Document:

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                                                                   Exhibit 10.17

                              MCKESSON CORPORATION
                         1989 MANAGEMENT INCENTIVE PLAN

                           Amended as of July 25, 2001

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                              MCKESSON CORPORATION
                         1989 MANAGEMENT INCENTIVE PLAN

                           AMENDED AS OF JULY 25, 2001

        The name of this plan shall be the McKesson Corporation 1989 Management
Incentive Plan. This Plan replaces in their entirety both the Company's
Management Incentive Plan and its Performance Award Plan for Key Employees. This
Plan is effective for fiscal years of the Company commencing on and after April
1, 1989. This Plan was last approved by the stockholders of the Corporation on
July 25, 2001.

A.      PURPOSE

        The purpose of the Plan is to attract, retain and motivate key employees
by providing cash incentive awards to designated executive, managerial and
professional employees of the Company, its subsidiaries and affiliates. The Plan
is designed to link managers' interests more closely with the interests of the
Company's shareholders.

        The Plan is established as a single incentive plan to reward designated
executives, managers and professionals who contribute to shareholder value. Each
Participant's award will take into account corporate performance as well as,
where appropriate, his or her own business unit's performance. The Plan also
provides that awards will reflect individual performance, subject to Article G.
Incentive awards paid under this Plan are intended to qualify as
performance-based compensation deductible by the Company under the Code.

B.      ADMINISTRATION

        The Compensation Committee of the Board of Directors ("Committee") shall
have full power and authority, subject to the provisions of the Plan, to review
and approve the designation of Participants and to promulgate such rules and
regulations as it deems necessary for the proper administration of the Plan, to
interpret the provisions and supervise the administration of the Plan, and to
take all action in connection therewith or in relation to the Plan as it deems
necessary or advisable. Decisions and selections of the Committee shall be made
by a majority of its members and, if made pursuant to the provisions of the
Plan, shall be final. Any decision reduced to writing and signed by all of the
members of the Committee shall be fully effective as if it had been made at a
meeting duly held. The Committee shall consist solely of Disinterested Persons,
in conformance with Section 162(m) of the Code ("Section 162(m)").

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C.      PARTICIPATION

        1. ELIGIBILITY - EXECUTIVES, MANAGERS AND PROFESSIONALS

           Only active employees of the Company, its subsidiaries or affiliates
who are employed in an executive, managerial or professional capacity may be
designated as Participants under the Plan.

        2. DESIGNATION AND REMOVAL OF PARTICIPANTS

           No person shall be entitled to any award under this Plan for any Year
unless he or she is so designated as a Participant for that Year. The Chief
Executive Officer (CEO) of the Company and such other persons as the CEO may
designate, shall recommend to the Committee employees (who may include such
recommending persons) for selection as Participants. The Committee shall review
and approve Plan Participants recommended by management from among those
employees who are eligible to participate. The Committee may add to or delete
individuals from the list of designated Participants at any time and from time
to time, at its sole discretion.

        3. NOTICE OF PARTICIPATION

           As soon as reasonably practicable, each person who is a Participant
in the Plan for a Year will be notified.

D.      INDIVIDUAL TARGET AWARDS FOR PARTICIPANTS

        1. TARGETS, IN GENERAL

           At the beginning of each Year, an Individual Target Award shall be
established for each Participant. An Individual Target Award shall only be a
target and the amount of the target may or may not be paid to the Participant.
Establishment of an Individual Target Award for an employee for any Year shall
not imply or require that an Individual Target Award be set for any subsequent
year. The amount of any actual award paid to any Participant may be greater or
less than this target. As set forth in paragraph F4 below (but subject to the
limitations applicable to Covered Employees contained in Article G), the actual
award may be as much as three times target or as low as zero for any Year. The
establishment of an Individual Target Award for an employee shall not affect the
right of the Company, its subsidiaries or affiliates to terminate, with or
without cause, such employee's employment at any time.

        2. PERCENTAGE OF BASE SALARY

           Individual Target Awards shall be a percentage of the Participant's
base salary reviewed and approved by the Committee in its sole discretion.

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E.      BASIS OF AWARDS

        Awards will be based on contribution to shareholder value and individual
performance. The Committee shall establish measures, which may include financial
and non-financial objectives ("Performance Goals"), to calculate the shareholder
value contribution for each segment of the Company. These Performance Goals
shall be determined by the Committee in advance of each Year or such period as
may be permitted by the regulations issued under Section 162(m), and shall be
based on one or more of the following criteria: (i) the attainment of a
specified percentage return on total capital employed by the Company (or a
subsidiary or division of the Company); (ii) the attainment of a specified
percentage return on total stockholder equity of the Company; (iii) the
attainment of a specified percentage increase in earnings per share from
continuing operations; (iv) the attainment of a specified percentage increase in
Net Income of the Company; (v) the attainment of a specified percentage increase
in profit before taxation of the Company (or a subsidiary or division of the
Company); (vi) the attainment of a specified percentage increase in revenues of
the Company (or a subsidiary or division of the Company); and (vii) the
attainment of profit after-tax at specified levels of equity investment. In
addition, such Performance Goals may be based upon the attainment of specified
levels of Company performance under one or more of the measures described above
relative to the performance of other corporations.

        Awards may be based on performance against objectives for more than one
segment of the Company. For example, awards for corporate management will be
based on overall corporate performance against objectives, but awards for a
unit's management may be based on a combination of corporate, unit and sub-unit
performance against objectives.

        Subject to the limitations set forth in Article G below, individual
performance of each Participant will also be measured and used in determining
awards under this Plan.

F.      AWARD DETERMINATION

        1. AWARD DETERMINED BY COMMITTEE

           After any Year for which an Individual Target Award is established
for a Participant under this Plan, the Committee shall review and approve,
modify or disapprove the amount, if any, to be paid to the Participant for the
Year. The amount paid shall be the Individual Target Award adjusted to reflect
both the Company's financial performance and the Participant's individual
performance. All awards will be subject to the sole discretion of the Committee.

        2. FINANCIAL PERFORMANCE

           Individual Target Award amounts will be modified by achievement of
financial objectives by the Company and relevant units and sub-units.
Performance results against financial objectives shall be reviewed and approved
by the Committee. The Committee may as a result of this review modify or change
objectives or performance results for the Year as it determines to be necessary
or appropriate to take into account changes during the year including,

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but not limited to, changes in accounting methods, acquisitions or divestitures,
and unusual or non-recurring financial or other events, to the extent not
precluded by Section 162(m).

        3. INDIVIDUAL PERFORMANCE

           Any Individual Target Award, adjusted to reflect financial
performance, will be further adjusted with the review and approval of the
Committee to give full weight to the Participant's individual performance during
the Year.

        4. OVERALL EFFECT

           The combination of any financial performance adjustment and
individual performance adjustment may increase the amount paid under this Plan
to a Participant for any Year to as much as three times the Individual Target
Award, and may reduce any amount payable to zero, subject to Article G.

G.      PROCEDURES APPLICABLE TO CERTAIN DESIGNATED PARTICIPANTS

        Awards under the Plan to Participants who are Covered Employees shall be
subject to preestablished Performance Goals as set forth herein. Notwithstanding
the provisions of Paragraph F.3 above, the Committee shall not have discretion
to modify the terms of awards to such Participants except as specifically set
forth in this Article G.

        1. TARGET AWARD. At the beginning of a Year, the Committee shall
establish Individual Target Awards to such of the Participants who may be
Covered Employees, payment of which shall be conditioned upon satisfaction of
specific Performance Goals for the Year established by the Committee in writing
in advance of the Year, or within such period as may be permitted by regulations
issued under Section 162(m) of the Code. The extent, if any, to which an Award
will be payable will be based upon the degree of achievement of the Performance
Goals; provided, however, that the Committee may, in its sole discretion, reduce
some or all of the amount which would otherwise be payable with respect to an
Award.

        2. PERFORMANCE GOALS. The Performance Goals established by the Committee
shall be the same as those objectives set for all Plan Participants and shall be
based on one or more of the criteria set forth in Article E above.

        3. PAYMENT OF AWARDS. At the time the Performance Goals are established,
the Committee shall prescribe a formula to determine the percentage of the
Individual Target Award which may be payable based upon the degree of attainment
of the Performance Goals during the Year. If the minimum Performance Goals
established by the Committee are not met, no payment will be made to a
Participant who is a Covered Employee. To the extent that the minimum
Performance Goals are satisfied or surpassed, and upon written certification by
the Committee that the Performance Goals have been satisfied to a particular
extent, payment of the award shall be made on the Payment Date in accordance
with the prescribed formula based upon a percentage of the Individual Target
Award unless the Committee determines, in its sole discretion, to reduce the
payment to be made.

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        4. MAXIMUM AWARD. The maximum award payable to any Participant who is a
Covered Employee for any Year shall not exceed two percent (2%) of the Company's
Net Income for that Year.

H.      ELECTIONS

        1. ELECTION TO DEFER PAYMENT. At the time established under the
Company's Deferred Compensation Administration Plan II ("DCAP II"), any
Participant who is eligible to participate in DCAP II may irrevocably elect, in
writing and in accordance with DCAP II, to defer his or her award under this
Plan so it is paid at the time and in the manner of, and subject to the terms
and conditions provided by, DCAP II. If an election to defer an award is not
made, then any award under this Plan shall be paid in a single sum to the
Participant as soon as reasonably practicable after the amount of the award is
determined. Notwithstanding the above provisions, no amount shall be deferred
for the Year under DCAP II unless the actual award under this Plan for that Year
is at least $5,000. No awards may be deferred by a Participant under DCAP II
unless he or she is an active employee of the Company as of the end of the Year.

        2. ELECTION TO RECEIVE STOCK OPTION GRANT IN LIEU OF AWARD UNDER THE
PLAN. Prior to the end of a calendar year, any Participant may irrevocably
elect, in writing on the form prescribed by the Committee, to receive a stock
option grant under the 1994 Stock Option and Restricted Stock Plan in lieu of
all or a portion of such Participant's award under this Plan for the Year in
which that calendar year ends. Annually management of the Company shall
determine the rate at which stock option grants will be made in lieu of an award
under the Plan and that conversion rate shall be communicated to Participants
prior to the deadline for making the election described in the preceding
sentence. The minimum number of option shares that a Participant may elect to
receive pursuant to such election is 500, subject to adjustment in the event of
a stock split, stock dividend, consolidation or other similar recapitalization
involving the capital stock of the Company. In addition, the Company annually
shall prescribe a maximum portion of a Participant's Target Award that may be
made subject to an election to receive a stock option grant in lieu of an award
under the Plan. If for any reason the Company does not make the stock option
grant contemplated by the Participant's election, the Participant shall be
deemed to have elected to make a deferral election pursuant to Section H.1 of
the award that was the subject of the election to receive a stock option.

I.      NO MANAGEMENT INCENTIVE FUND

        Awards paid under this Plan shall not be based on or payable from a
"pool" or a "Management Incentive Fund".

J.      EMPLOYMENT AT YEAR END GENERALLY REQUIRED FOR AWARD

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        No award shall be made to any Participant who is not an active employee
of the Company or one of its subsidiaries or affiliates at the end of the Year;
provided, however, that the Committee, in its sole and absolute discretion, may
make pro-rata awards to Participants during a year in circumstances that
Committee deems appropriate including, but not limited to, a Participant's
death, disability, retirement or other termination of employment during such
Year. Any such pro-rated awards shall be determined by the Committee in
accordance with Section F above after taking into account the portion of the
Year then completed.

K.      NONASSIGNMENT AND PARTICIPANTS ARE GENERAL CREDITORS

        The interest of any Participant under the Plan shall not be assignable
either by voluntary or involuntary assignment or by operation of law, except by
designation of a beneficiary or beneficiaries to the extent allowed under the
Company's DCAP.

L.      AMENDMENT OR TERMINATION

        While the Company hopes to continue the Plan indefinitely, it reserves
the right in its Board of Directors to amend, suspend or terminate the Plan or
adopt a new plan at any time; provided that no such amendment shall (i) without
prior approval of the Company's stockholders, alter the business criteria on
which the Performance Goals may be based, increase the maximum amount set forth
in Paragraph F.4 above, or modify the requirements as to eligibility for
participation in the Plan, or (ii) retroactively and adversely affect the
payment of any award previously made. In case any one or more of the provisions
contained in the Plan shall for any reason be held to be invalid, illegal or
unenforceable in any respect, such invalidity, illegality or unenforceability
shall not affect any other provision of the Plan, but the Plan shall be
construed as if such invalid, illegal or unenforceable provisions had never been
contained herein.

M.      INTERPRETATION

        This Plan is intended to comply with Section 162(m), and all provisions
contained herein shall be construed and interpreted in a manner to so comply.

N.      DEFINITIONS

        "Code" shall mean the Internal Revenue Code of 1986, as amended.

        "Committee" means the Compensation Committee of the Board of Directors
of McKesson HBOC, Inc..

        "Company" means McKesson Corporation, a Delaware corporation.

        "Covered Employees" shall mean eligible Participants designated by the
Committee who are, or are expected to be, "covered employees" within the meaning
of Section 162(m) of the Code for the Year in which an award is payable
hereunder.

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        "Disinterested Person" shall mean a member of the Board of Directors who
qualifies as an "outside director" for purposes of Section 162(m) of the Code.

        "Individual Target Award" means the target award established for each
Participant under Article D.

        "Net Income" shall mean after tax income from continuing operations
before special items and the effect of any accounting changes.

        "Participants" mean those employees specifically designated as
Participants for a Year under Article C.

        "Payment Date" shall mean the date following the conclusion of a Year on
which the Committee certifies that applicable Performance Goals have been
satisfied and authorizes payment of corresponding awards.

        "Performance Goals" shall have the meaning set forth in Section E.
hereof.

        "Plan" means the McKesson Corporation 1989 Management Incentive Plan.

        "Year" means the fiscal year of the Company.

Executed effective as of July 25 2001.

McKESSON HBOC, INC.

By    ______________________________________
      William A. Armtrong
      Senior Vice President, Human Resources and Administration

Page 8<PAGE>
                                                                   Exhibit 10.25

                              MCKESSON CORPORATION
                                SECOND AMENDMENT
                               TO CREDIT AGREEMENT

                               (364 DAY FACILITY)

        This SECOND AMENDMENT TO CREDIT AGREEMENT (this "AMENDMENT") is dated as
of October 5, 2001 and entered into by and among McKesson Corporation, a
Delaware corporation formerly known as McKesson HBOC, Inc. (the "COMPANY"), the
financial institutions listed on the signature pages hereof (the "BANKS"), The
Chase Manhattan Bank, as a documentation agent for the Banks, First Union
National Bank, as a documentation agent for the Banks, Bank One, N.A., as a
documentation agent for the Banks, Credit Suisse First Boston, as a
documentation agent for the Banks and Bank of America, N.A., as administrative
agent for the Banks (the "ADMINISTRATIVE AGENT"), for which Banc of America
Securities LLC has acted as sole lead Arranger, and is made with reference to
that certain Credit Agreement dated as of October 22, 1999 (as amended or
otherwise modified up to the date hereof, the "CREDIT AGREEMENT"), by and among
the parties thereto. Capitalized terms used herein without definition shall have
the same meanings herein as set forth in the Credit Agreement.

                                    RECITALS

        WHEREAS, the Company and the Banks desire to amend the Credit Agreement
(a) to extend the Revolving Facility Termination Date for an additional 364 day
period and (b) to modify certain other provisions; and

        WHEREAS, the Company and the Banks have agreed to increase the total
amount of the Commitments to $1,075,000,000;

        NOW, THEREFORE, in consideration of the premises and the agreements,
provisions and covenants herein contained, the parties hereto agree as follows:

SECTION 1.     AMENDMENTS TO THE CREDIT AGREEMENT

1.1     GENERAL

        All references in the Credit Agreement and the Exhibits thereto to the
Company's name are hereby amended by deleting the name "McKesson HBOC, Inc." and
substituting in lieu thereof the name "McKesson Corporation".

1.2     AMENDMENTS TO ARTICLE I: DEFINITIONS

        A. Section 1.1 of the Credit Agreement is hereby amended by deleting the
definition of "Applicable Margin" and substituting the following in lieu
thereof:

<PAGE>

               "Applicable Margin" means, on any date and with respect to each
Offshore Rate Loan (subject to clauses (b) through (d) of the definition of
"Applicable Rating Level"), the applicable margin set forth below based on the
Applicable Rating Level on such date:

<TABLE>
<CAPTION>
    Applicable            Applicable Margin
    Rating Level          (in basis points)
    ------------          ------------------
   <S>                   <C>
    Level I                     42.0
    Level II                    46.0
    Level III                   51.5
    Level IV                    62.5
    Level V                     82.5
    Level VI                   102.5

</TABLE>

        B. Section 1.1 of the Credit Agreement is hereby further amended by
deleting, in the definition of "Revolving Facility Termination Date," the date
"October 9, 2001" and substituting in lieu thereof the date "October 4, 2002".

        C. Section 1.1 of the Credit Agreement is hereby amended by deleting, in
the definition of "Term Loan Maturity Date," the date "October 8, 2002" and
substituting in lieu thereof the date "October 3, 2003".

1.3     AMENDMENT TO ARTICLE II: THE CREDITS

        A. Section 2.1 of the Credit Agreement is hereby amended by deleting the
last sentence thereof and substituting in lieu thereof the following: "On
October 5, 2001, the aggregate of all Commitments hereunder is $1,075,000,000."

        B. Section 2.9(a) of the Credit Agreement is hereby amended by deleting
the date "September 8, 2000" and substituting in lieu thereof the date "August
28, 2001".

        C. Section 2.9 of the Credit Agreement is hereby amended by adding a new
Section 2.9(c) at the end thereof to read as follows:

           (c) Utilization Fees. The Company shall pay to the Administrative
Agent for the account of each Bank a utilization fee during any period when (i)
prior to the Revolving Facility Termination Date, the sum of (x) the Total
Utilization of Facility A Commitments (as such term is defined in the November
1998 Credit Agreement) and (y) the principal amount of all outstanding Loans (as
defined herein) exceeds 30% of the sum of (A) the aggregate of Facility A
Commitments (as such term is defined in the November 1998 Credit Agreement) and
(B) the aggregate of the Commitments or (ii) any Term Loans are outstanding.
Such utilization fee shall accrue from the Closing Date to the Revolving
Facility Termination Date or, if the Term Loans are made, the Term Loan Maturity
Date and shall be due and payable quarterly in arrears on the later of the fifth
Business Day following the end of each calendar quarter or the fifth Business
Day after the Company has received from the Administrative Agent a notice
setting forth the amount of such fee. The utilization fee shall be calculated on
a daily basis and shall be equal, on any given date, to (I) the principal amount
of all outstanding Loans on such date multiplied by (II) .15% per annum.

<PAGE>

1.4     SUBSTITUTION OF SCHEDULE

        A. Schedule 2.1 to the Credit Agreement is hereby amended by deleting
said Schedule 2.1 in its entirety and substituting in place thereof a new
Schedule 2.1 in the form of Annex I to this Amendment.

SECTION 2.     CONDITIONS TO EFFECTIVENESS

        This Amendment shall become effective upon receipt by the Administrative
Agent of all of the following, in form and substance satisfactory to the
Administrative Agent (the date of satisfaction of such condition being referred
to herein as the "SECOND AMENDMENT EFFECTIVE DATE"):

              A. Amendment. This Amendment executed by each party hereto;

              B. Resolutions: Incumbency.

                 (i) Copies of the resolutions of the board of directors of the
        Company authorizing the transactions contemplated hereby, certified as
        of the Second Amendment Effective Date by the Secretary or an Assistant
        Secretary of the Company; and

                 (ii) A certificate of the Secretary or Assistant Secretary of
        the Company, certifying the names and true signatures of the officers of
        the Company authorized to execute, deliver and perform, as applicable,
        this Amendment, and all other Loan Documents to be delivered by it
        hereunder;

              C. Organization Documents; Good Standing. Each of the following
documents:

                 (i) The articles or certificate of incorporation and the bylaws
        of the Company as in effect on the Second Amendment Effective Date,
        certified by the Secretary or Assistant Secretary of the Company as of
        the Second Amendment Effective Date; and

                 (ii) A good standing and tax good standing certificate for the
        Company from the applicable Secretary of State (or similar, applicable
        Governmental Authority) of the States of Delaware and California dated
        as of a recent date;

              D. Legal Opinion. An opinion of Ivan D. Meyerson, Senior Vice
President, General Counsel and Secretary of the Company, addressed to the
Administrative Agent and the Banks, substantially in the form of Exhibit A;

              E. Payment of Fees. Evidence of payment by the Company of all
accrued and unpaid fees, costs and expenses to the extent then due and payable
on the Second Amendment Effective Date, together with Attorney Costs of Bank of
America to the extent invoiced prior to or on the Second Amendment Effective
Date, including any such costs, fees and expenses arising under or referenced in
Sections 2.9 and 10.4 of the Credit Agreement; provided that, notwithstanding
the above, such payment by the Company shall include all accrued and unpaid
facility fees through the Second Amendment Effective Date;

<PAGE>

              F. Company Certificate. A certificate signed by a Responsible
Officer of the Company, dated as of the Second Amendment Effective Date, stating
that:

                 (i) the representations and warranties contained in Section 3
        hereof and in Article V of the Credit Agreement are true and correct on
        and as of such date, as though made on and as of such date;

                 (ii) no Default or Event of Default exists;

                 (iii) there has occurred since March 31, 2001, no event or
        circumstance that has resulted or could reasonably be expected to result
        in a Material Adverse Effect.

SECTION 3.     COMPANY'S REPRESENTATIONS AND WARRANTIES

        In order to induce the Banks to enter into this Amendment and to amend
the Credit Agreement in the manner provided herein, the Company represents and
warrants to each Bank that the following statements are true, correct and
complete:

               A. DUE INCORPORATION, VALID EXISTENCE AND GOOD STANDING;
CORPORATE POWER AND AUTHORITY. The Company is a corporation duly incorporated,
validly existing and in good standing under the laws of the State of Delaware.
The Company has all requisite corporate power and authority to enter into this
Amendment and to carry out the transactions contemplated by, and perform its
obligations under, the Credit Agreement as amended by this Amendment (the
"AMENDED AGREEMENT").

               B. AUTHORIZATION OF AGREEMENTS. The execution and delivery of
this Amendment and the performance of the Amended Agreement have been duly
authorized by all necessary corporate action on the part of the Company.

               C. NO CONFLICT. The execution and delivery by the Company of this
Amendment and the performance by the Company of the Amended Agreement do not and
will not (i) violate any provision of any law or any governmental rule or
regulation applicable to the Company or any of its Subsidiaries, the Certificate
or Articles of Incorporation or Bylaws of the Company or any of its Subsidiaries
or any order, judgment or decree of any court or other agency of government
binding on the Company or any of its Subsidiaries, (ii) conflict with, result in
a breach of or constitute (with due notice or lapse of time or both) a default
under any Contractual Obligation of the Company or any of its Subsidiaries,
(iii) result in or require the creation or imposition of any Lien upon any of
the properties or assets of the Company or any of its Subsidiaries (other than
Liens created under any of the Loan Documents in favor of the Administrative
Agent on behalf of the Banks), or (iv) require any approval of stockholders or
any approval or consent of any Person under any Contractual Obligation of the
Company or any of its Subsidiaries.

               D. GOVERNMENTAL CONSENTS. The execution and delivery by the
Company of this Amendment and the performance by the Company of the Amended
Agreement do not and will not require any registration with, consent or approval
of, or notice to, or other action to, with or by, any Governmental Authority.

<PAGE>

               E. BINDING OBLIGATION. This Amendment has been duly executed and
delivered by the Company and this Amendment and the Amended Agreement are the
legally valid and binding obligations of the Company, enforceable against the
Company in accordance with their respective terms, except as may be limited by
bankruptcy, insolvency, reorganization, moratorium or similar laws relating to
or limiting creditors' rights generally or by equitable principles relating to
enforceability.

               F. ABSENCE OF DEFAULT. No event has occurred and is continuing or
will result from the consummation of the transactions contemplated by this
Amendment that would constitute an Event of Default or a Default.

SECTION 4.     MISCELLANEOUS

               A. REFERENCE TO AND EFFECT ON THE CREDIT AGREEMENT AND THE OTHER
LOAN DOCUMENTS.

                  (i) On and after the Second Amendment Effective Date, each
        reference in the Credit Agreement to "this Agreement", "hereunder",
        "hereof", "herein" or words of like import referring to the Credit
        Agreement, and each reference in the other Loan Documents to the "Credit
        Agreement", "thereunder", "thereof" or words of like import referring to
        the Credit Agreement shall mean and be a reference to the Amended
        Agreement.

                  (ii) Except as specifically amended by this Amendment, the
        Credit Agreement and the other Loan Documents shall remain in full force
        and effect and are hereby ratified and confirmed.

                  (iii) The execution, delivery and performance of this
        Amendment shall not, except as expressly provided herein, constitute a
        waiver of any provision of, or operate as a waiver of any right, power
        or remedy of the Administrative Agent or any Bank under, the Credit
        Agreement or any of the other Loan Documents.

                  (iv) The Credit Agreement, as amended hereby, together with
        the other Loan Documents (including the Fee Letter), embodies the entire
        agreement and understanding among the Company, the Banks and the
        Administrative Agent, and supersedes all prior or contemporaneous
        agreements and understandings of such Persons, verbal or written,
        relating to the subject matter hereof and thereof.

               B. FEES AND EXPENSES. The Company acknowledges that all costs,
fees and expenses as described in Section 10.4 of the Credit Agreement incurred
by the Administrative Agent and its counsel with respect to this Amendment and
the documents and transactions contemplated hereby shall be for the account of
the Company.

               C. HEADINGS. Section and subsection headings in this Amendment
are included herein for convenience of reference only and shall not constitute a
part of this Amendment for any other purpose or be given any substantive effect.

<PAGE>

               D. APPLICABLE LAW. THIS AMENDMENT AND THE RIGHTS AND OBLIGATIONS
OF THE PARTIES HEREUNDER SHALL BE GOVERNED BY, AND SHALL BE CONSTRUED AND
ENFORCED IN ACCORDANCE WITH, THE INTERNAL LAWS OF THE STATE OF CALIFORNIA
(INCLUDING WITHOUT LIMITATION SECTION 1646.5 OF THE CIVIL CODE OF THE STATE OF
CALIFORNIA), WITHOUT REGARD TO CONFLICTS OF LAWS PRINCIPLES.

               E. COUNTERPARTS. This Amendment may be executed in any number of
counterparts and by different parties hereto in separate counterparts, each of
which when so executed and delivered shall be deemed an original, but all such
counterparts together shall constitute but one and the same instrument;
signature pages may be detached from multiple separate counterparts and attached
to a single counterpart so that all signature pages are physically attached to
the same document.

<PAGE>

               IN WITNESS WHEREOF, the parties hereto have caused this Amendment
to be duly executed and delivered by their respective officers thereunto duly
authorized as of the date first written above.

                            MCKESSON CORPORATION

                            By: \s\ William R. Graber
                               ------------------------------------------
                            Name:   William R. Graber
                            Title:  Senior Vice President and Chief Financial
                                    Officer

                            By: \s\ Nicholas A. Loiacono
                               ------------------------------------------
                            Name:   Nicholas A. Loiacono
                            Title: Vice President and Treasurer

                            BANK OF AMERICA, N.A., as Administrative Agent

                            By: \s\ Richard L. Nichols, Jr.
                               ------------------------------------------
                            Name:   Richard L. Nichols, Jr.
                            Title:  Managing Director

                            BANK OF AMERICA, N.A., as a Bank

                            By: \s\ Richard L. Nichols, Jr.
                               ------------------------------------------
                            Name:   Richard L. Nichols, Jr.
                            Title:  Managing Director

                            THE CHASE MANHATTAN BANK, as a documentation
                            agent and as a Bank

                            By: \s\ William P. Rindfuss
                               ------------------------------------------
                            Name:   William P. Rindfuss
                            Title:  Vice President

                            BANK ONE, NA, as documentation agent and as a Bank

                            By: \s\Kandis A. Jaffrey
                               ------------------------------------------
                            Name:   Kandis A. Jaffrey
                            Title:  Vice President

<PAGE>

                            FIRST UNION NATIONAL BANK, as documentation
                            agent and as a Bank

                            By: \s\Jeanette A. Griffin
                               ------------------------------------------
                            Name:   Jeanette A. Griffin
                            Title:  Vice President

                            CREDIT SUISSE FIRST BOSTON, as a Bank

                            By: \s\William S. Lutkins
                               ------------------------------------------
                            Name:   William S. Lutkins
                            Title:  Vice President

                            By: \s\Robert N. Finney
                               ------------------------------------------
                            Name:   Robert N. Finney
                            Title:  Managing Director

                            MELLON BANK, N.A., as a Bank

                            By: \s\John N. Cate
                               ------------------------------------------
                            Name:   John N. Cate
                            Title:  Vice President

                            TORONTO DOMINION (TEXAS), INC., as a Bank

                            By: \s\Alva J. Jones
                               ------------------------------------------
                            Name:   Alva J. Jones
                            Title:  Vice President

                            FLEET NATIONAL BANK, as a Bank

                            By: \s\Carol Castle
                               ------------------------------------------
                            Name:   Carol Castle
                            Title:  Director

                            WELLS FARGO BANK, N.A., as a Bank

                            By: \s\Paul K. Stimpfl
                               ------------------------------------------
                            Name:   Paul K. Stimpfl
                            Title:  Senior Vice President

<PAGE>

                            THE BANK OF NEW YORK, as a Bank

                            By:  \s\Rebecca K. Levine
                               ------------------------------------------
                            Name:   Rebecca K. Levine
                            Title:  Vice President

                            U.S. BANK NATIONAL ASSOCIATION, as a Bank

                            By:  \s\Aaron J. Gordon
                               ------------------------------------------
                            Name:   Aaron J. Gordon
                            Title:  Vice President

                            THE BANK OF NOVA SCOTIA, as a Bank

                            By:  \s\R. P. Reynolds
                               ------------------------------------------
                            Name:   R.P. Reynolds
                            Title:  Director

                            PNC BANK, NATIONAL ASSOCIATION, as a Bank

                            By:  \s\Philip K. Liebscher
                               ------------------------------------------
                            Name:   Philip K. Liebscher
                            Title:  Vice President

                            ALLFIRST BANK, as a Bank

                            By:  \s\Jennifer G. Erickson
                               ------------------------------------------
                            Name:   Jennifer G. Erickson
                            Title:  Vice President

                            FIFTH THIRD BANK, as a Bank

                            By:  \s\Jeff Assenmacher
                               ------------------------------------------
                            Name:   Jeff Assenmacher
                            Title:  Large Corporate Officer

<PAGE>

                            BNP PARIBAS, as a Bank

                            By:  \s\Katherine Wolfe
                               ------------------------------------------
                            Name:   Katherine Wolfe
                            Title:  Director

                            By:  \s\Sandra F. Bertram
                               ------------------------------------------
                            Name:   Sandra F. Bertram
                            Title:  Vice President

                            LEHMAN COMMERCIAL PAPER INC., as a Bank

                            By:  \s\Michelle Swansen
                               ------------------------------------------
                            Name:   Michelle Swansen
                            Title:  Authorized Signatory

<PAGE>

                                     ANNEX I

                                  SCHEDULE 2.1
                           COMMITMENTS/PRO RATA SHARES

                        (Effective as of October 5, 2001)

<TABLE>
<CAPTION>
                                              TOTAL
               BANK                         COMMITMENTS            PRO RATA SHARES
               ----                         -----------            ---------------
<S>                                       <C>                      <C>
Bank of America, N.A. .............       $  161,666,666.67        15.038759690%
The Chase Manhattan Bank ..........       $  160,000,000.00        14.883720930%
Bank One, N.A. ....................       $   83,333,333.33         7.751937984%
First Union National Bank .........       $  133,333,333.00        12.403100744%
Credit Suisse First Boston ........       $  125,000,000.00        11.627906977%
Mellon Bank, N.A. .................       $   16,666,667.00         1.550387628%
Toronto Dominion (Texas), Inc. ....       $   41,666,667.00         3.875969023%
Wells Fargo Bank, N.A. ............       $   50,000,000.00         4.651162791%
The Bank of New York ..............       $   33,333,333.33         3.100775193%
U.S. Bank National Association ....       $   53,333,333.00         4.961240279%
The Bank of Nova Scotia ...........       $   50,000,000.00         4.651162791%
PNC Bank, National Association ....       $   10,000,000.00         0.930232558%
Allfirst Bank .....................       $   16,666,666.67         1.550387597%
Fifth Third Bank ..................       $   15,000,000.00         1.395348837%
Fleet National Bank ...............       $   50,000,000.00         4.651162791%
BNP Paribas .......................       $   25,000,000.00         2.325581395%
Lehman Commercial Paper Inc .......       $   50,000,000.00         4.651162791%

Totals: ...........................       $1,075,000,000.00                 100%

</TABLE>

                                            A-1

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00040-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00040-of-00352.parquet"}]]