means, with respect to each Lender, the commitment of such
Lender to make Loans hereunder, as such commitment may be (a) reduced from time
to time pursuant to Section 2.06 and (b) reduced or increased from time to time
pursuant to assignments by or to such Lender pursuant to Section 9.04. The
initial amount of each Lender's Commitment is set forth on Schedule 2.01, or in
the Assignment and Acceptance pursuant to which such Lender shall have assumed
its Commitment, as applicable. The initial aggregate amount of the Lenders'
Commitments is $550,000,000.

         "Consolidated EBITDA" means, for any period, Consolidated Net Income
for such period, plus, without duplication and to the extent deducted from
revenues in determining Consolidated Net Income, the sum of (a) the aggregate
amount of Consolidated Interest Expense for such period, (b) the aggregate
amount of income tax expense for such period, (c) all amounts attributable to
depreciation and amortization for such period, (d) all extraordinary charges
during such period, (e) non-cash expenses, losses or charges during such period
and (f) restructuring charges taken in the fourth quarter of 1997 and/or the
first quarter of 1998 in connection with the Transactions in an aggregate amount
not to exceed $35,000,000, and minus, without duplication and to the extent
added to revenues in determining Consolidated Net Income for such period, (i)
all interest income for such period, (ii) all extraordinary gains during such
period, (iii) all non-cash income or non-cash gains during such period and (iv)
all cash expenditures during such period in respect of non-cash charges taken in
one or more prior periods, all as determined on a consolidated basis with
respect to the Borrower and the Subsidiaries in accordance with GAAP.

         "Consolidated Interest Expense" means, for any period, the interest
expense, both expensed and capitalized (including the interest component in
respect of Capital Lease Obligations), accrued or paid by the Borrower and the
Subsidiaries during such period, determined on a consolidated basis in
accordance with GAAP.

         "Consolidated Net Income" means, for any period, net income or loss of
the Borrower and the Subsidiaries for such period determined on a consolidated
basis in accordance with GAAP, provided that there shall be excluded (a) the
income of any Person in which any other person (other than the Borrower or any
of the Subsidiaries or any director holding qualifying shares in accordance with
applicable law) has a joint interest, except to the extent of the amount of
dividends or other distributions actually paid to the Borrower or any wholly
owned Subsidiary by such person during such period, (b) the income (or loss) of
any Person accrued prior to the date it becomes a Subsidiary or is merged into
or consolidated with the Borrower or any of the Subsidiaries or the date that
Person's assets are acquired by the Borrower or any of the Subsidiaries and (c)
the income of any Subsidiary of the Borrower to the extent that the declaration
or payment of dividends or similar

<PAGE>   10

                                                                               6

distributions by the Subsidiary of that income is not at the time permitted by
operation of the terms of its charter or any agreement, instrument, judgment,
decree, order, statute, rule or governmental regulation applicable to that
Subsidiary.

         "Consolidated Net Worth" means, as of any date of determination, the
consolidated stockholders' equity of the Borrower and the Subsidiaries, as
determined on a consolidated basis in accordance with GAAP.

         "Control" means the possession, directly or indirectly, of the power to
direct or cause the direction of the management or policies of a Person, whether
through the ability to exercise voting power, by contract or otherwise.
"Controlling" and "Controlled" have meanings correlative thereto.

         "Default" means any event or condition which constitutes an Event of
Default or which upon notice, lapse of time or both would, unless cured or
waived, become an Event of Default.

         "Disclosed Matters" means the actions, suits and proceedings and the
environmental matters disclosed in Schedule 3.06.

         "Distribution" has the meaning given to such term in the preamble to
this Agreement.

         "dollars" or "$" refers to lawful money of the United States of
America.

         "Effective Date" means the date on which the conditions specified in
Section 4.01 are satisfied (or waived in accordance with Section 9.02).

         "Environmental Laws" means all laws, rules, regulations, codes,
ordinances, orders, decrees, judgments, injunctions, notices or binding
agreements issued, promulgated or entered into by any Governmental Authority,
relating in any way to the environment, preservation or reclamation of natural
resources, the management, release or threatened release of any Hazardous
Material or to health and safety matters.

         "Environmental Liability" means any liability, contingent or otherwise
(including any liability for damages, costs of environmental remediation, fines,
penalties or indemnities), of the Borrower or any Subsidiary directly or
indirectly resulting from or based upon (a) violation of any Environmental Law,
(b) the generation, use, handling, transportation, storage, treatment or
disposal of any Hazardous Materials, (c) exposure to any Hazardous Materials,
(d) the release or threatened release of any Hazardous Materials into the
environment or (e) any contract, agreement or other consensual arrangement
pursuant to which liability is assumed or imposed with respect to any of the
foregoing.

         "ERISA" means the Employee Retirement Income Security Act of 1974, as
amended from time to time.

         "ERISA Affiliate" means any trade or business (whether or not
incorporated) that, together with the Borrower, is treated as a single employer
under Section 414(b) or (c) of the Code or, solely for purposes of Section 302
of ERISA and Section 412 of the Code, is treated as a single employer under
Section 414 of the Code.

         "ERISA Event" means (a) any "reportable event", as defined in Section
4043 of ERISA or the regulations issued thereunder with respect to a Plan (other
than an event for which the 30-day notice period is waived); (b) the existence
with respect to any Plan of an "accumulated funding deficiency" (as defined in
Section 412 of the Code or Section 302 of ERISA), whether or not waived; (c) the
filing pursuant to Section 412(d) of the Code or Section 303(d) of ERISA of an
application for a waiver of the minimum funding standard with respect to any
Plan; (d) the incurrence by the Borrower or any of its ERISA Affiliates of any
liability under Title IV of ERISA


<PAGE>   11

                                                                               7


with respect to the termination of any Plan; (e) the receipt by the Borrower or
any ERISA Affiliate from the PBGC or a plan administrator of any notice relating
to an intention to terminate any Plan or Plans or to appoint a trustee to
administer any Plan; (f) the incurrence by the Borrower or any of its ERISA
Affiliates of any liability with respect to the withdrawal or partial withdrawal
from any Plan or Multiemployer Plan; or (g) the receipt by the Borrower or any
ERISA Affiliate of any notice, or the receipt by any Multiemployer Plan from the
Borrower or any ERISA Affiliate of any notice, concerning the imposition of
Withdrawal Liability or a determination that a Multiemployer Plan is, or is
expected to be, insolvent or in reorganization, within the meaning of Title IV
of ERISA.

         "Eurodollar", when used in reference to any Loan or Borrowing, refers
to whether such Loan, or the Loans comprising such Borrowing, are bearing
interest at a rate determined by reference to the Adjusted LIBO Rate.

         "Event of Default" has the meaning assigned to such term in
Article VII.

         "Excluded Taxes" means, with respect to the Administrative Agent, any
Lender or any other recipient of any payment to be made by or on account of any
obligation of the Borrower hereunder, (a) income or franchise taxes imposed on
(or measured by) its net income by the United States of America, or by the
jurisdiction under the laws of which such recipient is organized or in which its
principal office is located or, in the case of any Lender, in which its
applicable lending office is located, (b) any branch profits taxes imposed by
the United States of America or any similar tax imposed by any other
jurisdiction in which the Borrower is located and (c) in the case of a Foreign
Lender (other than an assignee pursuant to a request by the Borrower under
Section 2.16(b)), any withholding tax that is imposed on amounts payable to such
Foreign Lender at the time such Foreign Lender becomes a party to this Agreement
(or designates a new lending office) or is attributable to such Foreign Lender's
failure to comply with Section 2.14(e), except to the extent that such Foreign
Lender (or its assignor, if any) was entitled, at the time of designation of a
new lending office (or assignment), to receive additional amounts from the
Borrower with respect to such withholding tax pursuant to Section 2.14(a).

         "Existing Credit Agreement" has the meaning assigned to such term in
the preamble to this Agreement.

         "Existing Indebtedness" has the meaning assigned to such term in the
preamble to this Agreement.

         "Federal Funds Effective Rate" means, for any day, the weighted average
(rounded upwards, if necessary, to the next 1/100 of 1%) of the rates on
overnight Federal funds transactions with members of the Federal Reserve System
arranged by Federal funds brokers, as published on the next succeeding Business
Day by the Federal Reserve Bank of New York, or, if such rate is not so
published for any day that is a Business Day, the average (rounded upwards, if
necessary, to the next 1/100 of 1%) of the quotations for such day for such
transactions received by the Administrative Agent from three Federal funds
brokers of recognized standing selected by it.

         "Financial Officer" means the chief financial officer, principal
accounting officer, treasurer or controller of the Borrower.

         "Foreign Lender" means any Lender that is organized under the laws of a
jurisdiction other than that in which the Borrower is located. For purposes of
this definition, the United States of America, each State thereof and the
District of Columbia shall be deemed to constitute a single jurisdiction.

         "GAAP" means generally accepted accounting principles in the United
States of America.


<PAGE>   12

                                                                               8


         "Governmental Authority" means the government of the United States of
America, any other nation or any political subdivision thereof, whether state or
local, and any agency, authority, instrumentality, regulatory body, court,
central bank or other entity exercising executive, legislative, judicial,
taxing, regulatory or administrative powers or functions of or pertaining to
government.

         "Guarantee" of or by any Person (the "guarantor") means any obligation,
contingent or otherwise, of the guarantor guaranteeing or having the economic
effect of guaranteeing any Indebtedness or other obligation of any other Person
(the "primary obligor") in any manner, whether directly or indirectly, and
including any obligation of the guarantor, direct or indirect, (a) to purchase
or pay (or advance or supply funds for the purchase or payment of) such
Indebtedness or other obligation or to purchase (or to advance or supply funds
for the purchase of) any security for the payment thereof, (b) to purchase or
lease property, securities or services for the purpose of assuring the owner of
such Indebtedness or other obligation of the payment thereof, (c) to maintain
working capital, equity capital or any other financial statement condition or
liquidity of the primary obligor so as to enable the primary obligor to pay such
Indebtedness or other obligation or (d) as an account party in respect of any
letter of credit or letter of guaranty issued to support such Indebtedness or
obligation; provided, that the term Guarantee shall not include endorsements for
collection or deposit in the ordinary course of business.

         "Guarantee Agreement" means the Guarantee Agreement, substantially in
the form of Exhibit E, made by the Guarantors in favor of the Administrative
Agent for the benefit of the Lenders.

         "Guarantors" means (a) each of the Persons listed on Schedule 1.01 and
(b) each other Person that becomes a party to the Guarantee Agreement as a
Guarantor thereunder.

         "Hazardous Materials" means all explosive or radioactive substances or
wastes and all hazardous or toxic substances, wastes or other pollutants,
including petroleum or petroleum distillates, asbestos or asbestos containing
materials, polychlorinated biphenyls, radon gas, infectious or medical wastes
and all other substances or wastes of any nature regulated pursuant to any
Environmental Law.

         "Hedging Agreement" means any interest rate protection agreement,
foreign currency exchange agreement, commodity price protection agreement or
other interest or currency exchange rate or commodity price hedging arrangement.

         "Indebtedness" of any Person means, without duplication, (a) all
obligations of such Person for borrowed money or with respect to deposits or
advances of any kind, (b) all obligations of such Person evidenced by bonds,
debentures, notes or similar instruments, (c) all obligations (other than
accounts payable incurred in the ordinary course of business) of such Person
upon which interest charges are customarily paid, (d) all obligations of such
Person under conditional sale or other title retention agreements relating to
property acquired by such Person, (e) all obligations of such Person in respect
of the deferred purchase price of property or services (excluding accounts
payable incurred in the ordinary course of business), (f) all Indebtedness of
others secured by (or for which the holder of such Indebtedness has an existing
right, contingent or otherwise, to be secured by) any Lien on property owned or
acquired by such Person, whether or not the Indebtedness secured thereby has
been assumed, (g) all Guarantees by such Person of Indebtedness of others, (h)
all Capital Lease Obligations of such Person, (i) all obligations, contingent or
otherwise, of such Person as an account party in respect of letters of credit
and letters of guaranty and (j) all obligations, contingent or otherwise, of
such Person in respect of bankers' acceptances. The Indebtedness of any Person
shall include the Indebtedness of any other entity (including any partnership in
which such Person is a general partner) to the extent such Person is liable
therefor as a result of such Person's ownership interest in or other
relationship with such entity, except to the extent the terms of such
Indebtedness provide that such Person is not liable therefor. Notwithstanding
the foregoing, the term

<PAGE>   13


                                                                               9


"Indebtedness" shall not include the obligation to pay additional purchase price
in connection with an acquisition under a contingent "earnout" agreement,
whether or not evidenced by a note.

         "Indemnified Taxes" means Taxes other than Excluded Taxes.

         "Indemnity, Subrogation and Contribution Agreement" means the
Indemnity, Subrogation and Contribution Agreement, substantially in the form of
Exhibit F, among the Capstone, the Guarantors and the Administrative Agent.

         "Information Memorandum" means the Confidential Information Memorandum
dated October 1997 relating to the Capstone, PCA and the Transactions.

         "Intercompany Loan" has the meaning assigned to such term in the
preamble to this Agreement.

         "Interest Election Request" means a request by the Borrower to convert
or continue a Borrowing in accordance with Section 2.05.

         "Interest Payment Date" means (a) with respect to any ABR Loan, the
last day of each March, June, September and December and (b) with respect to any
Eurodollar Loan, the last day of the Interest Period applicable to the Borrowing
of which such Loan is a part and, in the case of a Eurodollar Borrowing with an
Interest Period of more than three months' duration, each day prior to the last
day of such Interest Period that occurs at intervals of three months' duration
after the first day of such Interest Period.

         "Interest Period" means with respect to any Eurodollar Borrowing, the
period commencing on the date of such Borrowing and ending on the numerically
corresponding day in the calendar month that is one, two, three or six months
thereafter, as the Borrower may elect; provided, that (i) if any Interest Period
would end on a day other than a Business Day, such Interest Period shall be
extended to the next succeeding Business Day unless such next succeeding
Business Day would fall in the next calendar month, in which case such Interest
Period shall end on the next preceding Business Day and (ii) any Interest Period
that commences on the last Business Day of a calendar month (or on a day for
which there is no numerically corresponding day in the last calendar month of
such Interest Period) shall end on the last Business Day of the last calendar
month of such Interest Period. For purposes hereof, the date of a Borrowing
initially shall be the date on which such Borrowing is made and thereafter shall
be the effective date of the most recent conversion or continuation of such
Borrowing.

         "Lenders" means the Persons listed on Schedule 2.01 and any other
Person that shall have become a party hereto pursuant to an Assignment and
Acceptance, other than any such Person that ceases to be a party hereto pursuant
to an Assignment and Acceptance.

         "LIBO Rate" means, with respect to any Eurodollar Borrowing for any
Interest Period, the rate appearing on Page 3750 of the Telerate Service (or on
any successor or substitute page of such Service, or any successor to or
substitute for such Service, providing rate quotations comparable to those
currently provided on such page of such Service, as determined by the
Administrative Agent from time to time for purposes of providing quotations of
interest rates applicable to dollar deposits in the London interbank market) at
approximately 11:00 a.m., London time, two Business Days prior to the
commencement of such Interest Period, as the rate for dollar deposits with a
maturity comparable to such Interest Period. In the event that such rate is not
available at such time for any reason, then the "LIBO Rate" with respect to such
Eurodollar Borrowing for such Interest Period shall be the rate at which dollar
deposits of $5,000,000 and for a maturity comparable to such Interest Period are
offered by the principal London office of the Administrative Agent in
immediately available funds in the London interbank market at approximately
11:00 a.m., London time, two Business Days prior to the commencement of such
Interest Period.


<PAGE>   14

                                                                              10

         "Lien" means, with respect to any asset, (a) any mortgage, deed of
trust, lien, pledge, hypothecation, encumbrance, charge or security interest in,
on or of such asset, (b) the interest of a vendor or a lessor under any
conditional sale agreement, capital lease or title retention agreement (or any
financing lease having substantially the same economic effect as any of the
foregoing) relating to such asset and (c) in the case of securities, any
purchase option, call or similar right of a third party with respect to such
securities.

         "Loan Documents" means this Agreement, the Guarantee Agreement and the
Indemnity, Subrogation and Contribution Agreement.

         "Loan Parties" means the Borrower and the domestic Subsidiaries.

         "Loans" means the loans made by the Lenders to the Borrower pursuant to
 this Agreement.

         "Material Adverse Effect" means a material adverse effect on (a) the
business, assets, operations, prospects or condition, financial or otherwise, of
the Borrower and the Subsidiaries taken as a whole, (b) the ability of the
Borrower to perform any of its obligations under this Agreement or the ability
of the Guarantors, taken as a whole, to perform their obligations under the
Guarantee Agreement or (c) the rights of or benefits available to the Lenders
under this Agreement or the Guarantee Agreement.

         "Material Indebtedness" means Indebtedness (other than the Loans), or
obligations in respect of one or more Hedging Agreements, of any one or more of
the Borrower and its Subsidiaries in an aggregate principal amount exceeding
$10,000,000. For purposes of determining Material Indebtedness, the "principal
amount" of the obligations of the Borrower or any Subsidiary in respect of any
Hedging Agreement at any time shall be the maximum aggregate amount (giving
effect to any netting agreements) that the Borrower or such Subsidiary would be
required to pay if such Hedging Agreement were terminated at such time.

         "Maturity Date" means December 3, 2002.

         "Merger" has the meaning assigned to such term in the preamble to this
Agreement.

         "Merger Agreement" has the meaning assigned to such term in the
preamble to this Agreement.

         "Moody's" means Moody's Investors Service, Inc.

         "Multiemployer Plan" means a multiemployer plan as defined in Section
4001(a)(3) of ERISA.

         "NBHI" has the meaning assigned to such term in the preamble to this
Agreement.

         "Other Taxes" means any and all present or future stamp or documentary
taxes or any other excise or property taxes, charges or similar levies arising
from any payment made hereunder or from the execution, delivery or enforcement
of, or otherwise with respect to, this Agreement.

         "PBGC" means the Pension Benefit Guaranty Corporation referred to and
defined in ERISA and any successor entity performing similar functions.

         "Permitted Acquisition" means any non-hostile acquisition of all or
substantially all the assets of, or 100% of the shares or other equity interests
in, a Person or division or line of business of a Person engaged in the same
line of business as the Borrower or a line of business reasonably incidental
thereto if, immediately after giving effect thereto, (i) no Default or Event of
Default has occurred and is continuing or would result therefrom, (ii) if such
acquisition results in the creation


<PAGE>   15

                                                                              11


or acquisition of one or more Subsidiaries, such Subsidiary or Subsidiaries
shall become a Guarantor or Guarantors, to the extent required by Section 5.09,
and (iii)(A) the Borrower and the Subsidiaries are in compliance, on a pro forma
basis after giving effect to such acquisition or formation, with the covenants
contained in Sections 6.01, 6.09, 6.10 and 6.11, recomputed as at the last day
of the most recently ended fiscal quarter of the Borrower as if such acquisition
had occurred on the first day of each relevant period for testing such
compliance and (B) the Borrower has delivered to the Administrative Agent an
officers' certificate confirming compliance with clauses (i) and (iii) above,
together with all relevant financial information for such subsidiary or assets
being acquired.

         "Permitted Encumbrances" means:

                  (a) Liens imposed by law for taxes that are not yet due or are
         being contested in compliance with Section 5.04;

                  (b) carriers', warehousemen's, mechanics', materialmen's,
         repairmen's and other like Liens imposed by law, arising in the
         ordinary course of business and securing obligations that are not
         overdue by more than 30 days or are being contested in compliance with
         Section 5.04;

                  (c) pledges and deposits made in the ordinary course of
         business in compliance with workers' compensation, unemployment
         insurance and other social security laws or regulations;

                  (d) deposits to secure the performance of bids, trade
         contracts, leases, statutory obligations, surety and appeal bonds,
         performance bonds and other obligations of a like nature, in each case
         in the ordinary course of business;

                  (e) judgment liens in respect of judgments that do not
         constitute an Event of Default under clause (k) of Article VII; and

                  (f) easements, zoning restrictions, rights-of-way and similar
         encumbrances on real property imposed by law or arising in the ordinary
         course of business that do not secure any monetary obligations and do
         not materially detract from the value of the affected property or
         interfere with the ordinary conduct of business of the Borrower or any
         Subsidiary;

provided that the term "Permitted Encumbrances" shall not include any Lien
securing Indebtedness for borrowed money.

         "Permitted Investments" means:

                  (a) direct obligations of, or obligations the principal of and
         interest on which are unconditionally guaranteed by, the United States
         of America (or by any agency thereof to the extent such obligations are
         backed by the full faith and credit of the United States of America),
         in each case maturing within one year from the date of acquisition
         thereof;

                  (b) investments in commercial paper maturing within 270 days
         from the date of acquisition thereof and having, at such date of
         acquisition, the highest credit rating obtainable from S&P or from
         Moody's;

                  (c) investments in certificates of deposit, banker's
         acceptances and time deposits maturing within 180 days from the date of
         acquisition thereof issued or guaranteed by or placed with, and money
         market deposit accounts issued or offered by, any domestic office of
         any commercial bank organized under the laws of the United States of
         America or any State thereof which has a combined capital and surplus
         and undivided profits of not less than $500,000,000; and

<PAGE>   16


                                                                              12


                  (d) fully collateralized repurchase agreements with a term of
         not more than 30 days for securities described in clause (a) above and
         entered into with a financial institution satisfying the criteria
         described in clause (c) above.

         "Person" means any natural person, corporation, limited liability
company, trust, joint venture, association, company, partnership, Governmental
Authority or other entity.

         "Plan" means any employee pension benefit plan (other than a
Multiemployer Plan) subject to the provisions of Title IV of ERISA or Section
412 of the Code or Section 302 of ERISA, and in respect of which the Borrower or
any ERISA Affiliate is (or, if such plan were terminated, would under Section
4069 of ERISA be deemed to be) an "employer" as defined in Section 3(5) of
ERISA.

         "Prime Rate" means the rate of interest per annum publicly announced
from time to time by The Chase Manhattan Bank as its prime rate in effect at its
principal office in New York City; each change in the Prime Rate shall be
effective from and including the date such change is publicly announced as being
effective.

         "Register" has the meaning set forth in Section 9.04.

         "Related Parties" means, with respect to any specified Person, such
Person's Affiliates and the respective directors, officers, employees, agents
and advisors of such Person and such Person's Affiliates.

         "Required Lenders" means, at any time, Lenders having Loans and unused
Commitments representing more than 50% of the sum of the total Loans and unused
Commitments at such time.

         "Restricted Payment" means any dividend or other distribution (whether
in cash, securities or other property) with respect to any shares of any class
of capital stock of the Borrower or any Subsidiary, or any payment (whether in
cash, securities or other property), including any sinking fund or similar
deposit, on account of the purchase, redemption, retirement, acquisition,
cancelation or termination of any such shares of capital stock of the Borrower
or any option, warrant or other right to acquire any such shares of capital
stock of the Borrower.

         "Restructuring" has the meaning assigned to such term in the preamble
to this Agreement.

         "S&P" means Standard & Poor's.

         "Sold Entity or Business" has the meaning assigned to such term in the
definition of Adjusted Consolidated EBITDA.

         "Statutory Reserve Rate" means a fraction (expressed as a decimal), the
numerator of which is the number one and the denominator of which is the number
one minus the aggregate of the maximum reserve percentages (including any
marginal, special, emergency or supplemental reserves) expressed as a decimal
established by the Board to which the Administrative Agent is subject (a) with
respect to the Base CD Rate, for new negotiable nonpersonal time deposits in
dollars of over $100,000 with maturities approximately equal to three months and
(b) with respect to the Adjusted LIBO Rate, for eurocurrency funding (currently
referred to as "Eurocurrency Liabilities" in Regulation D of the Board). Such
reserve percentages shall include those imposed pursuant to such Regulation D.
Eurodollar Loans shall be deemed to constitute eurocurrency funding and to be
subject to such reserve requirements without benefit of or credit for proration,
exemptions or offsets that may be available from time to time to any Lender
under such Regulation D or any comparable regulation. The Statutory Reserve Rate
shall be adjusted automatically on and as of the effective date of any change in
any reserve percentage.


<PAGE>   17

                                                                              13


         "subsidiary" means, with respect to any Person (the "parent") at any
date, any corporation, limited liability company, partnership, association or
other entity the accounts of which would be consolidated with those of the
parent in the parent's consolidated financial statements if such financial
statements were prepared in accordance with GAAP as of such date, as well as any
other corporation, limited liability company, partnership, association or other
entity (a) of which securities or other ownership interests representing more
than 50% of the equity or more than 50% of the ordinary voting power or, in the
case of a partnership, more than 50% of the general partnership interests are,
as of such date, owned, controlled or held, or (b) that is, as of such date,
otherwise Controlled, by the parent or one or more subsidiaries of the parent or
by the parent and one or more subsidiaries of the parent.

         "Subsidiary" means any subsidiary of the Borrower.

         "Taxes" means any and all present or future taxes, levies, imposts,
duties, deductions, charges or withholdings imposed by any Governmental
Authority.

         "Three-Month Secondary CD Rate" means, for any day, the secondary
market rate for three-month certificates of deposit reported as being in effect
on such day (or, if such day is not a Business Day, the next preceding Business
Day) by the Board through the public information telephone line of the Federal
Reserve Bank of New York (which rate will, under the current practices of the
Board, be published in Federal Reserve Statistical Release H.15(519) during the
week following such day) or, if such rate is not so reported on such day or such
next preceding Business Day, the average of the secondary market quotations for
three-month certificates of deposit of major money center banks in New York City
received at approximately 10:00 a.m., New York City time, on such day (or, if
such day is not a Business Day, on the next preceding Business Day) by the
Administrative Agent from three negotiable certificate of deposit dealers of
recognized standing selected by it.

         "Total Debt" means, as of any date of determination, without
duplication, the aggregate principal amount of Indebtedness of the Borrower and
the Subsidiaries outstanding as of such date, determined on a consolidated basis
in accordance with GAAP (other than Indebtedness of the type referred to in
clause (i) of the definition of the term "Indebtedness", except to the extent of
any unreimbursed drawings thereunder).

          "Transactions" has the meaning assigned to such term in the preamble
to this Agreement.

          "Type", when used in reference to any Loan or Borrowing, refers to
whether the rate of interest on such Loan, or on the Loans comprising such
Borrowing, is determined by reference to the Adjusted LIBO Rate or the Alternate
Base Rate.

         "wholly owned Subsidiary" means a Subsidiary of which securities
(except for directors' qualifying shares) or other ownership interests
representing 100% of the equity or 100% of the ordinary voting power or 100% of
the general partnership interests are, at the time any determination is being
made, owned, controlled or held by the Borrower or one or more wholly owned
Subsidiaries or by the Borrower and one or more wholly owned Subsidiaries.

         "Withdrawal Liability" means liability to a Multiemployer Plan as a
result of a complete or partial withdrawal from such Multiemployer Plan, as such
terms are defined in Part I of Subtitle E of Title IV of ERISA.

         SECTION 1.02. Terms Generally. The definitions of terms herein shall
apply equally to the singular and plural forms of the terms defined. Whenever
the context may require, any pronoun shall include the corresponding masculine,
feminine and neuter forms. The words "include", "includes" and "including" shall
be deemed to be followed by the phrase "without limitation". The word "will"
shall be construed to have the same meaning and effect as the word "shall".
Unless the



<PAGE>   18

                                                                              14


context requires otherwise (a) any definition of or reference to any
agreement, instrument or other document herein shall be construed as referring
to such agreement, instrument or other document as from time to time amended,
supplemented or otherwise modified (subject to any restrictions on such
amendments, supplements or modifications set forth herein), (b) any reference
herein to any Person shall be construed to include such Person's successors and
assigns, (c) the words "herein", "hereof" and "hereunder", and words of similar
import, shall be construed to refer to this Agreement in its entirety and not to
any particular provision hereof, (d) all references herein to Articles,
Sections, Exhibits and Schedules shall be construed to refer to Articles and
Sections of, and Exhibits and Schedules to, this Agreement and (e) the words
"asset" and "property" shall be construed to have the same meaning and effect
and to refer to any and all tangible and intangible assets and properties,
including cash, securities, accounts and contract rights.

         SECTION 1.03. Accounting Terms; GAAP. Except as otherwise expressly
provided herein, all terms of an accounting or financial nature shall be
construed in accordance with GAAP, as in effect from time to time; provided
that, if the Borrower notifies the Administrative Agent that the Borrower
requests an amendment to any provision hereof to eliminate the effect of any
change occurring after the date hereof in GAAP or in the application thereof on
the operation of such provision (or if the Administrative Agent notifies the
Borrower that the Required Lenders request an amendment to any provision hereof
for such purpose), regardless of whether any such notice is given before or
after such change in GAAP or in the application thereof, then such provision
shall be interpreted on the basis of GAAP as in effect and applied immediately
before such change shall have become effective until such notice shall have been
withdrawn or such provision amended in accordance herewith.


                                   ARTICLE II

                                   The Credits

         SECTION 2.01. Commitments. Subject to the terms and conditions set
forth herein, each Lender agrees to make Loans to the Borrower from time to time
during the Availability Period in an aggregate principal amount that will not
result in (a) such Lender's Loans exceeding such Lender's Commitment or (b) the
sum of the total Loans exceeding the total Commitments. Within the foregoing
limits and subject to the terms and conditions set forth herein, the Borrower
may borrow, prepay and reborrow Loans.

         SECTION 2.02. Loans and Borrowings. (a) Each Loan shall be made as part
of a Borrowing consisting of Loans made by the Lenders ratably in accordance
with their respective Commitments. The failure of any Lender to make any Loan
required to be made by it shall not relieve any other Lender of its obligations
hereunder.

         (b) Subject to Section 2.13, each Borrowing shall be comprised entirely
of ABR Loans or Eurodollar Loans as the Borrower may request in accordance
herewith. Each Lender at its option may make any Eurodollar Loan by causing any
domestic or foreign branch or Affiliate of such Lender to make such Loan;
provided that any exercise of such option shall not affect the obligation of the
Borrower to repay such Loan in accordance with the terms of this Agreement.

         (c) At the commencement of each Interest Period for any Eurodollar
Borrowing, such Borrowing shall be in an aggregate amount that is an integral
multiple of $1,000,000 and not less than $2,000,000. At the time that each ABR
Borrowing is made, such Borrowing shall be in an aggregate amount that is an
integral multiple of $1,000,000 and not less than $2,000,000; provided that an
ABR Borrowing may be in an aggregate amount that is equal to the entire unused
balance of the total Commitments. Borrowings of more than one Type may be
outstanding at the same time; provided that there shall not at any time be more
than a total of 10 Eurodollar Borrowings outstanding.


<PAGE>   19

                                                                              15



         (d) Notwithstanding any other provision of this Agreement, the Borrower
shall not be entitled to request, or to elect to convert or continue, any
Borrowing if the Interest Period requested with respect thereto would end after
the Maturity Date.

         SECTION 2.03. Requests for Borrowings. To request a Borrowing, the
Borrower shall notify the Administrative Agent of such request by telephone (a)
in the case of a Eurodollar Borrowing, not later than 11:30 a.m., New York City
time, three Business Days before the date of the proposed Borrowing or (b) in
the case of an ABR Borrowing, not later than 11:30 a.m., New York City time, on
the date of the proposed Borrowing. Each such telephonic Borrowing Request shall
be irrevocable and shall be confirmed promptly by hand delivery or telecopy to
the Administrative Agent of a written Borrowing Request in a form approved by
the Administrative Agent and signed by the Borrower. Each such telephonic and
written Borrowing Request shall specify the following information in compliance
with Section 2.02:

                  (i) the aggregate amount of the requested Borrowing;

                  (ii) the date of such Borrowing, which shall be a Business
         Day;

                 (iii) whether such Borrowing is to be an ABR Borrowing or a
         Eurodollar Borrowing;

                  (iv) in the case of a Eurodollar Borrowing, the initial
         Interest Period to be applicable thereto, which shall be a period
         contemplated by the definition of the term "Interest Period"; and

                  (v) the location and number of the Borrower's account to which
         funds are to be disbursed, which shall comply with the requirements of
         Section 2.06.

If no election as to the Type of Borrowing is specified, then the requested
Borrowing shall be an ABR Borrowing. If no Interest Period is specified with
respect to any requested Eurodollar Borrowing, then the Borrower shall be deemed
to have selected an Interest Period of one month's duration. Promptly following
receipt of a Borrowing Request in accordance with this Section, the
Administrative Agent shall advise each Lender of the details thereof and of the
amount of such Lender's Loan to be made as part of the requested Borrowing.

         SECTION 2.04. Funding of Borrowings. (a) Each Lender shall make each
Loan to be made by it hereunder on the proposed date thereof by wire transfer of
immediately available funds by 2:00 p.m., New York City time, to the account of
the Administrative Agent most recently designated by it for such purpose by
notice to the Lenders. The Administrative Agent will make such Loans available
to the Borrower by promptly crediting the amounts so received, in like funds, to
an account of the Borrower maintained with the Administrative Agent in New York
City and designated by the Borrower in the applicable Borrowing Request.

         (b) Unless the Administrative Agent shall have received notice from a
Lender prior to the proposed date of any Borrowing that such Lender will not
make available to the Administrative Agent such Lender's share of such
Borrowing, the Administrative Agent may assume that such Lender has made such
share available on such date in accordance with paragraph (a) of this Section
and may, in reliance upon such assumption, make available to the Borrower a
corresponding amount. In such event, if a Lender has not in fact made its share
of the applicable Borrowing available to the Administrative Agent, then the
applicable Lender and the Borrower severally agree to pay to the Administrative
Agent forthwith on demand such corresponding amount with interest thereon, for
each day from and including the date such amount is made available to the
Borrower to but excluding the date of payment to the Administrative Agent, at
(i) in the case of such Lender, the greater of the Federal Funds Effective Rate
and a rate determined by the Administrative Agent in accordance with banking
industry rules on interbank compensation or (ii) in the case of the

<PAGE>   20

                                                                              16


Borrower, the interest rate applicable to ABR Loans. If such Lender pays such
amount to the Administrative Agent, then such amount shall constitute such
Lender's Loan included in such Borrowing.

         SECTION 2.05. Interest Elections. (a) Each Borrowing initially shall be
of the Type specified in the applicable Borrowing Request and, in the case of a
Eurodollar Borrowing, shall have an initial Interest Period as specified in such
Borrowing Request. Thereafter, the Borrower may elect to convert such Borrowing
to a different Type or to continue such Borrowing and, in the case of a
Eurodollar Borrowing, may elect Interest Periods therefor, all as provided in
this Section. The Borrower may elect different options with respect to different
portions of the affected Borrowing, in which case each such portion shall be
allocated ratably among the Lenders holding the Loans comprising such Borrowing,
and the Loans comprising each such portion shall be considered a separate
Borrowing.

         (b) To make an election pursuant to this Section, the Borrower shall
notify the Administrative Agent of such election by telephone by the time that a
Borrowing Request would be required under Section 2.03 if the Borrower were
requesting a Borrowing of the Type resulting from such election to be made on
the effective date of such election. Each such telephonic Interest Election
Request shall be irrevocable and shall be confirmed promptly by hand delivery or
telecopy to the Administrative Agent of a written Interest Election Request in a
form approved by the Administrative Agent and signed by the Borrower.

         (c) Each telephonic and written Interest Election Request shall specify
the following information in compliance with Section 2.02:

                  (i) the Borrowing to which such Interest Election Request
         applies and, if different options are being elected with respect to
         different portions thereof, the portions thereof to be allocated to
         each resulting Borrowing (in which case the information to be specified
         pursuant to clauses (iii) and (iv) below shall be specified for each
         resulting Borrowing);

                  (ii) the effective date of the election made pursuant to such
         Interest Election Request, which shall be a Business Day;

                  (iii) whether the resulting Borrowing is to be an ABR
         Borrowing or a Eurodollar Borrowing; and

                  (iv) if the resulting Borrowing is a Eurodollar Borrowing, the
         Interest Period to be applicable thereto after giving effect to such
         election, which shall be a period contemplated by the definition of the
         term "Interest Period".

If any such Interest Election Request requests a Eurodollar Borrowing but does
not specify an Interest Period, then the Borrower shall be deemed to have
selected an Interest Period of one month's duration.

         (d) Promptly following receipt of an Interest Election Request, the
Administrative Agent shall advise each Lender of the details thereof and of such
Lender's portion of each resulting Borrowing.

         (e) If the Borrower fails to deliver a timely Interest Election Request
with respect to a Eurodollar Borrowing prior to the end of the Interest Period
applicable thereto, then, unless such Borrowing is repaid as provided herein, at
the end of such Interest Period such Borrowing shall be converted to an ABR
Borrowing. Notwithstanding any contrary provision hereof, if an Event of Default
has occurred and is continuing and the Administrative Agent, at the request of
the Required Lenders, so notifies the Borrower, then, so long as an Event of
Default is continuing (i) no outstanding Borrowing may be converted to or
continued as a Eurodollar Borrowing and (ii) unless

<PAGE>   21


                                                                              17

repaid, each Eurodollar Borrowing shall be converted to an ABR Borrowing at the
end of the Interest Period applicable thereto.

         SECTION 2.06. Termination and Reduction of Commitments. (a) Unless
previously terminated, the Commitments shall terminate on the Maturity Date.

         (b) The Borrower may at any time terminate, or from time to time
reduce, the Commitments; provided that (i) each reduction of the Commitments
shall be in an amount that is an integral multiple of $1,000,000 and not less
than $5,000,000 and (ii) the Borrower shall not terminate or reduce the
Commitments if, after giving effect to any concurrent prepayment of the Loans in
accordance with Section 2.08, the aggregate amount of the outstanding Loans
would exceed the total Commitments.

         (c) The Borrower shall notify the Administrative Agent of any election
to terminate or reduce the Commitments under paragraph (b) of this Section at
least three Business Days prior to the effective date of such termination or
reduction, specifying such election and the effective date thereof. Promptly
following receipt of any notice, the Administrative Agent shall advise the
Lenders of the contents thereof. Each notice delivered by the Borrower pursuant
to this Section shall be irrevocable; provided that a notice of termination of
the Commitments delivered by the Borrower may state that such notice is
conditioned upon the effectiveness of other credit facilities, in which case
such notice may be revoked by the Borrower (by notice to the Administrative
Agent on or prior to the specified effective date) if such condition is not
satisfied. Any termination or reduction of the Commitments shall be permanent.
Each reduction of the Commitments shall be made ratably among the Lenders in
accordance with their respective Commitments.

         SECTION 2.07. Repayment of Loans; Evidence of Debt. (a) The Borrower
hereby unconditionally promises to pay to the Administrative Agent for the
account of each Lender the then unpaid principal amount of each Loan on the
Maturity Date.

         (b) Each Lender shall maintain in accordance with its usual practice an
account or accounts evidencing the indebtedness of the Borrower to such Lender
resulting from each Loan made by such Lender, including the amounts of principal
and interest payable and paid to such Lender from time to time hereunder.

         (c) The Administrative Agent shall maintain accounts in which it shall
record (i) the amount of each Loan made hereunder, the Type thereof and the
Interest Period applicable thereto, (ii) the amount of any principal or interest
due and payable or to become due and payable from the Borrower to each Lender
hereunder and (iii) the amount of any sum received by the Administrative Agent
hereunder for the account of the Lenders and each Lender's share thereof.

         (d) The entries made in the accounts maintained pursuant to paragraph
(b) or (c) of this Section shall be prima facie evidence of the existence and
amounts of the obligations recorded therein; provided that the failure of any
Lender or the Administrative Agent to maintain such accounts or any error
therein shall not in any manner affect the obligation of the Borrower to repay
the Loans in accordance with the terms of this Agreement.

         (e) Any Lender may request that Loans made by it be evidenced by a
promissory note. In such event, the Borrower shall prepare, execute and deliver
to such Lender a promissory note payable to the order of such Lender (or, if
requested by such Lender, to such Lender and its registered assigns) and in a
form approved by the Administrative Agent. Thereafter, the Loans evidenced by
such promissory note and interest thereon shall at all times (including after
assignment pursuant to Section 9.04) be represented by one or more promissory
notes in such form payable to the order of the payee named therein (or, if such
promissory note is a registered note, to such payee and its registered assigns).


<PAGE>   22

                                                                              18


         SECTION 2.08. Prepayment of Loans. (a) The Borrower shall have the
right at any time and from time to time to prepay any Borrowing in whole or in
part, subject to prior notice in accordance with paragraph (b) of this Section.

         (b) The Borrower shall notify the Administrative Agent by telephone
(confirmed by telecopy) of any prepayment hereunder (i) in the case of
prepayment of a Eurodollar Borrowing, not later than 12:00 (noon), New York City
time, three Business Days before the date of prepayment or (ii) in the case of
prepayment of an ABR Borrowing, not later than 12:00 (noon), New York City time,
on the date of prepayment. Each such notice shall be irrevocable and shall
specify the prepayment date and the principal amount of each Borrowing or
portion thereof to be prepaid; provided that, if a notice of prepayment is given
in connection with a conditional notice of termination of the Commitments as
contemplated by Section 2.06, then such notice of prepayment may be revoked if
such notice of termination is revoked in accordance with Section 2.06. Promptly
following receipt of any such notice relating to a Borrowing, the Administrative
Agent shall advise the Lenders of the contents thereof. Each partial prepayment
of any Borrowing shall be in an amount that would be permitted in the case of an
advance of a Borrowing of the same Type as provided in Section 2.02. Each
prepayment of a Borrowing shall be applied ratably to the Loans included in the
prepaid Borrowing. Prepayments shall be accompanied by accrued interest to the
extent required by Section 2.10.

         SECTION 2.09. Fees. (a) The Borrower agrees to pay to the
Administrative Agent for the account of each Lender a facility fee, which shall
accrue at the Applicable Rate on the daily amount of the Commitment of such
Lender (whether used or unused) during the period from and including the
Effective Date to but excluding the date on which such Commitment terminates;
provided that, if such Lender continues to have any Loans outstanding after its
Commitment terminates, then such facility fee shall continue to accrue on the
daily amount of such Lender's Loans outstanding from and including the date on
which its Commitment terminates to but excluding the date on which such Lender
ceases to have any Loans outstanding. Accrued facility fees shall be payable in
arrears on the last day of March, June, September and December of each year and
on the date on which the Commitments terminate, commencing on the first such
date to occur after the date hereof; provided that any facility fees accruing
after the date on which the Commitments terminate shall be payable on demand.
All facility fees shall be computed on the basis of a year of 360 days and shall
be payable for the actual number of days elapsed (including the first day but
excluding the last day).

         (b) The Borrower agrees to pay to the Administrative Agent for the
account of each Lender a utilization fee which shall accrue at a rate of 0.10%
per annum on such Lender's Applicable Percentage of the amount of the Loans
outstanding hereunder on and in respect of each day on which the aggregate Loans
outstanding exceed 50% of the aggregate amount of the Lenders' Commitments on
such day; provided that, if such Lender continues to have any Loans outstanding
after its Commitment terminates, then such utilization fee shall continue to
accrue on the daily amount of such Lender's Loans outstanding from and including
the date on which its Commitment terminates to but excluding the date on which
such Lender ceases to have any Loans outstanding. The utilization fee shall be
payable in arrears on the last day of March, June, September and December for
each year and on the date on which the Commitments have been terminated and all
outstanding Loans repaid, commencing on the first such date to occur after the
date hereof. All utilization fees shall be computed on the basis of a year of
360 days and shall be payable for the actual number of days elapsed (including
the first day but excluding the last day).

         (c) The Borrower agrees to pay to the Administrative Agent, the
Documentation Agent and the Syndication Agent, for their own respective
accounts, fees payable in the amounts and at the times specified in the Fee
Letters dated September 19, 1997, between PCA, Capstone and the Administrative
Agent, the Documentation Agent and the Syndication Agent, respectively.


<PAGE>   23


                                                                              19


         (d) All fees payable hereunder shall be paid on the dates due, in
immediately available funds, to the Administrative Agent for distribution, in
the case of facility fees, to the Lenders. Fees paid shall not be refundable
under any circumstances.

         SECTION 2.10. Interest. (a) The Loans comprising each ABR Borrowing
shall bear interest at the Alternate Base Rate; provided that, in the event that
the Merger shall not have been consummated on or prior to the fifth Business Day
following the Closing Date, then from and including the Effective Date to but
excluding the date on which the Merger is consummated, the Loans comprising each
ABR Borrowing outstanding during such period shall bear interest at the
Alternate Base Rate plus 1.3125% per annum.

         (b) The Loans comprising each Eurodollar Borrowing shall bear interest
at the Adjusted LIBO Rate for the Interest Period in effect for such Borrowing
plus the Applicable Rate.

         (c) Notwithstanding the foregoing, if any principal of or interest on
any Loan or any fee or other amount payable by the Borrower hereunder is not
paid when due, whether at stated maturity, upon acceleration or otherwise, such
overdue amount shall bear interest, after as well as before judgment, at a rate
per annum equal to (i) in the case of overdue principal of any Loan, 2% plus the
rate otherwise applicable to such Loan as provided in the preceding paragraphs
of this Section or (ii) in the case of any other amount, 2% plus the Alternate
Base Rate.

         (d) Accrued interest on each Loan shall be payable in arrears on each
Interest Payment Date for such Loan and upon termination of the Commitments;
provided that (i) interest accrued pursuant to paragraph (c) of this Section
shall be payable on demand, (ii) in the event of any repayment or prepayment of
any Loan (other than a prepayment of an ABR Loan prior to the end of the
Availability Period), accrued interest on the principal amount repaid or prepaid
shall be payable on the date of such repayment or prepayment and (iii) in the
event of any conversion of any Eurodollar Loan prior to the end of the current
Interest Period therefor, accrued interest on such Loan shall be payable on the
effective date of such conversion.

         (e) All interest hereunder shall be computed on the basis of a year of
360 days, except that interest computed by reference to the Alternate Base Rate
at times when the Alternate Base Rate is based on the Prime Rate shall be
computed on the basis of a year of 365 days (or 366 days in a leap year), and in
each case shall be payable for the actual number of days elapsed (including the
first day but excluding the last day). The applicable Alternate Base Rate,
Adjusted LIBO Rate or LIBO Rate shall be determined by the Administrative Agent,
and such determination shall be conclusive absent manifest error.

         SECTION 2.11. Alternate Rate of Interest. If prior to the commencement
of any Interest Period for a Eurodollar Borrowing:

                  (a) the Administrative Agent determines (which determination
         shall be conclusive absent manifest error) that adequate and reasonable
         means do not exist for ascertaining the LIBO Rate for such Interest
         Period; or

                  (b) the Administrative Agent is advised by the Required
         Lenders that the Adjusted LIBO Rate for such Interest Period will not
         adequately and fairly reflect the cost to such Lenders of making or
         maintaining their Loans included in such Borrowing for such Interest
         Period;

then the Administrative Agent shall give notice thereof to the Borrower and the
Lenders by telephone or telecopy as promptly as practicable thereafter and,
until the Administrative Agent notifies the Borrower and the Lenders that the
circumstances giving rise to such notice no longer exist, (i) any Interest
Election Request that requests the conversion of any Borrowing to, or
continuation of any Borrowing as, a Eurodollar Borrowing shall be ineffective
and (ii) if any

<PAGE>   24

                                                                              20


Borrowing Request requests a Eurodollar Borrowing, such Borrowing shall be made
as an ABR Borrowing; provided that if the circumstances giving rise to such
notice affect only one Type of Borrowings, then the other Type of Borrowings
shall be permitted.

         SECTION 2.12. Increased Costs. (a) If any Change in Law shall:

                  (i) impose, modify or deem applicable any reserve, special
         deposit or similar requirement against assets of, deposits with or for
         the account of, or credit extended by, any Lender (except any such
         reserve requirement reflected in the Adjusted LIBO Rate); or

                  (ii) impose on any Lender or the London interbank market any
         other condition affecting this Agreement or Eurodollar Loans made by
         such Lender;

and the result of any of the foregoing shall be to increase the cost to such
Lender of making or maintaining any Eurodollar Loan (or of maintaining its
obligation to make any such Loan) or to reduce the amount of any sum received or
receivable by such Lender hereunder (whether of principal, interest or
otherwise), then the Borrower will pay to such Lender such additional amount or
amounts as will compensate such Lender for such additional costs incurred or
reduction suffered.

         (b) If any Lender determines that any Change in Law regarding capital
requirements has or would have the effect of reducing the rate of return on such
Lender's capital or on the capital of such Lender's holding company, if any, as
a consequence of this Agreement or the Loans made by such Lender, to a level
below that which such Lender or such Lender's holding company could have
achieved but for such Change in Law (taking into consideration such Lender's
policies and the policies of such Lender's holding company with respect to
capital adequacy), then from time to time the Borrower will pay to such Lender
such additional amount or amounts as will compensate such Lender or such
Lender's holding company for any such reduction suffered.

         (c) A certificate of a Lender setting forth the amount or amounts
necessary to compensate such Lender or its holding company, as the case may be,
as specified in paragraph (a) or (b) of this Section shall be delivered to the
Borrower and shall be conclusive absent manifest error. The Borrower shall pay
such Lender the amount shown as due on any such certificate within 10 days after
receipt thereof.

         (d) Failure or delay on the part of any Lender to demand compensation
pursuant to this Section shall not constitute a waiver of such Lender's right to
demand such compensation; provided that the Borrower shall not be required to
compensate a Lender pursuant to this Section for any increased costs or
reductions incurred more than 270 days prior to the date that such Lender
notifies the Borrower of the Change in Law giving rise to such increased costs
or reductions and of such Lender's intention to claim compensation therefor;
provided further that, if the Change in Law giving rise to such increased costs
or reductions is retroactive, then the 270-day period referred to above shall be
extended to include the period of retroactive effect thereof.

         SECTION 2.13. Break Funding Payments. In the event of (a) the payment
of any principal of any Eurodollar Loan other than on the last day of an
Interest Period applicable thereto (including as a result of an Event of
Default), (b) the conversion of any Eurodollar Loan other than on the last day
of the Interest Period applicable thereto, (c) the failure to borrow, convert,
continue or prepay any Loan on the date specified in any notice delivered
pursuant hereto (regardless of whether such notice may be revoked under Section
2.08(b) and is revoked in accordance therewith) or (d) the assignment of any
Eurodollar Loan other than on the last day of the Interest Period applicable
thereto as a result of a request by the Borrower pursuant to Section 2.16, then,
in any such event, the Borrower shall compensate each Lender for the loss, cost
and expense attributable to such event. In the case of a Eurodollar Loan, such
loss, cost or expense to any Lender shall be deemed to include an amount
determined by such Lender to be the excess, if any, of (i) the amount of
interest which would have accrued on the principal amount of such Loan had such
event not occurred, at the

<PAGE>   25

                                                                              21


Adjusted LIBO Rate that would have been applicable to such Loan, for the period
from the date of such event to the last day of the then current Interest Period
therefor (or, in the case of a failure to borrow, convert or continue, for the
period that would have been the Interest Period for such Loan), over (ii) the
amount of interest which would accrue on such principal amount for such period
at the interest rate which such Lender would bid were it to bid, at the
commencement of such period, for dollar deposits of a comparable amount and
period from other banks in the eurodollar market. A certificate of any Lender
setting forth any amount or amounts that such Lender is entitled to receive
pursuant to this Section shall be delivered to the Borrower and shall be
conclusive absent manifest error. The Borrower shall pay such Lender the amount
shown as due on any such certificate within 10 days after receipt thereof.

         SECTION 2.14. Taxes. (a) Any and all payments by or on account of any
obligation of the Borrower hereunder shall be made free and clear of and without
deduction for any Indemnified Taxes or Other Taxes; provided that if the
Borrower shall be required to deduct any Indemnified Taxes or Other Taxes from
such payments, then (i) the sum payable shall be increased as necessary so that
after making all required deductions (including deductions applicable to
additional sums payable under this Section) the Administrative Agent or Lender
(as the case may be) receives an amount equal to the sum it would have received
had no such deductions been made, (ii) the Borrower shall make such deductions
and (iii) the Borrower shall pay the full amount deducted to the relevant
Governmental Authority in accordance with applicable law.

         (b) In addition, the Borrower shall pay any Other Taxes to the relevant
Governmental Authority in accordance with applicable law.

         (c) The Borrower shall indemnify the Administrative Agent and each
Lender within 10 days after written demand therefor, for the full amount of any
Indemnified Taxes or Other Taxes paid by the Administrative Agent or such
Lender, as the case may be, on or with respect to any payment by or on account
of any obligation of the Borrower hereunder (including Indemnified Taxes or
Other Taxes imposed or asserted on or attributable to amounts payable under this
Section) and any penalties, interest and reasonable expenses arising therefrom
or with respect thereto, whether or not such Indemnified Taxes or Other Taxes
were correctly or legally imposed or asserted by the relevant Governmental
Authority. A certificate as to the amount of such payment or liability delivered
to the Borrower by a Lender, or by the Administrative Agent on its own behalf or
on behalf of a Lender, shall be conclusive absent manifest error.

         (d) As soon as practicable after any payment of Indemnified Taxes or
Other Taxes by the Borrower to a Governmental Authority, the Borrower shall
deliver to the Administrative Agent the original or a certified copy of a
receipt issued by such Governmental Authority evidencing such payment, a copy of
the return reporting such payment or other evidence of such payment reasonably
satisfactory to the Administrative Agent.

         (e) Any Foreign Lender that is entitled to an exemption from or
reduction of withholding tax under the law of the jurisdiction in which the
Borrower is located, or any treaty to which such jurisdiction is a party, with
respect to payments under this Agreement shall deliver to the Borrower (with a
copy to the Administrative Agent), at the time or times prescribed by applicable
law, such properly completed and executed documentation prescribed by applicable
law or reasonably requested by the Borrower as will permit such payments to be
made without withholding or at a reduced rate.

         SECTION 2.15. Payments Generally; Pro Rata Treatment; Sharing of
Set-offs. (a) The Borrower shall make each payment required to be made by it
hereunder (whether of principal, interest or fees, or of amounts payable under
Section 2.12, 2.13 or 2.14, or otherwise) prior to 12:00 noon, New York City
time, on the date when due, in immediately available funds, without set-off or
counterclaim. Any amounts received after such time on any date may, in the
discretion of the Administrative Agent, be deemed to have been received on the
next succeeding Business Day for

<PAGE>   26

                                                                              22


purposes of calculating interest thereon. All such payments shall be made to the
Administrative Agent at its offices at One Chase Manhattan Plaza, New York, New
York, except that payments pursuant to Sections 2.12, 2.13, 2.14 and 9.03 shall
be made directly to the Persons entitled thereto. The Administrative Agent shall
distribute any such payments received by it for the account of any other Person
to the appropriate recipient promptly following receipt thereof. If any payment
hereunder shall be due on a day that is not a Business Day, the date for payment
shall be extended to the next succeeding Business Day, and, in the case of any
payment accruing interest, interest thereon shall be payable for the period of
such extension. All payments hereunder shall be made in dollars.

         (b) If at any time insufficient funds are received by and available to
the Administrative Agent to pay fully all amounts of principal, interest and
fees then due hereunder, such funds shall be applied (i) first, towards payment
of interest and fees then due hereunder, ratably among the parties entitled
thereto in accordance with the amounts of interest and fees then due to such
parties, and (ii) second, towards payment of principal then due hereunder,
ratably among the parties entitled thereto in accordance with the amounts of
principal then due to such parties.

         (c) If any Lender shall, by exercising any right of set-off or
counterclaim or otherwise, obtain payment in respect of any principal of or
interest on any of its Loans resulting in such Lender receiving payment of a
greater proportion of the aggregate amount of its Loans and accrued interest
thereon than the proportion received by any other Lender, then the Lender
receiving such greater proportion shall purchase (for cash at face value)
participations in the Loans of other Lenders to the extent necessary so that the
benefit of all such payments shall be shared by the Lenders ratably in
accordance with the aggregate amount of principal of and accrued interest on
their respective Loans; provided that (i) if any such participations are
purchased and all or any portion of the payment giving rise thereto is
recovered, such participations shall be rescinded and the purchase price
restored to the extent of such recovery, without interest, and (ii) the
provisions of this paragraph shall not be construed to apply to any payment made
by the Borrower pursuant to and in accordance with the express terms of this
Agreement or any payment obtained by a Lender as consideration for the
assignment of or sale of a participation in any of its Loans to any assignee or
participant, other than to the Borrower or any Subsidiary or Affiliate thereof
(as to which the provisions of this paragraph shall apply). The Borrower
consents to the foregoing and agrees, to the extent it may effectively do so
under applicable law, that any Lender acquiring a participation pursuant to the
foregoing arrangements may exercise against the Borrower rights of set-off and
counterclaim with respect to such participation as fully as if such Lender were
a direct creditor of the Borrower in the amount of such participation.

         (d) Unless the Administrative Agent shall have received notice from the
Borrower prior to the date on which any payment is due to the Administrative
Agent for the account of the Lenders hereunder that the Borrower will not make
such payment, the Administrative Agent may assume that the Borrower has made
such payment on such date in accordance herewith and may, in reliance upon such
assumption, distribute to the Lenders the amount due. In such event, if the
Borrower has not in fact made such payment, then each of the Lenders severally
agrees to repay to the Administrative Agent forthwith on demand the amount so
distributed to such Lender with interest thereon, for each day from and
including the date such amount is distributed to it to but excluding the date of
payment to the Administrative Agent, at the greater of the Federal Funds
Effective Rate and a rate determined by the Administrative Agent in accordance
with banking industry rules on interbank compensation.

         (e) If any Lender shall fail to make any payment required to be made by
it pursuant to Section 2.04(b) or 2.15(d), then the Administrative Agent may, in
its discretion (notwithstanding any contrary provision hereof), apply any
amounts thereafter received by the Administrative Agent for the account of such
Lender to satisfy such Lender's obligations under such Sections until all such
unsatisfied obligations are fully paid.


<PAGE>   27

                                                                              23


         SECTION 2.16. Mitigation Obligations; Replacement of Lenders. (a) If
any Lender requests compensation under Section 2.12, or if the Borrower is
required to pay any additional amount to any Lender or any Governmental
Authority for the account of any Lender pursuant to Section 2.14, then such
Lender shall use reasonable efforts to designate a different lending office for
funding or booking its Loans hereunder or to assign its rights and obligations
hereunder to another of its offices, branches or affiliates, if, in the judgment
of such Lender, such designation or assignment (i) would eliminate or reduce
amounts payable pursuant to Section 2.12 or 2.14, as the case may be, in the
future and (ii) would not subject such Lender to any unreimbursed cost or
expense and would not otherwise be disadvantageous to such Lender. The Borrower
hereby agrees to pay all reasonable costs and expenses incurred by any Lender in
connection with any such designation or assignment.

         (b) If any Lender requests compensation under Section 2.12, or if the
Borrower is required to pay any additional amount to any Lender or any
Governmental Authority for the account of any Lender pursuant to Section 2.14,
or if any Lender defaults in its obligation to fund Loans hereunder, then the
Borrower may, at its sole expense and effort, upon notice to such Lender and the
Administrative Agent, require such Lender to assign and delegate, without
recourse (in accordance with and subject to the restrictions contained in
Section 9.04), all its interests, rights and obligations under this Agreement to
an assignee that shall assume such obligations (which assignee may be another
Lender, if a Lender accepts such assignment); provided that (i) the Borrower
shall have received the prior written consent of the Administrative Agent, which
consent shall not unreasonably be withheld, (ii) such Lender shall have received
payment of an amount equal to the outstanding principal of its Loans, accrued
interest thereon, accrued fees and all other amounts payable to it hereunder,
from the assignee (to the extent of such outstanding principal and accrued
interest and fees) or the Borrower (in the case of all other amounts) and (iii)
in the case of any such assignment resulting from a claim for compensation under
Section 2.12 or payments required to be made pursuant to Section 2.14, such
assignment will result in a reduction in such compensation or payments. A Lender
shall not be required to make any such assignment and delegation if, prior
thereto, as a result of a waiver by such Lender or otherwise, the circumstances
entitling the Borrower to require such assignment and delegation cease to apply.


                                   ARTICLE III

                         Representations and Warranties

         The Borrower represents and warrants to the Lenders that:

         SECTION 3.01. Organization; Powers. Each of the Borrower and the
Subsidiaries is duly organized, validly existing and in good standing under the
laws of the jurisdiction of its organization, has all requisite power and
authority to carry on its business as now conducted and, except where the
failure to do so, individually or in the aggregate, could not reasonably be
expected to result in a Material Adverse Effect, is qualified to do business in,
and is in good standing in, every jurisdiction where such qualification is
required.

         SECTION 3.02. Authorization; Enforceability. The Transactions are
within the Borrower's corporate powers and have been duly authorized by all
necessary corporate and, if required, stockholder action. This Agreement has
been duly executed and delivered by the Borrower and constitutes a legal, valid
and binding obligation of the Borrower, enforceable in accordance with its
terms.

         SECTION 3.03. Governmental Approvals; No Conflicts. The Transactions
(a) do not require any consent or approval of, registration or filing with, or
any other action by, any Governmental Authority, except such as have been
obtained or made and are in full force and effect, (b) will not violate any
applicable law or regulation or the charter, by-laws or other organizational

<PAGE>   28

                                                                              24


documents of the Borrower or any of its Subsidiaries or any order of any
Governmental Authority, (c) will not violate or result in a default under any
indenture, agreement or other instrument binding upon the Borrower or any of the
Subsidiaries or its assets, or give rise to a right thereunder to require any
payment to be made by the Borrower or any of the Subsidiaries, and (d) will not
result in the creation or imposition of any Lien on any asset of the Borrower or
any of the Subsidiaries.

         SECTION 3.04. Financial Condition; No Material Adverse Change. (a) The
Borrower has heretofore furnished to the Lenders its consolidated balance sheet
and statements of income, stockholders equity and cash flows (i) as of and for
the fiscal year ended December 31, 1996, reported on by Ernst & Young LLP,
independent public accountants, and (ii) as of and for the fiscal quarter and
the portion of the fiscal year ended June 30, 1997, certified by its chief
financial officer. Such financial statements present fairly, in all material
respects, the financial position and results of operations and cash flows of the
Borrower and the consolidated Subsidiaries as of such dates and for such periods
in accordance with GAAP, subject to year-end audit adjustments and the absence
of footnotes in the case of the statements referred to in clause (ii) above.

         (b) The Borrower has heretofore delivered to the Lenders its unaudited
pro forma consolidated financial statements as of June 30, 1997, prepared giving
effect to the Merger and the other Transactions as if they had occurred on such
date. Such pro forma financial statements have been prepared in good faith by
the Borrower, based on the assumptions used to prepare the pro forma financial
information contained in the Information Memorandum (which assumptions are
believed by the Borrower on the date hereof to be reasonable), are based on the
best information available to the Borrower as of the date of delivery thereof,
accurately reflect all adjustments required to be made to give effect to the
Merger and the other Transactions and present fairly on a pro forma basis the
estimated consolidated financial position of the Borrower and its consolidated
Subsidiaries as of June 30, 1997, assuming that the Merger and the other
Transaction had actually occurred at June 30, 1997.

         (c) Since December 31, 1996, there has been no material adverse change
in or affecting the business, operations, property, prospects or condition,
financial or otherwise, of the Borrower and the Subsidiaries, taken as a whole.

         SECTION 3.05. Properties. (a) Each of the Borrower and the Subsidiaries
has good title to, or valid leasehold interests in, all its real and personal
property material to its business, except for minor defects in title that do not
interfere with its ability to conduct its business as currently conducted or to
utilize such properties for their intended purposes.

         (b) Each of the Borrower and the Subsidiaries owns, or is licensed to
use, all trademarks, tradenames, copyrights, patents and other intellectual
property material to its business, and the use thereof by the Borrower and the
Subsidiaries does not infringe upon the rights of any other Person, except for
any such infringements that, individually or in the aggregate, could not
reasonably be expected to result in a Material Adverse Effect.

         SECTION 3.06. Litigation and Environmental Matters. (a) There are no
actions, suits or proceedings by or before any arbitrator or Governmental
Authority pending against or, to the knowledge of the Borrower, threatened
against or affecting the Borrower or any of the Subsidiaries (i) as to which
there is a reasonable possibility of an adverse determination and that, if
adversely determined, could reasonably be expected, individually or in the
aggregate, to result in a Material Adverse Effect (other than the Disclosed
Matters) or (ii) that involve this Agreement or the Transactions.

         (b) Except for the Disclosed Matters and except with respect to any
other matters that, individually or in the aggregate, could not reasonably be
expected to result in a Material Adverse Effect, neither the Borrower nor any of
the Subsidiaries (i) has failed to comply with any Environmental Law or to
obtain, maintain or comply with any permit, license or other approval


<PAGE>   29

                                                                              25


required under any Environmental Law, (ii) has become subject to any
Environmental Liability, (iii) has received notice of any claim with respect to
any Environmental Liability or (iv) knows of any basis for any Environmental
Liability.

         (c) Since the date of this Agreement, there has been no change in the
status of the Disclosed Matters that, individually or in the aggregate, has
resulted in, or materially increased the likelihood of, a Material Adverse
Effect.

         SECTION 3.07. Compliance with Laws and Agreements. Each of the Borrower
and the Subsidiaries is in compliance with all laws, regulations and orders of
any Governmental Authority applicable to it or its property and all indentures,
agreements and other instruments binding upon it or its property, except where
the failure to do so, individually or in the aggregate, could not reasonably be
expected to result in a Material Adverse Effect. No Default has occurred and is
continuing.

         SECTION 3.08. Investment and Holding Company Status. Neither the
Borrower nor any of the Subsidiaries is (a) an "investment company" as defined
in, or subject to regulation under, the Investment Company Act of 1940 or (b) a
"holding company" as defined in, or subject to regulation under, the Public
Utility Holding Company Act of 1935.

         SECTION 3.09. Taxes. Each of the Borrower and the Subsidiaries has
timely filed or caused to be filed all Tax returns and reports required to have
been filed and has paid or caused to be paid all Taxes required to have been
paid by it, except (a) Taxes that are being contested in good faith by
appropriate proceedings and for which the Borrower or such Subsidiary, as
applicable, has set aside on its books adequate reserves or (b) to the extent
that the failure to do so could not reasonably be expected to result in a
Material Adverse Effect.

         SECTION 3.10. ERISA. No ERISA Event has occurred or is reasonably
expected to occur that, when taken together with all other such ERISA Events for
which liability is reasonably expected to occur, could reasonably be expected to
result in a Material Adverse Effect. The present value of all accumulated
benefit obligations under each Plan (based on the assumptions used for purposes
of Statement of Financial Accounting Standards No. 87) did not, as of the date
of the most recent financial statements reflecting such amounts, exceed the fair
market value of the assets of such Plan, and the present value of all
accumulated benefit obligations of all underfunded Plans (based on the
assumptions used for purposes of Statement of Financial Accounting Standards No.
87) did not, as of the date of the most recent financial statements reflecting
such amounts, exceed the fair market value of the assets of all such underfunded
Plans.

         SECTION 3.11. Disclosure. Each of Capstone and PCA has disclosed to the
Lenders all agreements, instruments and corporate or other restrictions to which
it or any of its subsidiaries is subject, and all other matters known to it,
that, individually or in the aggregate, could reasonably be expected to result
in a Material Adverse Effect. Neither the Information Memorandum nor any of the
other reports, financial statements, certificates or other information furnished
by or on behalf of Capstone or PCA to the Administrative Agent or any Lender in
connection with the negotiation of this Agreement or delivered hereunder (as
modified or supplemented by other information so furnished) contains any
material misstatement of fact or omits to state any material fact necessary to
make the statements therein, in the light of the circumstances under which they
were made, not misleading; provided that, with respect to projected financial
information, the Borrower represents only that such information was prepared in
good faith based upon assumptions believed to be reasonable at the time.

         SECTION 3.12. Representations and Warranties of Capstone. On the date
the Merger is consummated, Capstone hereby represents and warrants to the
Lenders that each of the representations and warranties set forth in this
Article III are true and correct with respect to Capstone and its subsidiaries,
as if Capstone were named as the Borrower therein; provided,

<PAGE>   30

                                                                              26


however, that for purposes of this Section 3.12, the dates referred to in
clauses (i) and (ii) of Section 3.04(a) shall be deemed to be June 30, 1997 and
September 30, 1997, respectively, and the independent public accountants
referred to in Section 3.04(a) shall be deemed to be Arthur Andersen LLP.


                                   ARTICLE IV

                                   Conditions

         SECTION 4.01. Effective Date. The obligations of the Lenders to make
Loans hereunder shall not become effective until the date on which each of the
following conditions is satisfied (or waived in accordance with Section 9.02):

                  (a) The Administrative Agent (or its counsel) shall have
         received from each party hereto either (i) a counterpart of this
         Agreement signed on behalf of such party or (ii) written evidence
         satisfactory to the Administrative Agent (which may include telecopy
         transmission of a signed signature page of this Agreement) that such
         party has signed a counterpart of this Agreement.

                  (b) The Administrative Agent shall have received favorable
         written opinions (addressed to the Administrative Agent and the Lenders
         and dated the Effective Date) of (i) John W. MacKenzie, deputy general
         counsel for PCA, substantially in the form of Exhibit B and (ii)
         Harwell, Howard, Hyne, Gabbert & Manner, counsel for Capstone,
         substantially in the form of Exhibit C, and in each case covering such
         other matters relating to such Persons, this Agreement or the
         Transactions as the Required Lenders shall reasonably request. PCA and
         Capstone hereby request such counsel to deliver such opinions.

                  (c) The Administrative Agent shall have received such
         documents and certificates as the Administrative Agent or its counsel
         may reasonably request relating to the organization, existence and good
         standing of PCA and Capstone, the authorization of the Transactions and
         any other legal matters relating to PCA and Capstone, this Agreement or
         the Transactions, all in form and substance satisfactory to the
         Administrative Agent and its counsel.

                  (d) The Administrative Agent shall have received a
         certificate, dated the Effective Date and signed by the President, a
         Vice President or a Financial Officer of PCA, confirming compliance
         with the conditions set forth in paragraphs (a) and (b) of Section
         4.02.

                  (e) The shareholders of Capstone and Beverly shall have
         approved the consummation of the Merger and any items or actions that
         are conditions precedent to the Merger submitted for the approval of
         such shareholders.

                  (f) The Lenders shall have received (i) a copy of a private
         letter ruling by the Internal Revenue Service confirming the tax-free
         status of the Restructuring and the Distribution and (ii) an opinion
         (addressed to PCA and Capstone and dated the Effective Date) of Ernst &
         Young LLP or Caplin & Drysdale, Chartered, to the effect that the
         Merger will qualify as a reorganization within the meaning of Section
         368(a) of the Code and substantially in the form of Exhibit D.

                  (g) All applicable waiting periods (including under the
         Hart-Scott-Rodino Antitrust Improvements Act of 1976) shall have
         expired and there shall be no litigation or administrative proceedings,
         actual or threatened, that, in the reasonable judgment of the

<PAGE>   31

                                                                              27


         Lenders, involve a reasonable possibility of prohibiting or imposing
         burdensome conditions on the Transactions.

                  (h) The Restructuring and the Distribution shall have occurred
         or shall occur substantially simultaneously with the making of the
         first Loan and the Intercompany Loan shall have been repaid in full or
         otherwise discharged.

                  (i) Each of the other conditions precedent to the Merger
         contained in the Merger Agreement or any other documents relating
         thereto shall have been satisfied or waived in writing by Beverly or
         Capstone or both, as appropriate; the Merger shall be scheduled to
         close within two Business Days after the Effective Date, as
         contemplated by Section 9.01 of the Merger Agreement; and the Merger
         Agreement shall not have been modified or waived in any material
         respect from the form previously provided to the Lenders without the
         consent of the Lenders.

                  (j) The Lenders shall have received a pro forma consolidated
         balance sheet of the Borrower as of a recent date (which date shall be
         no earlier than June 30, 1997), after giving effect to the Transactions
         and the consummation of the other transactions contemplated hereby,
         which shall not be materially inconsistent with the forecasts
         previously provided to the Lenders.

                  (k) The Administrative Agent shall have received all fees and
         other amounts due and payable on or prior to the Effective Date,
         including, to the extent invoiced, reimbursement or payment of all
         out-of-pocket expenses required to be reimbursed or paid by the
         Borrower hereunder.

                  (l) The Guarantee Agreement shall have been duly executed by
         the parties thereto and delivered to the Administrative Agent.

                  (m) The Indemnity, Subrogation and Contribution Agreement
         shall have been duly executed by the parties thereto and delivered to
         the Administrative Agent.

The Administrative Agent shall notify the Borrower and the Lenders of the
Effective Date, and such notice shall be conclusive and binding. Notwithstanding
the foregoing, the obligations of the Lenders to make Loans hereunder shall not
become effective unless each of the foregoing conditions is satisfied (or waived
pursuant to Section 9.02) at or prior to 3:00 p.m., New York City time, on
December 31, 1997 (and, in the event such conditions are not so satisfied or
waived, the Commitments shall terminate at such time).

         SECTION 4.02. Each Credit Event. The obligation of each Lender to make
 a Loan on the occasion of any Borrowing is subject to the satisfaction of the
following conditions:

                  (a) The representations and warranties set forth in this
         Agreement shall be true and correct on and as of the date of such
         Borrowing.

                  (b) At the time of and immediately after giving effect to such
         Borrowing, no Default shall have occurred and be continuing.

Each Borrowing shall be deemed to constitute a representation and warranty by
the Borrower on the date thereof as to the matters specified in paragraphs (a)
and (b) of this Section.

         SECTION 4.03. Subsequent Credit Events. The obligation of each Lender
to make a Loan on the occasion of any Borrowing occurring after the Effective
Date is subject to the conditions that the Merger shall have been consummated
and that all amounts due and payable in respect of the Existing Credit Agreement
shall have been, or shall simultaneously be, repaid and the commitments,

<PAGE>   32

                                                                              28


if any, of the lenders thereunder shall have terminated and all liens in
connection therewith shall have been discharged and released.


                                    ARTICLE V

                              Affirmative Covenants

         Until the Commitments have expired or been terminated and the principal
of and interest on each Loan and all fees payable hereunder shall have been paid
in full, the Borrower covenants and agrees with the Lenders that:

         SECTION 5.01. Financial Statements and Other Information. The Borrower
will furnish to the Lenders through the Administrative Agent:

                  (a) within 90 days after the end of each fiscal year of the
         Borrower, its audited consolidated balance sheet and related statements
         of operations, stockholders' equity and cash flows as of the end of and
         for such year, setting forth in each case in comparative form the
         figures for the previous fiscal year, all reported on by Arthur
         Andersen, L.L.P. or other independent public accountants of recognized
         national standing (without a "going concern" or like qualification or
         exception and without any qualification or exception as to the scope of
         such audit) to the effect that such consolidated financial statements
         present fairly in all material respects the financial condition and
         results of operations of the Borrower and the consolidated Subsidiaries
         on a consolidated basis in accordance with GAAP consistently applied;

                  (b) within 45 days after the end of each of the first three
         fiscal quarters of each fiscal year of the Borrower, its consolidated
         balance sheet and related statements of operations, stockholders'
         equity and cash flows as of the end of and for such fiscal quarter and
         the then elapsed portion of the fiscal year, setting forth in each case
         in comparative form the figures for the corresponding period or periods
         of (or, in the case of the balance sheet, as of the end of) the
         previous fiscal year, all certified by one of its Financial Officers as
         presenting fairly in all material respects the financial condition and
         results of operations of the Borrower and the consolidated Subsidiaries
         on a consolidated basis in accordance with GAAP consistently applied,
         subject to normal year-end audit adjustments and the absence of
         footnotes;

                  (c) concurrently with any delivery of financial statements
         under clause (a) or (b) above, a certificate of a Financial Officer of
         the Borrower (i) certifying as to whether a Default has occurred and,
         if a Default has occurred, specifying the details thereof and any
         action taken or proposed to be taken with respect thereto, (ii) setting
         forth reasonably detailed calculations demonstrating compliance with
         Sections 6.09, 6.10 and 6.11 and (iii) stating whether any change in
         GAAP or in the application thereof has occurred since the date of the
         audited financial statements referred to in Section 3.04(a) and, if any
         such change has occurred, specifying the effect of such change on the
         financial statements accompanying such certificate;

                  (d) concurrently with any delivery of financial statements
         under clause (a) above, a certificate of the accounting firm that
         reported on such financial statements stating whether they obtained
         knowledge during the course of their examination of such financial
         statements of any Default (which certificate may be limited to the
         extent required by accounting rules or guidelines);

                  (e) promptly after the same become publicly available, copies
         of all periodic and other reports, proxy statements and other materials
         filed by the Borrower or any Subsidiary with the Securities and
         Exchange Commission, or any Governmental Authority succeeding


<PAGE>   33

                                                                              29


         to any or all of the functions of said Commission, or with any
         national securities exchange, or distributed by the Borrower to its
         shareholders generally, as the case may be; and

                  (f) promptly following any request therefor, such other
         information regarding the operations, business affairs and financial
         condition of the Borrower or any Subsidiary, or compliance with the
         terms of this Agreement, as the Administrative Agent or any Lender may
         reasonably request.

         SECTION 5.02. Notices of Material Events. The Borrower will furnish to
the Administrative Agent and each Lender prompt written notice of the following:

                  (a) the occurrence of any Default;

                  (b) the filing or commencement of any action, suit or
         proceeding by or before any arbitrator or Governmental Authority
         against or affecting the Borrower or any Affiliate thereof that, if
         adversely determined, could reasonably be expected to result in a
         Material Adverse Effect;

                  (c) the occurrence of any ERISA Event that, alone or together
         with any other ERISA Events that have occurred, could reasonably be
         expected to result in liability of the Borrower and the Subsidiaries in
         an aggregate amount exceeding $10,000,000; and

                  (d) any other development that results in, or could reasonably
         be expected to result in, a Material Adverse Effect.

Each notice delivered under this Section shall be accompanied by a statement of
a Financial Officer or other executive officer of the Borrower setting forth the
details of the event or development requiring such notice and any action taken
or proposed to be taken with respect thereto.

         SECTION 5.03. Existence; Conduct of Business. The Borrower will, and
will cause each of the Subsidiaries to, do or cause to be done all things
necessary to preserve, renew and keep in full force and effect its legal
existence and the rights, licenses, permits, privileges and franchises material
to the conduct of its business; provided that the foregoing shall not prohibit
any merger, consolidation, liquidation or dissolution permitted under Section
6.03.

         SECTION 5.04. Payment of Obligations. The Borrower will, and will cause
each of the Subsidiaries to, pay its obligations, including Tax liabilities,
that, if not paid, could result in a Material Adverse Effect before the same
shall become delinquent or in default, except where (a) the validity or amount
thereof is being contested in good faith by appropriate proceedings, (b) the
Borrower or such Subsidiary has set aside on its books adequate reserves with
respect thereto in accordance with GAAP and (c) the failure to make payment
pending such contest could not reasonably be expected to result in a Material
Adverse Effect.

         SECTION 5.05. Maintenance of Properties; Insurance. The Borrower will,
and will cause each of the Subsidiaries to, (a) keep and maintain all property
material to the conduct of its business in good working order and condition,
ordinary wear and tear excepted, and (b) maintain, with financially sound and
reputable insurance companies, insurance in such amounts and against such risks
as are customarily maintained by companies engaged in the same or similar
businesses operating in the same or similar locations.

         SECTION 5.06. Books and Records; Inspection Rights. The Borrower will,
and will cause each of the Subsidiaries to, keep proper books of record and
account in which full, true and correct entries are made of all dealings and
transactions in relation to its business and activities. The Borrower will, and
will cause each of the Subsidiaries to, permit any representatives designated by
the Administrative Agent or any Lender, upon reasonable prior notice, to visit
and inspect its


<PAGE>   34

                                                                              30


properties, to examine and make extracts from its books and records, and to
discuss its affairs, finances and condition with its officers and independent
accountants, all at such reasonable times and as often as reasonably requested.

         SECTION 5.07. Compliance with Laws. The Borrower will, and will cause
each of the Subsidiaries to, comply with all laws, rules, regulations and orders
of any Governmental Authority applicable to it or its property, except where the
failure to do so, individually or in the aggregate, could not reasonably be
expected to result in a Material Adverse Effect.

         SECTION 5.08. Use of Proceeds. The proceeds of the Loans will be used
only for the purposes described in the preamble to this Agreement. No part of
the proceeds of any Loan will be used, whether directly or indirectly, for any
purpose that entails a violation of any of the Regulations of the Board,
including Regulations G, U and X.

         SECTION 5.09. Additional Subsidiaries. (a) Substantially simultaneously
with the consummation of the Merger, Capstone will cause each domestic
Subsidiary that is not a party to the Guarantee Agreement (including PCA) to
become a party to the Guarantee Agreement by executing and delivering to the
Administrative Agent a supplement thereto in the manner provided therein.

         (b) If any additional Subsidiary is formed or acquired after the
Effective Date, the Borrower will notify the Administrative Agent and the
Lenders thereof and if such Subsidiary is a domestic Subsidiary, the Borrower
will cause such Subsidiary to become a party to the Guarantee Agreement by
executing and delivering to the Administrative Agent a supplement thereto in the
manner provided therein within ten Business Days after such Subsidiary is formed
or acquired.

                                   ARTICLE VI

                               Negative Covenants

         Until the Commitments have expired or terminated and the principal of
and interest on each Loan and all fees payable hereunder have been paid in full,
the Borrower and Capstone covenant and agree with the Lenders that:

         SECTION 6.01. Indebtedness. The Borrower will not, and will not permit
any Subsidiary to, create, incur, assume or permit to exist any Indebtedness,
except:

                  (a) Indebtedness created hereunder;

                  (b) Indebtedness of the Borrower, any Subsidiary, Capstone or
         any of its subsidiaries existing on the date hereof and set forth in
         Schedule 6.01 and extensions, renewals and replacements of any such
         Indebtedness that do not increase the outstanding principal amount
         thereof;

                  (c) Indebtedness of the Borrower to any wholly owned
         Subsidiary and of any Subsidiary to the Borrower or any other wholly
         owned Subsidiary;

                  (d) Guarantees by the Borrower of Indebtedness of any
         Subsidiary permitted hereunder and by any Subsidiary of Indebtedness
         permitted hereunder of the Borrower or any other Subsidiary;

                  (e) Indebtedness of the Borrower or any Subsidiary incurred to
         finance the acquisition, construction or improvement of any fixed or
         capital assets, including Capital Lease Obligations and any
         Indebtedness assumed in connection with the acquisition of any such
         assets or secured by a Lien on any such assets prior to the acquisition
         thereof, and


<PAGE>   35

                                                                              31


         extensions, renewals and replacements of any such Indebtedness that do
         not increase the outstanding principal amount thereof; provided that
         (i) such Indebtedness is incurred prior to or within 90 days after
         such acquisition or the completion of such construction or improvement
         and (ii) the aggregate principal amount of Indebtedness permitted by
         this clause (e) shall not exceed $20,000,000 at any time outstanding;

                  (f) Indebtedness of any Person that becomes a Subsidiary after
         the date hereof and extensions, renewals and replacements of any such
         Indebtedness that do not increase the outstanding principal amount
         thereof; provided that (i) such Indebtedness exists at the time such
         Person becomes a Subsidiary and is not created in contemplation of or
         in connection with such Person becoming a Subsidiary and (ii) the
         aggregate principal amount of Indebtedness permitted by this clause (f)
         shall not exceed $10,000,000 at any time outstanding;

                  (g) Indebtedness of the Borrower or any Subsidiary as an
         account party in respect of trade letters of credit;

                  (h) Indebtedness of Beverly in an aggregate principal amount
         not to exceed $62,500,000 in respect of the 7-5/8% Convertible
         Subordinated Debentures due March 15, 2003 of Beverly (the "Beverly
         Debentures"), which have been irrevocably called for redemption on
         December 22, 1997, provided that: (i) Beverly Health and Rehabilitation
         Services, Inc., an Affiliate of Beverly, shall have deposited with the
         trustee (the "Trustee") under the indenture relating to the Beverly
         Debentures (the "Indenture") an amount in cash sufficient to redeem the
         Beverly Debentures on December 22, 1997 and to pay all accrued and
         unpaid interest thereon through such date and (ii) the Trustee shall
         have delivered to Beverly a certificate discharging Beverly of its
         obligations pursuant to the Indenture; and

                  (i) other unsecured Indebtedness in an aggregate principal
         amount not exceeding $20,000,000 at any time outstanding.

         SECTION 6.02. Liens. The Borrower will not, and will not permit any
Subsidiary to, create, incur, assume or permit to exist any Lien on any property
or asset now owned or hereafter acquired by it, or assign or sell any income or
revenues (including accounts receivable) or rights in respect of any thereof,
except:

                  (a) Permitted Encumbrances;

                  (b) any Lien on any property or asset of the Borrower, any
         Subsidiary, Capstone or any of its subsidiaries existing on the date
         hereof and set forth in Schedule 6.02; provided that (i) such Lien
         shall not apply to any other property or asset of the Borrower, any
         Subsidiary, Capstone or any of its subsidiaries and (ii) such Lien
         shall secure only those obligations which it secures on the date hereof
         and extensions, renewals and replacements thereof that do not increase
         the outstanding principal amount thereof;

                  (c) any Lien existing on any property or asset prior to the
         acquisition thereof by the Borrower or any Subsidiary or existing on
         any property or asset of any Person that becomes a Subsidiary after the
         date hereof prior to the time such Person becomes a Subsidiary;
         provided that (i) such Lien is not created in contemplation of or in
         connection with such acquisition or such Person becoming a Subsidiary,
         as the case may be, (ii) such Lien shall not apply to any other
         property or assets of the Borrower or any Subsidiary and (iii) such
         Lien shall secure only those obligations which it secures on the date
         of such acquisition or the date such Person becomes a Subsidiary, as
         the case may be and extensions, renewals and replacements thereof that
         do not increase the outstanding principal amount thereof; and

<PAGE>   36


                                                                              32


                  (d) Liens on fixed or capital assets acquired, constructed or
         improved by the Borrower or any Subsidiary; provided that (i) such
         security interests secure Indebtedness permitted by clause (e) of
         Section 6.01, (ii) such security interests and the Indebtedness secured
         thereby are incurred prior to or within 90 days after such acquisition
         or the completion of such construction or improvement, (iii) the
         Indebtedness secured thereby does not exceed 85% of the cost of
         acquiring, constructing or improving such fixed or capital assets and
         (iv) such security interests shall not apply to any other property or
         assets of the Borrower or any Subsidiary.

         SECTION 6.03. Fundamental Changes. (a) The Borrower will not, and will
not permit any Subsidiary to, merge into or consolidate with any other Person,
or permit any other Person to merge into or consolidate with it, or sell,
transfer, lease or otherwise dispose of (in one transaction or in a series of
transactions) all or any substantial part of its assets, or all or substantially
all of the stock of any of the Subsidiaries (in each case, whether now owned or
hereafter acquired), or liquidate or dissolve, except that, if at the time
thereof and immediately after giving effect thereto no Default shall have
occurred and be continuing (i) any Subsidiary may merge into the Borrower in a
transaction in which the Borrower is the surviving corporation, (ii) any
Subsidiary may merge into any other Subsidiary in a transaction in which the
surviving entity is a Subsidiary, (iii) any Subsidiary may sell, transfer, lease
or otherwise dispose of its assets to the Borrower or to another Subsidiary,
(iv) any Person may merge into a Subsidiary to effect a Permitted Acquisition
and (v) any Subsidiary may liquidate or dissolve if the Borrower determines in
good faith that such liquidation or dissolution is in the best interests of the
Borrower and is not materially disadvantageous to the Lenders; provided that (A)
any such merger involving a Person that is not a wholly owned Subsidiary
immediately prior to such merger shall not be permitted unless such merger is
also permitted by Section 6.04 and (B) Beverly and Capstone may consummate the
Merger.

         (b) The Borrower will not, and will not permit any of the Subsidiaries
to, engage to any material extent in any business other than businesses of the
type conducted by the Borrower, the Subsidiaries, Capstone and its subsidiaries
on the date of execution of this Agreement and businesses reasonably related
thereto.

         SECTION 6.04. Investments, Loans, Advances, Guarantees and
Acquisitions. The Borrower will not, and will not permit any of the Subsidiaries
to, purchase, hold or acquire (including pursuant to any merger with any Person
that was not a wholly owned Subsidiary prior to such merger) any capital stock,
evidences of indebtedness or other securities (including any option, warrant or
other right to acquire any of the foregoing) of, make or permit to exist any
loans or advances to, Guarantee any obligations of, or make or permit to exist
any investment or any other interest in, any other Person, or purchase or
otherwise acquire (in one transaction or a series of transactions) any assets of
any other Person constituting a business unit, except:

                  (a) Permitted Investments;

                  (b) investments by the Borrower and the Subsidiaries in the
         capital stock of wholly owned Subsidiaries;

                  (c) loans or advances made by the Borrower to any wholly owned
         Subsidiary and made by any Subsidiary to the Borrower or any other
         wholly owned Subsidiary;

                  (d) Guarantees constituting Indebtedness permitted by
         Section 6.01;

                  (e) Permitted Acquisitions;

                  (f) the Merger; and

<PAGE>   37

                                                                              33


                  (g) other investments not described in clauses (a) through (f)
         above and not exceeding, in the aggregate, $20,000,000.

         SECTION 6.05. Hedging Agreements. The Borrower will not, and will not
permit any of the Subsidiaries to, enter into any Hedging Agreement, other than
Hedging Agreements entered into in the ordinary course of business to hedge or
mitigate risks to which the Borrower or any Subsidiary is exposed in the conduct
of its business or the management of its liabilities.

         SECTION 6.06. Restricted Payments. The Borrower will not, and will not
permit any of the Subsidiaries to, declare or make, or agree to pay or make,
directly or indirectly, any Restricted Payment, except (a) the Borrower may
declare and pay dividends with respect to its capital stock payable solely in
additional shares of its common stock and, (b) Subsidiaries may declare and pay
dividends ratably with respect to their capital stock and (c) the Borrower may
make Restricted Payments pursuant to and in accordance with stock option plans
or other benefit plans for management or employees of the Borrower and the
Subsidiaries.

         SECTION 6.07. Transactions with Affiliates. The Borrower will not, and
will not permit any of the Subsidiaries to, sell, lease or otherwise transfer
any property or assets to, or purchase, lease or otherwise acquire any property
or assets from, or otherwise engage in any other transactions with, any of its
Affiliates, except (a) in the ordinary course of business at prices and on terms
and conditions not less favorable to the Borrower or such Subsidiary than could
be obtained on an arm's-length basis from unrelated third parties, (b)
transactions between or among the Borrower and its wholly owned Subsidiaries not
involving any other Affiliate, (c) any Restricted Payment permitted by Section
6.06 and (d) the Distribution and the transactions contemplated by the Merger
Agreement.

         SECTION 6.08. Restrictive Agreements. The Borrower will not, and will
not permit any of the Subsidiaries to, directly or indirectly, enter into, incur
or permit to exist any agreement or other arrangement that prohibits, restricts
or imposes any condition upon (a) the ability of the Borrower or any Subsidiary
to create, incur or permit to exist any Lien upon any of its property or assets,
or (b) the ability of any Subsidiary to pay dividends or other distributions
with respect to any shares of its capital stock or to make or repay loans or
advances to the Borrower or any other Subsidiary or to Guarantee Indebtedness of
the Borrower or any other Subsidiary; provided that (i) the foregoing shall not
apply to restrictions and conditions imposed by law or by this Agreement, (ii)
the foregoing shall not apply to restrictions and conditions existing on the
date hereof identified on Schedule 6.08 (but shall apply to any extension or
renewal of, or any amendment or modification expanding the scope of, any such
restriction or condition), (iii) the foregoing shall not apply to customary
restrictions and conditions contained in agreements relating to (x) the sale of
a Subsidiary pending such sale, provided such restrictions and conditions apply
only to the Subsidiary that is to be sold and such sale is permitted hereunder,
or (y) investments in joint ventures permitted hereby, (iv) clause (a) of the
foregoing shall not apply to restrictions or conditions imposed by any agreement
relating to secured Indebtedness permitted by this Agreement if such
restrictions or conditions apply only to the property or assets securing such
Indebtedness and (v) clause (a) of the foregoing shall not apply to customary
provisions in leases and other contracts restricting the assignment thereof.

         SECTION 6.09. Adjusted Leverage Ratio. The Borrower will not permit the
ratio of (a) Total Debt as of the end of any four-fiscal-quarter period ending
during any period set forth

<PAGE>   38

                                                                              34


below to (b) Adjusted Consolidated EBITDA for such four-fiscal-quarter period to
be in excess of the ratio set forth below opposite such period:

<TABLE>
<CAPTION>

      Period                                          Ratio
      ------                                          -----
      <S>                                             <C>
      Effective Date                                  4.00 to 1.0
        through and including
        December 31, 1998
      March 31, 1999                                  3.75 to 1.0
        through and including
        December 31, 1999
      March 31, 2000                                  3.25 to 1.0
        through and including
        December 31, 2000
      Thereafter                                      2.50 to 1.0
</TABLE>


         SECTION 6.10. Consolidated Interest Expense Coverage Ratio. The
Borrower will not permit the ratio of (a) Consolidated EBITDA of the Borrower
and the Subsidiaries to (b) Consolidated Interest Expense for any
four-fiscal-quarter period to be less than 2.50 to 1.00.

         SECTION 6.11. Net Worth. The Borrower will not permit Consolidated Net
Worth at any date on or after the consummation of the Merger to be less than the
sum of (a) $760,000,000, (b) 50% of Consolidated Net Income for each fiscal
quarter with positive Consolidated Net Income ending on or after the Effective
Date and on or prior to the date as to which compliance with this Section 6.11
is being determined and (c) 100% of the net proceeds in respect of any issuance
of equity securities of the Borrower or any Subsidiary after the Effective Date.


                                   ARTICLE VII

                                Events of Default

         If any of the following events ("Events of Default") shall occur:

                  (a) the Borrower shall fail to pay any principal of any Loan
         when and as the same shall become due and payable, whether at the due
         date thereof or at a date fixed for prepayment thereof or otherwise;

                  (b) the Borrower shall fail to pay any interest on any Loan or
         any fee or any other amount (other than an amount referred to in clause
         (a) of this Article) payable under this Agreement, when and as the
         same shall become due and payable, and such failure shall continue
         unremedied for a period of three Business Days;

                  (c) any representation or warranty made or deemed made by or
         on behalf of the Borrower or any Subsidiary in or in connection with
         this Agreement or any amendment or modification hereof or waiver
         hereunder, or in any report, certificate, financial statement or other
         document furnished pursuant to or in connection with this Agreement or
         any amendment or modification hereof or waiver hereunder, shall prove
         to have been incorrect when made or deemed made;


<PAGE>   39


                                                                              35


                  (d) the Borrower shall fail to observe or perform any
         covenant, condition or agreement contained in Section 5.02, 5.03 (with
         respect to the Borrower's existence) or 5.08 or in Article VI;

                  (e) the Borrower shall fail to observe or perform any
         covenant, condition or agreement contained in this Agreement (other
         than those specified in clause (a), (b) or (d) of this Article), and
         such failure shall continue unremedied for a period of 30 days after
         notice thereof from the Administrative Agent to the Borrower (which
         notice will be given at the request of any Lender);

                  (f) the Borrower or any Subsidiary shall fail to make any
         payment (whether of principal or interest and regardless of amount) in
         respect of any Material Indebtedness, when and as the same shall become
         due and payable;

                  (g) any event or condition occurs that results in any Material
         Indebtedness becoming due prior to its scheduled maturity or that
         enables or permits (with or without the giving of notice, the lapse of
         time or both) the holder or holders of any Material Indebtedness or any
         trustee or agent on its or their behalf to cause any Material
         Indebtedness to become due, or to require the prepayment, repurchase,
         redemption or defeasance thereof, prior to its scheduled maturity;
         provided that this clause (g) shall not apply to secured Indebtedness
         that becomes due as a result of the voluntary sale or transfer of the
         property or assets securing such Indebtedness;

                  (h) an involuntary proceeding shall be commenced or an
         involuntary petition shall be filed seeking (i) liquidation,
         reorganization or other relief in respect of the Borrower or any
         Subsidiary or its debts, or of a substantial part of its assets, under
         any Federal, state or foreign bankruptcy, insolvency, receivership or
         similar law now or hereafter in effect or (ii) the appointment of a
         receiver, trustee, custodian, sequestrator, conservator or similar
         official for the Borrower or any Subsidiary or for a substantial part
         of its assets, and, in any such case, such proceeding or petition shall
         continue undismissed for 90 days or an order or decree approving or
         ordering any of the foregoing shall be entered;

                  (i) the Borrower or any Subsidiary shall (i) voluntarily
         commence any proceeding or file any petition seeking liquidation,
         reorganization or other relief under any Federal, state or foreign
         bankruptcy, insolvency, receivership or similar law now or hereafter in
         effect, (ii) consent to the institution of, or fail to contest in a
         timely and appropriate manner, any proceeding or petition described in
         clause (h) of this Article, (iii) apply for or consent to the
         appointment of a receiver, trustee, custodian, sequestrator,
         conservator or similar official for the Borrower or any Subsidiary or
         for a substantial part of its assets, (iv) file an answer admitting the
         material allegations of a petition filed against it in any such
         proceeding, (v) make a general assignment for the benefit of creditors
         or (vi) take any action for the purpose of effecting any of the fore
         going;

                  (j) the Borrower or any Subsidiary shall become unable, admit
         in writing its inability or fail generally to pay its debts as they
         become due;

                  (k) one or more judgments for the payment of money in an
         aggregate amount in excess of $10,000,000 (to the extent not adequately
         covered by insurance as to which the insurance company has
         acknowledged coverage pursuant to a writing reasonably satisfactory to
         the Administrative Agent) shall be rendered against the Borrower, any
         Subsidiary or any combination thereof and the same shall remain
         undischarged for a period of 30 consecutive days during which
         execution shall not be effectively stayed, or any action shall be
         legally taken by a judgment creditor to attach or levy upon any assets
         of the Borrower or any Subsidiary to enforce any such judgment;


<PAGE>   40

                                                                              36


                  (l) an ERISA Event shall have occurred that, in the opinion of
         the Required Lenders, when taken together with all other ERISA Events
         that have occurred, could reasonably be expected to result in liability
         of the Borrower and its Subsidiaries in an aggregate amount exceeding
         $10,000,000; or

                  (m) a Change in Control shall occur;

then, and in every such event (other than an event with respect to the Borrower
described in clause (h) or (i) of this Article), and at any time thereafter
during the continuance of such event, the Administrative Agent may, and at the
request of the Required Lenders shall, by notice to the Borrower, take either or
both of the following actions, at the same or different times: (i) terminate the
Commitments, and thereupon the Commitments shall terminate immediately, and (ii)
declare the Loans then outstanding to be due and payable in whole (or in part,
in which case any principal not so declared to be due and payable may thereafter
be declared to be due and payable), and thereupon the principal of the Loans so
declared to be due and payable, together with accrued interest thereon and all
fees and other obligations of the Borrower accrued hereunder, shall become due
and payable immediately, without presentment, demand, protest or other notice of
any kind, all of which are hereby waived by the Borrower; and in case of any
event with respect to the Borrower described in clause (h) or (i) of this
Article, the Commitments shall automatically terminate and the principal of the
Loans then outstanding, together with accrued interest thereon and all fees and
other obligations of the Borrower accrued hereunder, shall automatically become
due and payable, without presentment, demand, protest or other notice of any
kind, all of which are hereby waived by the Borrower.

                                  ARTICLE VIII

                            The Administrative Agent

         Each of the Lenders hereby irrevocably appoints the Administrative
Agent as its agent and authorizes the Administrative Agent to take such actions
on its behalf and to exercise such powers as are delegated to the Administrative
Agent by the terms hereof, together with such actions and powers as are
reasonably incidental thereto.

         The bank serving as the Administrative Agent hereunder shall have the
same rights and powers in its capacity as a Lender as any other Lender and may
exercise the same as though it were not the Administrative Agent, and such bank
and its Affiliates may accept deposits from, lend money to and generally engage
in any kind of business with the Borrower or any Subsidiary or other Affiliate
thereof as if it were not the Administrative Agent hereunder.

         The Administrative Agent shall not have any duties or obligations
except those expressly set forth herein. Without limiting the generality of the
foregoing, (a) the Administrative Agent shall not be subject to any fiduciary or
other implied duties, regardless of whether a Default has occurred and is
continuing, (b) the Administrative Agent shall not have any duty to take any
discretionary action or exercise any discretionary powers, except discretionary
rights and powers expressly contemplated hereby that the Administrative Agent is
required to exercise in writing by the Required Lenders (or such other number or
percentage of the Lenders as shall be necessary under the circumstances as
provided in Section 9.02), and (c) except as expressly set forth herein, the
Administrative Agent shall not have any duty to disclose, and shall not be
liable for the failure to disclose, any information relating to the Borrower or
any of its Subsidiaries that is communicated to or obtained by the bank serving
as Administrative Agent or any of its Affiliates in any capacity. The
Administrative Agent shall not be liable for any action taken or not taken by it
with the consent or at the request of the Required Lenders (or such other number
or percentage of the Lenders as shall be necessary under the circumstances as
provided in Section 9.02) or in the absence of its own gross negligence or
wilful misconduct. The Administrative Agent shall be deemed not to have
knowledge of any Default unless and until written notice thereof is given to the
Administrative Agent by the

<PAGE>   41

                                                                              37


Borrower or a Lender, and the Administrative Agent shall not be responsible for
or have any duty to ascertain or inquire into (i) any statement, warranty or
representation made in or in connection with this Agreement, (ii) the contents
of any certificate, report or other document delivered hereunder or in
connection herewith, (iii) the performance or observance of any of the
covenants, agreements or other terms or conditions set forth herein, (iv) the
validity, enforceability, effectiveness or genuineness of this Agreement or any
other agreement, instrument or document, or (v) the satisfaction of any
condition set forth in Article IV or elsewhere herein, other than to confirm
receipt of items expressly required to be delivered to the Administrative Agent.

         The Administrative Agent shall be entitled to rely upon, and shall not
incur any liability for relying upon, any notice, request, certificate, consent,
statement, instrument, document or other writing believed by it to be genuine
and to have been signed or sent by the proper Person. The Administrative Agent
also may rely upon any statement made to it orally or by telephone and believed
by it to be made by the proper Person, and shall not incur any liability for
relying thereon. The Administrative Agent may consult with legal counsel (who
may be counsel for the Borrower), independent accountants and other experts
selected by it, and shall not be liable for any action taken or not taken by it
in accordance with the advice of any such counsel, accountants or experts.

         The Administrative Agent may perform any and all its duties and
exercise its rights and powers by or through any one or more sub-agents
appointed by the Administrative Agent. The Administrative Agent and any such
sub-agent may perform any and all its duties and exercise its rights and powers
through their respective Related Parties. The exculpatory provisions of the
preceding paragraphs shall apply to any such sub-agent and to the Related
Parties of the Administrative Agent and any such subagent, and shall apply to
their respective activities in connection with the syndication of the credit
facilities provided for herein as well as activities as Administrative Agent.

         Subject to the appointment and acceptance of a successor Administrative
Agent as provided in this paragraph, the Administrative Agent may resign at any
time by notifying the Lenders and the Borrower. Upon any such resignation, the
Required Lenders shall have the right, in consultation with the Borrower, to
appoint a successor reasonably acceptable to the Borrower. If no successor shall
have been so appointed by the Required Lenders and shall have accepted such
appointment within 30 days after the retiring Administrative Agent gives notice
of its resignation, then the retiring Administrative Agent may, on behalf of the
Lenders, appoint a successor Administrative Agent which shall be a bank with an
office in New York, New York, or an Affiliate of any such bank. Upon the
acceptance of its appointment as Administrative Agent hereunder by a successor,
such successor shall succeed to and become vested with all the rights, powers,
privileges and duties of the retiring Administrative Agent, and the retiring
Administrative Agent shall be discharged from its duties and obligations
hereunder. The fees payable by the Borrower to a successor Administrative Agent
shall be the same as those payable to its predecessor unless otherwise agreed
between the Borrower and such successor. After the Administrative Agent's
resignation hereunder, the provisions of this Article and Section 9.03 shall
continue in effect for the benefit of such retiring Administrative Agent, its
sub-agents and their respective Related Parties in respect of any actions taken
or omitted to be taken by any of them while it was acting as Administrative
Agent.

         Each Lender acknowledges that it has, independently and without
reliance upon the Administrative Agent or any other Lender and based on such
documents and information as it has deemed appropriate, made its own credit
analysis and decision to enter into this Agreement. Each Lender also
acknowledges that it will, independently and without reliance upon the
Administrative Agent or any other Lender and based on such documents and
information as it shall from time to time deem appropriate, continue to make its
own decisions in taking or not taking action under or based upon this Agreement,
any related agreement or any document furnished hereunder or thereunder.

<PAGE>   42

                                                                              38


                                   ARTICLE IX

                                  Miscellaneous

         SECTION 9.01. Notices. Except in the case of notices and other
communications expressly permitted to be given by telephone, all notices and
other communications provided for herein shall be in writing and shall be
delivered by hand or overnight courier service, mailed by certified or
registered mail or sent by telecopy, as follows:

                  (a) if to PCA, to it at Pharmacy Corporation of America, 3611
         Queen Palm Drive, Tampa, FL 33619, Attention of Mr. Gerald Gerlach
         (Telecopy No. 813-623-1167);

                  (b) if to Capstone, to it at 9901 East Valley Ranch Parkway,
         Suite 3001, Irving, TX 75063, Attention of James Shelton (Telecopy No.
         972-753-0721);

                  (c) if to the Administrative Agent, to The Chase Manhattan
         Bank, Loan and Agency Services Group, One Chase Manhattan Plaza, 8th
         Floor, New York, New York 10081, Attention of Mr. Jesse Huff (Telecopy
         No. (212) 552-7500), with a copy to The Chase Manhattan Bank, 270 Park
         Avenue, New York 10017, Attention of Ms. Joan Garvin  (Telecopy
         No. (212) 270-5135);

                  (d) if to any other Lender, to it at its address (or telecopy
         number) set forth in its Administrative Questionnaire.

Any party hereto may change its address or telecopy number for notices and other
communications hereunder by notice to the other parties hereto. All notices and
other communications given to any party hereto in accordance with the provisions
of this Agreement shall be deemed to have been given on the date of receipt.

         SECTION 9.02. Waivers; Amendments. (a) No failure or delay by the
Administrative Agent or any Lender in exercising any right or power hereunder
shall operate as a waiver thereof, 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
the exercise of any other right or power. The rights and remedies of the
Administrative Agent and the Lenders hereunder are cumulative and are not
exclusive of any rights or remedies that they would otherwise have. No waiver of
any provision of this Agreement or consent to any departure by the Borrower
therefrom shall in any event be effective unless the same shall be permitted by
paragraph (b) of this Section, and then such waiver or consent shall be
effective only in the specific instance and for the purpose for which given.
Without limiting the generality of the foregoing, the making of a Loan shall not
be construed as a waiver of any Default, regardless of whether the
Administrative Agent or any Lender may have had notice or knowledge of such
Default at the time.

         (b) Neither this Agreement nor any provision hereof may be waived,
amended or modified except pursuant to an agreement or agreements in writing
entered into by the Borrower and the Required Lenders or by the Borrower and the
Administrative Agent with the consent of the Required Lenders; provided that no
such agreement shall (i) increase the Commitment of any Lender without the
written consent of such Lender, (ii) reduce the principal amount of any Loan or
reduce the rate of interest thereon, or reduce any fees payable hereunder,
without the written consent of each Lender affected thereby, (iii) postpone the
scheduled date of payment of the principal amount of any Loan or any interest
thereon, or any fees payable hereunder, or reduce the amount of, waive or excuse
any such payment, or postpone the scheduled date of expiration of any
Commitment, without the written consent of each Lender affected thereby, (iv)
change Section 2.15(b) or (c) in a manner that would

<PAGE>   43

                                                                              39


alter the pro rata sharing of payments required thereby, without the written
consent of each Lender, or (v) change any of the provisions of this Section or
the definition of "Required Lenders" or any other provision hereof specifying
the number or percentage of Lenders required to waive, amend or modify any
rights hereunder or make any determination or grant any consent hereunder,
without the written consent of each Lender; provided further that no such
agreement shall amend, modify or otherwise affect the rights or duties of the
Administrative Agent hereunder without the prior written consent of the
Administrative Agent.

         SECTION 9.03. Expenses; Indemnity; Damage Waiver. (a) The Borrower
shall pay (i) all reasonable out-of-pocket expenses incurred by the
Administrative Agent and its Affiliates, including the reasonable fees, charges
and disbursements of counsel for the Administrative Agent, in connection with
the syndication of the credit facilities provided for herein, the preparation
and administration of this Agreement or any amendments, modifications or waivers
of the provisions hereof (whether or not the transactions contemplated hereby or
thereby shall be consummated) and (ii) all reasonable out-of-pocket expenses
incurred by the Administrative Agent or any Lender, including the reasonable
fees, charges and disbursements of any counsel for the Administrative Agent or
any Lender, in connection with the enforcement or protection of its rights in
connection with this Agreement, including its rights under this Section, or in
connection with the Loans made hereunder, including all such out-of-pocket
expenses incurred during any workout, restructuring or negotiations in respect
of such Loans.

         (b) The Borrower shall indemnify the Administrative Agent and each
Lender, and each Related Party of any of the foregoing Persons (each such Person
being called an "Indemnitee") against, and hold each Indemnitee harmless from,
any and all losses, claims, damages, liabilities and related expenses, including
the fees, charges and disbursements of any counsel for any Indemnitee, incurred
by or asserted against any Indemnitee arising out of, in connection with, or as
a result of (i) the execution or delivery of this Agreement or any agreement or
instrument contemplated hereby, the performance by the parties hereto of their
respective obligations hereunder or the consummation of the Transactions or any
other transactions contemplated hereby, (ii) any Loan or the use of the proceeds
therefrom, (iii) any actual or alleged presence or release of Hazardous
Materials on or from any property owned or operated by the Borrower or any of
the Subsidiaries, or any Environmental Liability related in any way to the
Borrower or any of the Subsidiaries, or (iv) any actual or prospective claim,
litigation, investigation or proceeding relating to any of the foregoing,
whether based on contract, tort or any other theory and regardless of whether
any Indemnitee is a party thereto; provided that such indemnity shall not, as to
any Indemnitee, be available to the extent that such losses, claims, damages,
liabilities or related expenses are determined by a court of competent
jurisdiction by final and nonappealable judgment to have resulted from the gross
negligence or wilful misconduct of such Indemnitee.

         (c) To the extent that the Borrower fails to pay any amount required to
be paid by it to the Administrative Agent under paragraph (a) or (b) of this
Section, each Lender severally agrees to pay to the Administrative Agent such
Lender's Applicable Percentage (determined as of the time that the applicable
unreimbursed expense or indemnity payment is sought) of such unpaid amount;
provided that the unreimbursed expense or indemnified loss, claim, damage,
liability or related expense, as the case may be, was incurred by or asserted
against the Administrative Agent in its capacity as such.

         (d) To the extent permitted by applicable law, the Borrower shall not
assert, and hereby waives, any claim against any Indemnitee, on any theory of
liability, for special, indirect, consequential or punitive damages (as opposed
to direct or actual damages) arising out of, in connection with, or as a result
of, this Agreement or any agreement or instrument contemplated hereby, the
Transactions, any Loan or the use of the proceeds thereof.

         (e) All amounts due under this Section shall be payable promptly after
written demand therefor.


<PAGE>   44

                                                                              40


         SECTION 9.04. Successors and Assigns. (a) The provisions of this
Agreement shall be binding upon and inure to the benefit of the parties hereto
and their respective successors and assigns permitted hereby, except that the
Borrower may not assign or otherwise transfer any of its rights or obligations
hereunder without the prior written consent of each Lender (and any attempted
assignment or transfer by the Borrower without such consent shall be null and
void). Nothing in this Agreement, expressed or implied, shall be construed to
confer upon any Person (other than the parties hereto, their respective
successors and assigns permitted hereby and, to the extent expressly
contemplated hereby, the Related Parties of each of the Administrative Agent and
the Lenders) any legal or equitable right, remedy or claim under or by reason of
this Agreement.

         (b) Any Lender may assign to one or more assignees all or a portion of
its rights and obligations under this Agreement (including all or a portion of
its Commitment and the Loans at the time owing to it); provided that (i) except
in the case of an assignment to a Lender or an Affiliate of a Lender, each of
the Borrower and the Administrative Agent must give their prior written consent
to such assignment (which consent shall not be unreasonably withheld), (ii)
except in the case of an assignment to a Lender or an Affiliate of a Lender or
an assignment of the entire remaining amount of the assigning Lender's
Commitment, the amount of the Commitment of the assigning Lender subject to each
such assignment (determined as of the date the Assignment and Acceptance with
respect to such assignment is delivered to the Administrative Agent) shall not
be less than $5,000,000 unless each of the Borrower and the Administrative Agent
otherwise consent, (iii) each partial assignment shall be made as an assignment
of a proportionate part of all the assigning Lender's rights and obligations
under this Agreement, (iv) the parties to each assignment shall execute and
deliver to the Administrative Agent an Assignment and Acceptance, together with
a processing and recordation fee of $3,500, and (v) the assignee, if it shall
not be a Lender, shall deliver to the Administrative Agent an Administrative
Questionnaire; and provided further that any consent of the Borrower otherwise
required under this paragraph shall not be required if an Event of Default under
clause (h) or (i) of Article VII has occurred and is continuing. Subject to
acceptance and recording thereof pursuant to paragraph (d) of this Section, from
and after the effective date specified in each Assignment and Acceptance the
assignee thereunder shall be a party hereto and, to the extent of the interest
assigned by such Assignment and Acceptance, have the rights and obligations of a
Lender under this Agreement, and the assigning Lender thereunder shall, to the
extent of the interest assigned by such Assignment and Acceptance, be released
from its obligations under this Agreement (and, in the case of an Assignment and
Acceptance covering all of the assigning Lender's rights and obligations under
this Agreement, such Lender shall cease to be a party hereto but shall continue
to be entitled to the benefits of Sections 2.12, 2.13, 2.14 and 9.03). Any
assignment or transfer by a Lender of rights or obligations under this Agreement
that does not comply with this paragraph shall be treated for purposes of this
Agreement as a sale by such Lender of a participation in such rights and
obligations in accordance with paragraph (e) of this Section.

         (c) The Administrative Agent, acting for this purpose as an agent of
the Borrower, shall maintain at one of its offices in The City of New York a
copy of each Assignment and Acceptance delivered to it and a register for the
recordation of the names and addresses of the Lenders, and the Commitment of,
and principal amount of the Loans owing to, each Lender pursuant to the terms
hereof from time to time (the "Register"). The entries in the Register shall be
conclusive, and the Borrower, the Administrative Agent and the Lenders may treat
each Person whose name is recorded in the Register pursuant to the terms hereof
as a Lender hereunder for all purposes of this Agreement, notwithstanding notice
to the contrary. The Register shall be available for inspection by the Borrower
and any Lender, at any reasonable time and from time to time upon reasonable
prior notice.

         (d) Upon its receipt of a duly completed Assignment and Acceptance
executed by an assigning Lender and an assignee, the assignee's completed
Administrative Questionnaire (unless the assignee shall already be a Lender
hereunder), the processing and recordation fee referred to in paragraph (b) of
this Section and any written consent to such assignment required by paragraph
(b) of this Section, the Administrative Agent shall accept such Assignment and
Acceptance and record

<PAGE>   45

                                                                              41


the information contained therein in the Register. No assignment shall be
effective for purposes of this Agreement unless it has been recorded in the
Register as provided in this paragraph.

                  (e) Any Lender may, without the consent of the Borrower or the
Administrative Agent, sell participations to one or more banks or other entities
(a "Participant") in all or a portion of such Lender's rights and obligations
under this Agreement (including all or a portion of its Commitment and the Loans
owing to it); provided that (i) such Lender's obligations under this Agreement
shall remain unchanged, (ii) such Lender shall remain solely responsible to the
other parties hereto for the performance of such obligations and (iii) the
Borrower, the Administrative Agent and the other Lenders shall continue to deal
solely and directly with such Lender in connection with such Lender's rights and
obligations under this Agreement. Any agreement or instrument pursuant to which
a Lender sells such a participation shall provide that such Lender shall retain
the sole right to enforce this Agreement and to approve any amendment,
modification or waiver of any provision of this Agreement; provided that such
agreement or instrument may provide that such Lender will not, without the
consent of the Participant, agree to any amendment, modification or waiver
described in the first proviso to Section 9.02(b) that affects such Participant.
Subject to paragraph (f) of this Section, the Borrower agrees that each
Participant shall be entitled to the benefits of Sections 2.12, 2.13 and 2.14 to
the same extent as if it were a Lender and had acquired its interest by
assignment pursuant to paragraph (b) of this Section. To the extent permitted by
law, each Participant also shall be entitled to the benefits of Section 9.08 as
though it were a Lender, provided such Participant agrees to be subject to
Section 2.15(c) as though it were a Lender.

         (f) A Participant shall not be entitled to receive any greater payment
under Section 2.12 or 2.14 than the applicable Lender would have been entitled
to receive with respect to the participation sold to such Participant, unless
the sale of the participation to such Participant is made with the Borrower's
prior written consent. A Participant that would be a Foreign Lender if it were a
Lender shall not be entitled to the benefits of Section 2.14 unless the Borrower
is notified of the participation sold to such Participant and such Participant
agrees, for the benefit of the Borrower, to comply with Section 2.14(e) as
though it were a Lender.

         (g) Any Lender may at any time pledge or assign a security interest in
all or any portion of its rights under this Agreement to secure obligations of
such Lender, including any pledge or assignment to secure obligations to a
Federal Reserve Bank, and this Section shall not apply to any such pledge or
assignment of a security interest; provided that no such pledge or assignment of
a security interest shall release a Lender from any of its obligations hereunder
or substitute any such pledgee or assignee for such Lender as a party hereto.

         SECTION 9.05. Survival. All covenants, agreements, representations and
warranties made by the Borrower herein and in the certificates or other
instruments delivered in connection with or pursuant to this Agreement shall be
considered to have been relied upon by the other parties hereto and shall
survive the execution and delivery of this Agreement and the making of any
Loans, regardless of any investigation made by any such other party or on its
behalf and notwithstanding that the Administrative Agent or any Lender may have
had notice or knowledge of any Default or incorrect representation or warranty
at the time any credit is extended hereunder, and shall continue in full force
and effect as long as the principal of or any accrued interest on any Loan or
any fee or any other amount payable under this Agreement is outstanding and
unpaid and so long as the Commitments have not expired or terminated. The
provisions of Sections 2.12, 2.13, 2.14 and 9.03 and Article VIII shall survive
and remain in full force and effect regardless of the consummation of the
transactions contemplated hereby, the repayment of the Loans, the expiration or
termination and the Commitments or the termination of this Agreement or any
provision hereof.

         SECTION 9.06. Counterparts; Integration; Effectiveness. This Agreement
may be executed in counterparts (and by different parties hereto on different
counterparts), each of which shall constitute an original, but all of which when
taken together shall constitute a single contract. This Agreement and any
separate letter agreements with respect to fees payable to the


<PAGE>   46

                                                                              42


Administrative Agent constitute the entire contract among the parties relating
to the subject matter hereof and supersede any and all previous agreements and
understandings, oral or written, relating to the subject matter hereof. Except
as provided in Section 4.01, this Agreement shall become effective when it shall
have been executed by the Administrative Agent and when the Administrative Agent
shall have received counterparts hereof which, when taken together, bear the
signatures of each of the other parties hereto, and thereafter shall be binding
upon and inure to the benefit of the parties hereto and their respective
successors and assigns. Delivery of an executed counterpart of a signature page
of this Agreement by telecopy shall be as effective as delivery of a manually
executed counterpart of this Agreement.

         SECTION 9.07. Severability. Any provision of this Agreement held to be
invalid, illegal or unenforceable in any jurisdiction shall, as to such
jurisdiction, be ineffective to the extent of such invalidity, illegality or
unenforceability without affecting the validity, legality and enforceability of
the remaining provisions hereof; and the invalidity of a particular provision in
a particular jurisdiction shall not invalidate such provision in any other
jurisdiction.

         SECTION 9.08. Right of Setoff. If an Event of Default shall have
occurred and be continuing, each Lender and each of its Affiliates is hereby
authorized at any time and from time to time, to the fullest extent permitted by
law, to set off and apply any and all deposits (general or special, time or
demand, provisional or final) at any time held and other obligations at any time
owing by such Lender or Affiliate to or for the credit or the account of the
Borrower against any of and all the obligations of the Borrower now or hereafter
existing under this Agreement held by such Lender, irrespective of whether or
not such Lender shall have made any demand under this Agreement and although
such obligations may be unmatured. The rights of each Lender under this Section
are in addition to other rights and remedies (including other rights of setoff)
which such Lender may have.

         SECTION 9.09. Governing Law; Jurisdiction; Consent to Service of
Process. (a) This Agreement shall be construed in accordance with and governed
by the law of the State of New York.

         (b) The Borrower hereby irrevocably and unconditionally submits, for
itself and its property, to the nonexclusive jurisdiction of the Supreme Court
of the State of New York sitting in New York County and of the United States
District Court of the Southern District of New York, and any appellate court
from any thereof, in any action or proceeding arising out of or relating to this
Agreement, or for recognition or enforcement of any judgment, and each of the
parties hereto hereby irrevocably and unconditionally agrees that all claims in
respect of any such action or proceeding may be heard and determined in such New
York State or, to the extent permitted by law, in such Federal court. Each of
the parties hereto agrees that a final judgment in any such action or proceeding
shall be conclusive and may be enforced in other jurisdictions by suit on the
judgment or in any other manner provided by law. Nothing in this Agreement shall
affect any right that the Administrative Agent or any Lender may otherwise have
to bring any action or proceeding relating to this Agreement against the
Borrower or its properties in the courts of any jurisdiction.

         (c) The Borrower hereby irrevocably and unconditionally waives, to the
fullest extent it may legally and effectively do so, any objection which it may
now or hereafter have to the laying of venue of any suit, action or proceeding
arising out of or relating to this Agreement in any court referred to in
paragraph (b) of this Section. Each of the parties hereto hereby irrevocably
waives, to the fullest extent permitted by law, the defense of an inconvenient
forum to the maintenance of such action or proceeding in any such court.

         (d) Each party to this Agreement irrevocably consents to service of
process in the manner provided for notices in Section 9.01. Nothing in this
Agreement will affect the right of any party to this Agreement to serve process
in any other manner permitted by law.


<PAGE>   47

                                                                              43


         SECTION 9.10. WAIVER OF JURY TRIAL. EACH PARTY HERETO HEREBY WAIVES, TO
THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A TRIAL
BY JURY IN ANY LEGAL PROCEEDING DIRECTLY OR INDIRECTLY ARISING OUT OF OR
RELATING TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY (WHETHER
BASED ON CONTRACT, TORT OR ANY OTHER THEORY). EACH PARTY HERETO (A) CERTIFIES
THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER PARTY HAS REPRESENTED,
EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD NOT, IN THE EVENT OF
LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER AND (B) ACKNOWLEDGES THAT IT
AND THE OTHER PARTIES HERETO HAVE BEEN INDUCED TO ENTER INTO THIS AGREEMENT BY,
AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION.

         SECTION 9.11. Headings. Article and Section headings and the Table of
Contents used herein are for convenience of reference only, are not part of this
Agreement and shall not affect the construction of, or be taken into
consideration in interpreting, this Agreement.

         SECTION 9.12. Confidentiality. Each of the Administrative Agent and the
Lenders agrees to maintain the confidentiality of the Information (as defined
below), except that Information may be disclosed (a) to its and its Affiliates'
directors, officers, employees and agents, including accountants, legal counsel
and other advisors (it being understood that the Persons to whom such disclosure
is made will be informed of the confidential nature of such Information and
instructed to keep such Information confidential), (b) to the extent requested
by any regulatory authority, (c) to the extent required by applicable laws or
regulations or by any subpoena or similar legal process, (d) to any other party
to this Agreement, (e) in connection with the exercise of any remedies hereunder
or any suit, action or proceeding relating to this Agreement or the enforcement
of rights hereunder, (f) subject to an agreement containing provisions
substantially the same as those of this Section, to any assignee of or
Participant in, or any prospective assignee of or Participant in, any of its
rights or obligations under this Agreement, (g) with the consent of the Borrower
or (h) to the extent such Information (i) becomes publicly available other than
as a result of a breach of this Section or (ii) becomes available to the
Administrative Agent or any Lender on a nonconfidential basis from a source
other than the Borrower. For the purposes of this Section, "Information" means
all information received from the Borrower relating to the Borrower or its
business, other than any such information that is available to the
Administrative Agent or any Lender on a nonconfidential basis prior to
disclosure by the Borrower; provided that, in the case of information received
from the Borrower after the date hereof, such information is clearly identified
at the time of delivery as confidential. Any Person required to maintain the
confidentiality of Information as provided in this Section shall be considered
to have complied with its obligation to do so if such Person has exercised the
same degree of care to maintain the confidentiality of such Information as such
Person would accord to its own confidential information.

         SECTION 9.13. Interest Rate Limitation. Notwithstanding anything herein
to the contrary, if at any time the interest rate applicable to any Loan,
together with all fees, charges and other amounts which are treated as interest
on such Loan under applicable law (collectively the "Charges"), shall exceed the
maximum lawful rate (the "Maximum Rate") which may be contracted for, charged,
taken, received or reserved by the Lender holding such Loan in accordance with
applicable law, the rate of interest payable in respect of such Loan hereunder,
together with all Charges payable in respect thereof, shall be limited to the
Maximum Rate and, to the extent lawful, the interest and Charges that would have
been payable in respect of such Loan but were not payable as a result of the
operation of this Section shall be cumulated and the interest and Charges
payable to such Lender in respect of other Loans or periods shall be increased
(but not above the Maximum Rate therefor) until such cumulated amount, together
with interest thereon at the Federal Funds Effective Rate to the date of
repayment, shall have been received by such Lender.


<PAGE>   48

                                                                              44


         SECTION 9.14. Borrower Upon Merger. Upon and after the consummation of
the Merger, Capstone shall automatically and without further action assume all
the obligations and shall be entitled to all the rights of the Borrower
hereunder (including the right to request Borrowings) and PCA shall no longer
have the right to request Borrowings; provided, however, that Capstone shall not
be deemed to be a party to this Agreement until the consummation of the Merger.
Upon PCA's becoming a Guarantor, PCA shall automatically and without further
action be released from its obligations as the Borrower hereunder and shall no
longer be entitled to any rights of the Borrower hereunder.

<PAGE>   49

                                                                              45


         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed by their respective authorized officers as of the day and year
first above written.


                                PHARMACY CORPORATION OF AMERICA,


                                by
                                   /s/ C. Arnold Renschler
                                   --------------------------------------------
                                   Name: C. Arnold Renschler
                                   Title: President and CEO


                                CAPSTONE PHARMACY SERVICES, INC.,


                                by
                                   /s/ James Shelton
                                   --------------------------------------------
                                   Name: James Shelton
                                   Title: Executive Vice President and CFO


                                THE CHASE MANHATTAN BANK, individually and as
                                Administrative Agent,

                                by
                                   /s/ Joan F. Garvin
                                   --------------------------------------------
                                   Name: Joan F. Garvin
                                   Title: Managing Director


                                CIBC INC.,


                                by
                                   /s/ Elizabeth Fischer
                                   --------------------------------------------
                                   Name: Elizabeth Fischer
                                   Title: Executive Director


                                CIBC OPPENHEIMER CORP., as Syndication Agent,


                                by
                                   /s/ Elizabeth Fischer
                                   --------------------------------------------
                                   Name: Elizabeth Fischer
                                   Title: Executive Director

<PAGE>   50



                                  BANK OF AMERICA NATIONAL TRUST AND
                                  SAVINGS ASSOCIATION, as Documentation Agent,


                                     by
                                         /s/ Anthony L. Trunzo
                                         --------------------------------------
                                         Name: Anthony L. Trunzo
                                         Title: Managing Director


                                  NATIONSBANK OF TEXAS N.A.,


                                     by
                                         /s/ F. Scott Singhoff
                                         --------------------------------------
                                         Name: F. Scott Singhoff
                                         Title: Senior Vice President


                                  BANK OF MONTREAL,


                                     by
                                         /s/ Peter W. Steelman
                                         --------------------------------------
                                         Name: Peter W. Steelman
                                         Title: Director


                                  BARNETT BANK, N.A. TAMPA,


                                     by
                                         /s/ Kimberly A. Bruce
                                         --------------------------------------
                                         Name: Kimberly A. Bruce
                                         Title: Vice President


                                  THE FIRST NATIONAL BANK OF CHICAGO


                                     by
                                         /s/ Susan M. Giertych
                                         --------------------------------------
                                         Name: Susan M. Giertych
                                         Title: Corporate Banking Officer



<PAGE>   51


                                     BANK OF TOKYO-MITSUBISHI TRUST COMPANY,


                                         by
                                             /s/ Douglas J. Weir
                                             ----------------------------------
                                             Name: Douglas J. Weir
                                             Title: Vice President


                                     BANQUE PARIBAS,


                                         by
                                             /s/ Larry Robinson
                                             ----------------------------------
                                             Name: Larry Robinson
                                             Title: Vice President

                                         by
                                             /s/ Scott Clingan
                                             ----------------------------------
                                             Name: Scott Clingan
                                             Title: Vice President


                                     THE BANK OF NEW YORK,


                                         by
                                             /s/ David C. Siegel
                                             ----------------------------------
                                             Name: David C. Siegel
                                             Title: Vice President


                                     CORESTATES BANK, N.A.,


                                         by
                                             /s/ Deidre L. McAleer
                                             ----------------------------------
                                             Name: Deidre L. McAleer
                                             Title: Vice President


                                     FLEET NATIONAL BANK,


                                         by
                                             /s/ Lynn Wiatrowski
                                             ----------------------------------
                                             Name: Lynn Wiatrowski
                                             Title: Senior Vice President


<PAGE>   52





                                    CREDIT LYONNAIS,


                                      by
                                         /s/ John C. Oberle
                                         --------------------------------------
                                         Name: John C. Oberle
                                         Title: Vice President


                                    COOPERATIEVE CENTRALERAIFFEISEN-
                                    BOERENLEEENBANK B.A. RABOBANK
                                    NEDERLAND NEW YORK BRANCH,


                                      by
                                         /s/ J. Walter Bland
                                         --------------------------------------
                                         Name: J. Walter Bland
                                         Title: Vice President

                                      by
                                         /s/ W. Jeffrey Vollack
                                         --------------------------------------
                                         Name: W. Jeffrey Vollack
                                         Title: Senior Credit Officer and
                                                Senior Vice President


                                    SUNTRUST BANK, CENTRAL FLORIDA, N.A.,


                                      by
                                         /s/ Janet P. Sammons
                                         --------------------------------------
                                         Name: Janet P. Sammons
                                         Title: Vice President