Document:

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                                                                    EXHIBIT 4.29

                               THIRD AMENDMENT TO

                  RECEIVABLES PURCHASE AND SERVICING AGREEMENT

                                       AND

                                     ANNEX X

          THIS THIRD AMENDMENT TO RECEIVABLES PURCHASE AND SERVICING AGREEMENT
AND ANNEX X, dated as of October 1, 2002 (this "Third Amendment") relates to (i)
that certain Receivables Purchase and Servicing Agreement dated as of December
20, 2000, as amended by that certain First Amendment dated as of August 29,
2001, and as amended by that certain Second Amendment dated as of December 21,
2001, among Blue Hill, the Servicer, the Purchasers and the Administrative Agent
(each as defined below) (the "Purchase Agreement"), (ii) that certain Sale and
Contribution Agreement dated as of December 20, 2000, between Blue Hill (as
defined below) and the Originator (as defined below) (the "Sale and Contribution
Agreement"), and (iii) Annex X to the Sale and Contribution Agreement and the
Receivables Purchase and Servicing Agreement dated as of December 20, 2000, as
amended by that certain First Amendment dated as of August 29, 2001, and as
amended by that certain Second Amendment dated as of December 21, 2001 ("Annex
X"), and is entered into by and among BLUE HILL II, INC., a Delaware corporation
("Blue Hill"), AMERISOURCEBERGEN DRUG CORPORATION, a Delaware corporation, as
successor by merger to Bergen Brunswig Drug Company, a California corporation,
as the originator (in such capacity, the "Originator") and as the servicer (in
such capacity, the "Servicer"), REDWOOD RECEIVABLES CORPORATION ("Redwood"), as
the conduit purchaser (the "Conduit Purchaser"), and GENERAL ELECTRIC CAPITAL
CORPORATION ("GECC"), as the committed purchaser (the "Committed Purchaser",
together with the Conduit Purchaser, the "Purchasers") and as administrative
agent for the Purchasers ("Administrative Agent"). Capitalized terms used and
not otherwise defined herein shall have the meanings assigned to them in Annex
X.

                              W I T N E S S E T H

          WHEREAS, Blue Hill, the Servicer, the Purchasers and Administrative
Agent have entered into the Purchase Agreement;

          WHEREAS, Blue Hill and the Originator have entered into the Sale and
Contribution Agreement;

          WHEREAS, effective October 1, 2002, Bergen Brunswig and AmeriSource
Corporation, a Delaware corporation ("ASC"), shall have effectuated a merger
(the "Merger"), by which Bergen Brunswig shall have merged into ASC and in
connection therewith ASC shall have changed its name to AmerisourceBergen Drug
Corporation;

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          WHEREAS, ASC as seller and AmeriSource Receivables Financial
Corporation, a Delaware corporation ("ARFC"), as buyer have entered into that
certain Purchase Agreement, dated as of May 14, 1999, as amended by that certain
First Amendment to Purchase Agreement dated as of May 16, 2000 (the "ASC/ARFC
Purchase Agreement") pursuant to which ARFC has purchased Receivables originated
by ASC (the "ASC Receivables");

          WHEREAS, ARFC as seller, ASC as servicer, Amerisource Health
Corporation as guarantor, Delaware Funding Corporation ("DFC") as buyer and
JPMorgan Chase Bank (f/k/a Morgan Guaranty Trust Company of New York) ("JPMorgan
Chase") as administrative agent, have entered into that certain Receivables
Purchase Agreement, dated as of May 14, 1999, as amended by that certain First
Amendment dated as of May 12, 2000, that certain Second Amendment dated as of
May 26, 2000, that certain Third Amendment dated as of October 17, 2000, that
certain Fourth Amendment dated as of August 29, 2001, that certain Fifth
Amendment dated as of November 7, 2001, that certain Sixth Amendment dated as of
November 30, 2001, that certain Seventh Amendment dated as of February 7, 2002,
that certain Eighth Amendment dated as of August 8, 2002, and that certain Ninth
Amendment dated as of the date hereof (the "ARFC/JPMorgan Chase Purchase
Agreement"), pursuant to which ARFC has sold undivided percentage ownership
interests in the ASC Receivables and related collateral to DFC;

          WHEREAS, Blue Hill and the Servicer have requested that the Purchase
Agreement be amended to reflect the Merger and to distinguish the Receivables
sold pursuant to the Sale and Contribution Agreement and the Purchase Agreement
from the Receivables sold pursuant to the ASC/ARFC Purchase Agreement and the
ARFC/JPMorgan Chase Purchase Agreement, and Blue Hill, the Originator, the
Servicer, the Purchasers and the Administrative Agent (collectively, the
"Parties") have mutually requested that Annex X be amended to reflect the
foregoing (the "Amendments");

          WHEREAS, the Parties are willing to so effect the Amendments on the
terms and conditions set forth herein.

          NOW, THEREFORE, in consideration of the above premises, the Parties
agree as follows:

    1.    Definitions and Usage. Any reference herein to Section, Exhibit or
Schedule shall, unless otherwise specified, refer to such Section, Exhibit or
Schedule hereof, in its entirety.

    2.    Amendments to the Purchase Agreement. Upon the Third Amendment
Effective Date, the Purchase Agreement is hereby amended as follows:

           a.  By deleting each reference therein to "Bergen Brunswig Drug
    Company, a California corporation" and replacing it with "AmerisourceBergen
    Drug Corporation, a Delaware corporation", and by deleting each reference
    therein to "Bergen Brunswig Drug Company" and replacing it with
    "AmerisourceBergen Drug Corporation".

          b.   By deleting the reference in the preamble to "GENERAL ELECTRIC
    CAPITAL CORPORATION, a New York corporation" and replacing it with "GENERAL
    ELECTRIC CAPITAL CORPORATION, a Delaware corporation".

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    c.    By deleting the text of Recital B in its entirety and substituting
the following in its stead:

          B.   The Seller has been formed for the purpose of purchasing, or
    otherwise acquiring by capital contribution, certain designated trade
    receivables of the Originator.

    d.    By amending Sections 2.01, 2.04, 4.01(e), 5.01(d), 5.01(e), 5.03(b),
5.03(d), 6.01(a), 7.04, 8.05 and 12.01(a)(iv) by deleting the reference therein
to the defined term "Receivable" and replacing such reference with the defined
term "Transferred Receivable".

    e.    By deleting the last sentence of Section 4.01(a) in its entirety and
substituting the following in its stead:

    Each Significant Subsidiary as defined in the Credit Facility as of the
    Third Amendment Effective Date is set forth on Schedule 4.01(a) hereto.

    f.    By amending Section 4.01(i) by deleting the second, third and fourth
sentences thereto and substituting the following in their stead:

    With respect to each of the Seller and the Originator (i) their respective
    chief executive offices are located at the respective address for notices
    set forth in this Agreement; (ii) the respective offices where all of the
    Records with respect to any Receivables are kept are listed on Schedule I
    hereto; (iii) each, within the last five years, has operated only under the
    trade names identified in Schedule 4.01(i) hereto, and, within the last five
    years, has not changed its name, merged or consolidated with any other
    corporation or been the subject of any proceeding under Title 11, United
    States Code (Bankruptcy), except as disclosed in Schedule 4.01(i) hereto,
    (iv) each is a "registered organization" (as defined in Section 9-102(a)(70)
    of the UCC) and is organized or incorporated in the jurisdiction set forth
    on Schedule 4.01(i) hereto, for purposes of Article 9 of the UCC, and each
    is (and at all times) located in such jurisdiction, and (v) the
    organizational identification number for each is set forth Schedule 4.01(i)
    hereto.

    g.    By deleting Section 5.01(c) in its entirety and substituting the
following in its stead:

          (c)  Furnishing Information and Inspection of Records. The Seller will
    furnish to the Administrative Agent and the Purchasers such information
    (including non-financial information) concerning the Originator's
    Receivables, the Transferred Receivables and the Seller Collateral as the
    Administrative Agent or a Purchaser may reasonably request. Twice a year
    (and at any time during the continuance of an Incipient Termination Event or
    Termination Event), the Administrative Agent may (at the expense of the
    Seller subject to the limitations set forth

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          in the Fee Letter) have its auditors, which may include an independent
          public accounting firm, conduct an audit of the Records or make test
          verifications of the Originator's Receivables, the Transferred
          Receivables and the Collections with respect to the Originator's
          Receivables and the Transferred Receivables.

          h.   By amending Sections 6.02(a)(iii) and 6.02(b)(iv) by deleting the
reference therein to the defined term "Collections" and replacing such reference
with the phrase "Collections on Transferred Receivables", and by amending
Section 6.02(a)(iv) by deleting the reference therein to the defined term
"Collection" and replacing such reference with the phrase "Collection on a
Transferred Receivable".

          i.   By amending Section 7.01 by deleting the reference therein to
"Contract therefor" and substituting the phrase "the rights and interests under
the Contract therefor as such rights and interests relate to such Transferred
Receivable" in its stead.

          j.   By deleting Section 7.03(a) in its entirety and substituting the
following in its stead:

          (a)  (i) In the event that the Servicer is unable to determine the
          specific Transferred Receivables on which Collections have been
          received from the Obligor thereunder but is able to determine that
          such Collections have been received with respect to Transferred
          Receivables, the parties agree for purposes of this Agreement only
          that such Collections shall be deemed to have been received on such
          Transferred Receivables in the order in which they were originated
          with respect to such Obligor. In the event that the Servicer is unable
          to determine the specific Transferred Receivables on which discounts,
          offsets or other non-cash reductions have been granted or made with
          respect to the Obligor thereunder, the parties agree for purposes of
          this Agreement only that such reductions shall be deemed to have been
          granted or made (i) prior to a Termination Event, on such Transferred
          Receivables as determined by the Servicer, and (ii) from and after the
          occurrence of a Termination Event, on Eligible Receivables in the
          reverse order in which they were originated with respect to such
          Obligor.

          (ii) In the event that the Servicer is unable to determine the
          specific Receivables on which Collections have been received from the
          Obligor thereunder and is unable to determine whether such Collections
          have been received with respect to Transferred Receivables or with
          respect to ARFC Designated Receivables, the parties agree for purposes
          of this Agreement, the Sale and Contribution Agreement, the ASC/ARFC
          Purchase Agreement and the ARFC/JPMorgan Chase Purchase Agreement only
          that such Collections shall be allocated among such Receivables on a
          pro rata basis, based upon the outstanding balance of all Receivables
          in respect of such Obligor net of all Collections and discounts, and
          any other modifications, that reduce the Billed Amount of such
          Receivables.

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    k.    By amending Section 7.03(b) by deleting the reference therein to
"Article VI" and substituting "this Agreement" in its stead.

    l.    By amending Section 7.04 by deleting the reference therein to
"Contract therefor" and substituting the phrase "related rights under the
Contract therefor as such rights relate to such Transferred Receivable" in its
stead.

    m.    By adding the following Section 7.07(d) in the proper alphanumerical
order:

          (d)  Servicer Information. The Servicer shall furnish to the
    Administrative Agent such information with respect to the Receivables
    (including, but not limited to, its procedures for selecting Transferred
    Receivables for sale, its procedures for segregating Transferred Receivables
    from Receivables other than Transferred Receivables, and its standards and
    procedures for selling goods or services on credit) as the Administrative
    Agent may reasonably request.

    n.    By deleting Section 8.06(a) in its entirety and substituting the
following in its stead:

          (a)  Offices and Records. The Seller shall maintain its principal
    place of business and chief executive office and the office at which it
    stores its Records at the respective locations specified in Schedule 4.01(i)
    or, upon 30 days' prior written notice to the Administrative Agent, at such
    other location in a jurisdiction where all action requested by the
    Administrative Agent pursuant to Section 14.15 shall have been taken with
    respect to the Seller Collateral. Each of the Seller and the Servicer shall,
    at its own cost and expense, maintain adequate and complete records of the
    Transferred Receivables and the Seller Collateral and, with respect to the
    Servicer only, all of the Originator's Receivables, including records of any
    and all payments received, credits granted and merchandise returned with
    respect thereto and all other dealings therewith. Each of the Seller and the
    Servicer shall mark conspicuously with a legend, in form and substance
    satisfactory to the Administrative Agent, its books and records, computer
    tapes, computer disks and credit files pertaining to the Seller Collateral,
    and its file cabinets or other storage facilities where it maintains
    information pertaining thereto, to evidence this Agreement and the
    assignment and Liens granted pursuant to this Article VIII and in accordance
    with Section 5.01(d)(ii). Upon the occurrence and during the continuance of
    a Termination Event, the Seller and the Servicer shall deliver and turn over
    such books and records to the Administrative Agent or its representatives at
    any time on demand of the Administrative Agent. Prior to the occurrence of a
    Termination Event and upon notice from the Administrative Agent, the Seller
    and the Servicer shall permit any representative of the Administrative Agent
    to inspect such books and

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                  records and shall provide photocopies thereof to the
                  Administrative Agent as more specifically set forth in Section
                  8.06(b).

                  o.    By deleting Section 9.01(k) in its entirety and
         substituting the following in its stead:

                        (k) there shall have occurred any event which
                  materially adversely impairs in the reasonable judgment of the
                  Administrative Agent the ability of the Servicer to originate
                  Transferred Receivables of a credit quality, taken as a whole,
                  which are at least of the credit quality of the Transferred
                  Receivables, taken as a whole, in the initial Purchase;

                  p.    By deleting 9.01(l) in its entirety and substituting the
         following in its stead:

                        (l)   a Material Adverse Effect has occurred since the
                  Closing Date;

                  q.    By amending Section 14.15(a)(B) by inserting the
         parenthetical phrase "(to the extent related to such Transferred
         Receivable)" immediately following the reference therein to
         "Transferred Receivable".

                  r.    By adding the following Section 14.16 in proper
         alphanumerical order:

                        14.16 Consent to Merger and Acknowledgement of
                  Assignment. The Administrative Agent, the Purchasers and the
                  Seller hereby consent to (a) the merger of Durr Fillauer
                  Medical into Bergen Brunswig, with Bergen Brunswig being the
                  surviving corporation of such merger, (b) the merger of Bergen
                  Brunswig into AmeriSource Corporation, with AmeriSource
                  Corporation being the surviving corporation of such merger and
                  changing its name to AmerisourceBergen Drug in connection
                  therewith, and (c) the merger of C.D. Smith Healthcare, Inc.
                  into AmerisourceBergen Drug, with AmerisourceBergen Drug being
                  the surviving corporation of such merger. AmerisourceBergen
                  Drug hereby assumes all obligations and liabilities of Bergen
                  Brunswig as Servicer hereunder and under the Related
                  Documents.

                  s.    By amending and restating Schedule 4.01(a) in its
         entirety in the form and substance of Annex I, attached hereto and made
         a part hereof.

                  t.    By amending and restating Schedule 4.01(i) in its
         entirety in the form and substance of Annex II, attached hereto and
         made a part hereof.

                  u.    By amending and restating Schedule 4.01(q) in its
         entirety in the form and substance of Annex III, attached hereto and
         made a part hereof.

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                 v.   By amending Annex 5.02(a) by deleting "or" at the end of
         subparagraph (j)(L), replacing the period at the end of subparagraph
         (j)(M) with a semicolon and adding subparagraph (j)(N) in the proper
         alphanumerical order:

                      (N) the occurrence of any "Termination Event" or
                 "Servicing Default" under the ARFC/JPMorgan Chase Purchase
                 Agreement for which notice has been delivered thereby. Prior
                 notice to the taking of any enforcement action by DFC or
                 JPMorgan Chase with respect to any Contract constituting a
                 master contract with an Obligor with respect to which
                 Receivables have been sold to both ARFC and BH2.

         3.      Amendments to Annex X.  Upon the Third Amendment Effective
Date, Annex X is hereby amended as follows:

                 a.   By amending the defined terms "Defaulted Receivable",
         "Dilution Factors", "Excluded Obligor", "Material Adverse Effect" and
         "Records" by deleting the reference therein to the defined term
         "Receivable" and replacing such reference with the defined term
         "Transferred Receivable".

                 b.   By deleting the defined term "Adverse Claim" in its
         entirety and substituting the following in its stead:

                      "Adverse Claim" shall mean any claim of ownership or
                 any Lien, other than any ownership interest or Lien created
                 under the Sale and Contribution Agreement, or the Purchase
                 Agreement, or any Lien created under the Collateral Agent
                 Agreement.

                 c.   By adding the following defined term "Amerisource Bergen
         Drug" in the proper alphabetical order:

                      "AmerisourceBergen Drug" shall mean AmerisourceBergen Drug
                 Corporation, a Delaware corporation.

                 d.   By adding the following defined term "ARFC" in the proper
         alphabetical order:

                      "ARFC" shall mean AmeriSource Receivables Financial
                 Corporation, a Delaware corporation.

                 e.   By adding the following defined term "ARFC Designated
         Distribution Center" in the proper alphabetical order:

                      "ARFC Designated Distribution Center" shall mean any
                 distribution center of the Originator identified on the
                 Designated Receivables Schedule as an "ARFC Designated
                 Distribution Center".

                 f.   By adding the following defined term "ARFC Designated
         Receivables" in the proper alphabetical order:

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                "ARFC Designated Receivables" shall mean, collectively (but
          without duplication), (i) all Receivables that are generated by the
          Originator at any of the ARFC Designated Distribution Centers and (ii)
          all Receivables that are acquired by the Originator pursuant to the
          ASC Affiliate Purchase Agreement.

          g.    By adding the following defined term "ARFC/JPMorgan Chase
    Purchase Agreement" in the proper alphabetical order:

                "ARFC/JPMorgan Chase Purchase Agreement" shall mean that certain
          Receivables Purchase Agreement, dated as of May 14, 1999, among ARFC
          as seller, AmerisourceBergen Drug (f/k/a AmeriSource Corporation) as
          servicer, Amerisource Health Corporation as guarantor, DFC as buyer
          and JPMorgan Chase as administrative agent, as amended by that certain
          First Amendment dated as of May 12, 2000, that certain Second
          Amendment dated as of May 26, 2000, that certain Third Amendment dated
          as of October 17, 2000, that certain Fourth Amendment dated as of
          August 29, 2001, that certain Fifth Amendment dated as of November 7,
          2001, that certain Sixth Amendment dated as of November 30, 2001, that
          certain Seventh Amendment dated as of February 7, 2002, that certain
          Eighth Amendment dated as of August 8, 2002, that certain Ninth
          Amendment dated as of the Third Amendment Effective Date and as may be
          further amended from time to time in accordance with the Third
          Amendment Intercreditor Agreement.

          h.    By adding the following defined term "ASC Affiliate Purchase
    Agreement" in the proper alphabetical order:

                "ASC Affiliate Purchase Agreement" shall mean the Purchase
          Agreement, dated as of May 26, 2000, among each of the sellers party
          thereto from time to time and the Originator, as buyer, as amended by
          that certain First Amendment, dated as of October 1, 2002 and as may
          be further amended from time to time in accordance with the Third
          Amendment Intercreditor Agreement.

          i.    By adding the following defined term "ASC/ARFC Purchase
    Agreement" in the proper alphabetical order:

                "ASC/ARFC Purchase Agreement" shall mean that certain Purchase
          Agreement, dated as of May 14, 1999, between AmerisourceBergen Drug
          (f/k/a AmeriSource Corporation) as originator and ARFC as seller, as
          amended by that certain First Amendment to Purchase Agreement dated as
          of May 26, 2000, that certain Second Amendment to Purchase Agreement
          dated as of October 1, 2002 and as may be further amended from time to
          time in accordance with the Third Amendment Intercreditor Agreement.

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                j.    By deleting the defined term "Bergen Entity" in its
          entirety and substituting the following in its stead:

                      "Bergen Entity" shall mean the Parent, AmerisourceBergen
                Services Corporation, a Delaware corporation (successor by
                merger to Bergen Brunswig Corporation, a New Jersey
                corporation), and the Originator.

                k.    By adding the following defined term "BH2 Designated
          Distribution Center" in the proper alphabetical order:

                      "BH2 Designated Distribution Center" shall mean any
                distribution center of the Originator identified on the
                Designated Receivables Schedule as a "BH2 Designated
                Distribution Center".

                l.    By adding the following defined term "BH2 Designated
          Receivables" in the proper alphabetical order:

                      "BH2 Designated Receivables" shall mean all Receivables
                owned by the Originator that are generated by the Originator at
                any of the BH2 Designated Distribution Centers.

                m.    By amending clause (e)(i) of the defined term "Cash
          Management Event" by deleting it in its entirety and substituting the
          following in its stead:

                      (e)(i) an "Event of Default" shall occur under the Credit
                Facility or a "Termination Event" or "Servicing Default" shall
                occur under the ARFC/JPMorgan Chase Purchase Agreement,

                n.    By adding the following defined term "Consolidated
          Subsidiary" in the proper alphabetical order:

                      "Consolidated Subsidiary" means, at any date, for any
                Person, any Subsidiary or other entity the accounts of which
                would be consolidated under GAAP with those of such Person in
                its consolidated financial statements as of such date.

                o.    By deleting the defined term "Credit and Collection
          Policies" in its entirety and substituting the following in its stead:

                      "Credit and Collection Policies" shall mean the credit,
                collection, customer relations and service policies of the
                Originator, as such relations and policies relate to the
                Transferred Receivables, in effect on the Closing Date, attached
                to the Purchase Agreement as Exhibit A, as the same may from
                time to time be amended, restated, supplemented or otherwise
                modified in accordance with the terms of the Purchase Agreement.

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                p.    By adding the following defined term "Designated
          Receivables Schedule" in the proper alphabetical order:

                      "Designated Receivables Schedule" means Schedule 5.2(p) to
                the Sale and Contribution Agreement.

                q.    By adding the following defined term "Delaware Funding
          Corporation" in the proper alphabetical order:

                      "DFC" shall mean Delaware Funding Corporation, a Delaware
                corporation.

                r.    By adding the following defined term "Distribution Center"
          in the proper alphabetical order:

                      "Distribution Center" shall mean any BH2 Designated
                Distribution Center and any ARFC Designated Distribution Center.

                s.    By deleting the defined term "General Trial Balance" in
          its entirety and substituting the following in its stead:

                      "General Trial Balance" shall mean with respect to the
                Originator and as of any date of determination, the Originator's
                accounts receivable trial balance with respect to BH2 Designated
                Receivables (whether in the form of a computer printout,
                magnetic tape or diskette) as of such date, listing Obligors and
                the BH2 Designated Receivables owing by such Obligors as of such
                date together with the aged Outstanding Balances of such
                Receivables, in form and substance reasonably satisfactory to
                the Seller and the Administrative Agent.

                t.    By adding the defined term "JPMorgan Chase" in the proper
          alphabetical order:

                      "JPMorgan Chase" shall mean JPMorgan Chase Bank (f/k/a
                Morgan Guaranty Trust Company of New York).

                u.    By deleting the defined term "Originator" in its entirety
          and substituting the following in its stead:

                      "Originator" shall mean AmerisourceBergen Drug as the
                seller of BH2 Designated Receivables under the Sale and
                Contribution Agreement.

                v.    By deleting the defined term "Outstanding Balance" in its
          entirety and substituting the following in its stead:

                      "Outstanding Balance" shall mean, with respect to any
                Transferred Receivable and as of any date of determination, the
                amount (which amount shall not be less than zero) equal to (a)
                the Billed Amount thereof,

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                  minus (b) all Collections received from the Obligor thereunder
                  with respect to such Transferred Receivable, minus (c) all
                  discounts to or any other modifications that reduce such
                  Billed Amount; provided, that if after the occurrence or
                  during the continuation of a Termination Event the
                  Administrative Agent or the Servicer makes a determination
                  that all payments by such Obligor with respect to such Billed
                  Amount have been made, the Outstanding Balance shall be zero.

                  w.   By deleting the defined term "Parent" in its entirety and
           substituting the following in its stead:

                       "Parent" shall mean AmerisourceBergen Corporation, a
                  Delaware corporation.

                  x.   By deleting the defined term "Redwood Termination Date"
           in its entirety and substituting the following in its stead:

                  "Redwood Termination Date" shall mean the date elected by
                  Redwood or the Collateral Agent (which election shall be
                  mandatory and immediate upon the occurrence of an event set
                  forth in clause (c), (i) (solely if the events specified in
                  (i) result in all outstanding Tranche Periods (as defined
                  under the ARFC/JPMorgan Chase Purchase Agreement) being ended
                  or the obligations of the Owners (as defined in the
                  ARFC/JPMorgan Chase Purchase Agreement) being terminated, in
                  each case in accordance with Section 7.02 of the ARFC/JPMorgan
                  Chase Purchase Agreement), (j), (k), (l) or (m) below), by
                  notice to the Seller and the Administrative Agent as the
                  Redwood Termination Date; provided, that on such date, one or
                  more of the following events shall have occurred and be
                  continuing: (a) a Seller LOC Draw; (b) the obligations of the
                  Liquidity Lenders to make Liquidity Loans shall have
                  terminated and such Liquidity Lenders shall not have otherwise
                  been replaced or the "Liquidity Termination Date" (as defined
                  in the LAPA) shall have occurred; (c) an event of default
                  under the Collateral Agent Agreement or any other Program
                  Document shall have occurred; (d) the short-term debt rating
                  of a Liquidity Lender shall have been downgraded by a Rating
                  Agency and such Liquidity Lender shall not have been replaced
                  in accordance with the terms of the LAPA within 30 days
                  thereafter; (e) Redwood or the Collateral Agent shall have
                  determined that the funding of Transferred Receivables under
                  the Purchase Agreement is impracticable for any reason
                  whatsoever, including as a result of (i) a drop in or
                  withdrawal of any of the ratings assigned to the Commercial
                  Paper by any Rating Agency, (ii) the imposition of Additional
                  Amounts, (iii) restrictions on the amount of Transferred
                  Receivables Redwood may finance or (iv) the inability of
                  Redwood to issue Commercial Paper; (f) any change in
                  accounting standards shall occur or any pronouncement or
                  release of any accounting or regulatory body (including FASB,
                  AICPA or the Securities and Exchange Commission) shall be
                  issued, or any other change in the interpretation of

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                  accounting standards shall occur, such that all or any portion
                  of the Conduit Purchaser's assets and liabilities are deemed
                  to be consolidated with the assets and liabilities of GE
                  Capital or any of its affiliates; (g) a Termination Event
                  shall have occurred and be continuing; (h) the outstanding
                  loans to the Conduit Purchaser under the LAPA equal or exceed
                  the Conduit Purchaser's Capital Investment at such time and no
                  interest or other amounts are owed to the Conduit Purchaser
                  under the Purchase Agreement or the other Related Documents;
                  (i) any "Termination Event" or "Servicing Default" shall occur
                  under the ARFC/JPMorgan Chase Purchase Agreement; (j)
                  AmeriSourceBergen Drug or any of its Consolidated Subsidiaries
                  shall fail to pay any Debt in excess of $10,000,000 of
                  AmerisourceBergen Drug or any of its Consolidated
                  Subsidiaries, as the case may be, or any interest or premium
                  on such Debt, in either case, when due (whether by scheduled
                  maturity, required prepayment, acceleration, demand or
                  otherwise) and such failure shall continue after the
                  applicable grace period, if any, specified in the agreement or
                  instrument relating to such Debt; or any other default under
                  any agreement or instrument relating to any such Debt or any
                  other event, shall occur and shall continue after the
                  applicable grace period, if any, specified in such agreement
                  or instrument if the effect of such default or event is to
                  accelerate, or to permit the acceleration of, the maturity of
                  such Debt; or a final court decision of $10,000,000 or more
                  shall be rendered against AmerisourceBergen Drug or any of its
                  Consolidated Subsidiaries and (i) such amount remains unpaid
                  and (ii) AmerisourceBergen Drug or the relevant Consolidated
                  Subsidiary does not, in good faith, contest such decision
                  within the relevant statutory period; (k) there shall have
                  occurred any event which materially adversely impairs in the
                  reasonable judgment of the Administrative Agent the ability of
                  the Servicer to distinguish between BH2 Designated Receivables
                  and ARFC Designated Receivables and to segregate Collections
                  relating to ARFC Designated Receivables from Collections
                  relating to BH2 Designated Receivables; (l) a case or
                  proceeding shall have been commenced against ARFC seeking a
                  decree or order in respect of ARFC (i) under the Bankruptcy
                  Code or any other applicable federal, state or foreign
                  bankruptcy or other similar law, (ii) appointing a custodian,
                  receiver, liquidator, assignee, trustee or sequestrator (or
                  similar official) for ARFC or for any substantial part of
                  ARFC's assets, or (iii) ordering the winding-up or liquidation
                  of the affairs of ARFC; (m) ARFC shall (i) file a petition
                  seeking relief under the Bankruptcy Code or any other
                  applicable federal, state or foreign bankruptcy or other
                  similar law, (ii) consent or fail to object in a timely and
                  appropriate manner to the institution of proceedings
                  thereunder or to the filing of any such petition or to the
                  appointment of or taking possession by a custodian, receiver,
                  liquidator, assignee, trustee or sequestrator (or similar
                  official) for ARFC or for any substantial part of ARFC's
                  assets, (iii) make an assignment for the benefit of creditors,
                  or (iv) take any corporate action in furtherance of any of the
                  foregoing; or (n)

                                       12

<PAGE>

                  any breach by JPMorgan Chase of the Third Amendment
                  Intercreditor Agreement;

                  y.   By deleting the defined term "Sale" in its entirety and
           substituting the following in its stead:

                       "Sale" shall mean, with respect to a sale of BH2
                  Designated Receivables under the Sale and Contribution
                  Agreement, a sale of BH2 Designated Receivables by the
                  Originator to the Buyer in accordance with the terms of the
                  Sale and Contribution Agreement.

                  z.   By deleting the defined term "Servicer" in its entirety
           and substituting the following in its stead:

                       "Servicer" shall mean AmerisourceBergen Drug, in its
                  capacity as the Servicer under the Purchase Agreement, or any
                  other Person designated as a Successor Servicer pursuant to
                  the Purchase Agreement.

                  aa.  By adding the following defined term "Third Amendment
           Effective Date" in the proper alphabetical order:

                       "Third Amendment Effective Date" shall mean the Effective
                  Date under (and as defined in) the Third Amendment to
                  Receivables Purchase and Servicing Agreement and Annex X dated
                  as of October 1, 2002, among Blue Hill, the Servicer, the
                  Purchasers and the Administrative Agent.

                  bb.  By adding the defined term "Third Amendment Intercreditor
           Agreement" in the proper alphabetical order:

                       "Third Amendment Intercreditor Agreement" shall mean that
                  certain Third Amendment Intercreditor Agreement dated as of
                  the Third Amendment Effective Date, between JPMorgan Chase, as
                  "Administrative Agent" under the ARFC/JPMorgan Purchase
                  Agreement, and GE Capital, as Administrative Agent under this
                  Agreement, as amended, supplemented or otherwise modified from
                  time to time.

                  cc.  By deleting the defined term "Unapproved Receivable" in
           its entirety and substituting the following in its stead:

                       "Unapproved Receivable" shall mean any BH2 Designated
                  Receivable (a) with respect to which the obligor thereunder is
                  not an Obligor on any BH2 Designated Receivable and whose
                  customer relationship with the Originator arises as a result
                  of the acquisition by such Originator of another Person or (b)
                  that was originated in accordance with standards established
                  by another Person acquired by the Originator, in each case,
                  solely with respect to any such acquisitions that have not
                  been

                                       13

<PAGE>

                  approved in writing by the Administrative Agent and then only
                  for the period prior to any such approval.

           4.     Representations and Warranties of the Originator. The
Originator represents and warrants to Blue Hill that, as of the Third Amendment
Effective Date and after giving effect to this Third Amendment:

                  a.   All of the representations and warranties of the
           Originator contained in this Third Amendment, the Sale and
           Contribution Agreement, the First Amendment to the Sale and
           Contribution Agreement (as defined below) and the other Related
           Documents are true and correct in all material respects on and as of
           the Third Amendment Effective Date, as if then made (other than
           representations and warranties which expressly speak as of a
           different date, which shall be true and correct in all material
           respects as of that date); and

                  b.   No Termination Event or Incipient Termination Event has
           occurred and is continuing or will result after giving effect to this
           Third Amendment.

           5.     Representations and Warranties of Blue Hill and the Servicer.
Each of Blue Hill and the Servicer represents and warrants to the Purchasers and
the Administrative Agent that, as of the Third Amendment Effective Date and
after giving effect to this Third Amendment:

                  a.   All of the representations and warranties of Blue Hill
           and the Servicer contained in this Third Amendment, the Purchase
           Agreement and the other Related Documents are true and correct in all
           material respects on and as of the Third Amendment Effective Date, as
           if then made (other than representations and warranties which
           expressly speak as of a different date, which shall be true and
           correct in all material respects as of that date);

                  b.   Blue Hill is in compliance with Sections 5.01(d) and (e)
           of the Purchase Agreement;

                  c.   After giving effect to the merger transactions described
           in Section 4.16 as added in this Third Amendment, AmerisourceBergen
           Drug will be a Delaware corporation whose organizational
           identification number is 2564484; and

                  d.   No Termination Event or Incipient Termination Event has
           occurred and is continuing or will result after giving effect to this
           Third Amendment.

           6.     Effective  Date. This Third Amendment shall become effective
as of the date first written above (the "Third Amendment Effective Date") upon
the satisfaction of each of the following conditions:

                  a.   The Administrative Agent and Blue Hill shall have
           received each of the following documents, in each case in form and
           substance satisfactory to the Administrative Agent and Blue Hill:

                       i.   counterparts hereof executed by each of the Parties;

                                       14

<PAGE>

                   ii.   an executed First Amendment to the Sale and
         Contribution Agreement, dated as of the date hereof, between Blue Hill
         and the Originator, acknowledged and agreed to by the Administrative
         Agent (the "First Amendment to the Sale and Contribution Agreement")
         together with evidence of the effectiveness of the First Amendment to
         the Sale and Contribution Agreement;

                   iii.  copies of each of the documents required to be
         delivered under Section 4 of the First Amendment to the Sale and
         Contribution Agreement and evidence satisfactory to the Administrative
         Agent that the conditions precedent thereto have been satisfied;

                   iv.   execution copies of that certain Second Amendment to
         Purchase Agreement dated as of the date hereof between
         AmerisourceBergen Drug and ARFC and that certain Ninth Amendment to
         Receivables Purchase Agreement dated as of the date hereof among ARFC,
         AmerisourceBergen Drug, AmerisourceBergen Services Corporation, DFC and
         JPMorgan Chase and evidence satisfactory to the Administrative Agent
         that the conditions precedent thereto have been satisfied or waived;

                   v.    an executed Third Amendment Intercreditor Agreement,
         dated as of the date hereof, between GE Capital and JPMorgan Chase;

                   vi.   a certificate of an officer of the Seller attesting to
         the solvency of Seller;

                   vii.  a certificate of an officer of the Servicer attesting
         to the solvency of Servicer;

                   viii. a certificate of an officer of the Seller certifying,
         among other things, that the representations and warranties contained
         in the Related Documents are correct as of the date hereof;

                   ix.   a certificate of an officer of the Servicer certifying,
         among other things, that the representations and warranties contained
         in the Related Documents are correct as of the date hereof;

                   x.    a certificate of the Secretary or Assistant Secretary
         of the Seller attaching certified certificate of incorporation of the
         Seller, bylaws of the Seller, resolutions authorizing the Third
         Amendment, and an incumbency certificate;

                   xi.   a certificate of the Secretary or Assistant Secretary
         of the Servicer attaching certified certificate of incorporation of the
         Servicer, the documents filed with the Secretary of State of the States
         of Delaware and California with respect to the Merger, bylaws of the
         Servicer, resolutions authorizing the Third Amendment and the Merger,
         and an incumbency certificate;

                                                              THIRD AMENDMENT TO
                                                                RPSA AND ANNEX X

                                       15

<PAGE>

                   xii.  tax and good standing certificates of the Seller in the
         states of California and Delaware (to the extent not provided pursuant
         to clause (iii) above);

                   xiii. tax and good standing certificates of the Servicer in
         the state of California and Delaware (to the extent not provided
         pursuant to clause (iii) above);

                   xiv.  a legal opinion as to true sale and substantive
         consolidation matters delivered by Dechert after giving effect to the
         Third Amendment;

                   xv.   a legal opinion as to security interests,
         enforceability, and corporate matters delivered by Dechert, and in
         addition, a legal opinion delivered by the in-house counsel of the
         Servicer and the Seller, both, after giving effect to the Third
         Amendment;

                   xvi.  letters from Standard and Poor's Corporation confirming
         the A-1+ rating of the commercial paper of Redwood, and from Moody's
         Investors' Service, Inc. confirming the P-1 rating of the commercial
         paper of Redwood; and

                   xvii. such additional documentation as the Administrative
         Agent may reasonably request;

         b. The Administrative Agent shall have received satisfactory results of
     its UCC, tax lien and judgment searches of the Seller, the Servicer, Durr
     Fillauer Medical, C.D. Smith Healthcare, Bergen Brunswig and Amerisource
     Corporation and the Administrative Agent shall have received satisfactory
     evidence of the filing of the financing statement filed with respect to the
     Originator and the amendment financing statement filed with respect to the
     Seller, in each case to give effect to the Merger and the Amendments;

         c. No law, regulation, order, judgment or decree of any Governmental
     Authority shall, and no Party shall have received any notice that
     litigation is pending or threatened which is likely to, enjoin, prohibit or
     restrain the consummation of the transactions contemplated by this Third
     Amendment, except for such laws, regulations, orders or decrees, or pending
     or threatened litigation, that in the aggregate could not reasonably be
     expected to have a Material Adverse Effect;

         d. All of the representations and warranties of Blue Hill, the
     Originator and the Servicer contained in this Third Amendment, the First
     Amendment to Sale and Contribution Agreement and the other Related
     Documents shall be true and correct in all material respects on and as of
     the Third Amendment Effective Date, as if then made (other than
     representations and warranties which expressly speak as of a different
     date, which shall be true and correct in all material respects as of that
     date);

         e. All corporate and other proceedings, and all documents, instruments
     and other legal matters in connection with the transactions contemplated by
     this Third

                                                              THIRD AMENDMENT TO
                                                                RPSA AND ANNEX X

                                       16

<PAGE>

         Amendment and the First Amendment to Sale and Contribution Agreement
         shall be satisfactory in all respects in form and substance to the
         Administrative Agent;

               f. The Administrative Agent shall have completed a collateral
         audit and other due diligence with respect to ASC, AmerisourceBergen
         Drug Corporation, Bergen Brunswig, and Blue Hill and their respective
         Receivables with results satisfactory to the Purchasers and the
         Administrative Agent; and

               g. No Termination Event or Incipient Termination Event shall have
         occurred and be continuing on the Third Amendment Effective Date or
         will result after giving effect to this Third Amendment.

         7.    Reference to and Effect on the Related Documents.

               a. Upon the Third Amendment Effective Date, (i) each reference in
         the Purchase Agreement, or the Sale and Contribution Agreement (as
         amended by the First Amendment to the Sale and Contribution Agreement)
         or any Related Documents to "Annex X" shall mean and be a reference to
         Annex X as amended and supplemented hereby, and (ii) each reference in
         the Purchase Agreement to "this Agreement", "hereunder", "hereof" or
         words of like import, and each reference in the Related Documents to
         the Purchase Agreement shall mean and be a reference to the Purchase
         Agreement as amended and supplemented hereby.

               b. Except to the extent specifically set forth herein, the
         respective provisions of the Purchase Agreement, Annex X and the other
         Related Documents shall not be amended, modified, waived, impaired or
         otherwise affected hereby, and such documents and the Obligations under
         each of them are hereby confirmed as being in full force and effect.

               c. This Third Amendment shall be limited solely to the matters
         expressly set forth herein and shall not (i) constitute an amendment or
         waiver of any other term or condition of the Purchase Agreement, Annex
         X or any other Related Document, (ii) prejudice any right or rights
         which any of the Parties may now have or may have in the future under
         or in connection with the Purchase Agreement, Annex X or any other
         Related Document, (iii) require any of the Parties to agree to a
         similar transaction on a future occasion or (iv) create any right
         herein to another Person or other beneficiary or otherwise, except to
         the extent specifically provided herein.

         8.    Miscellaneous. This Third Amendment is a Related Document. The
headings herein are for convenience of reference only and shall not alter or
otherwise affect the meaning hereof.

         9.    Section Titles. The Section titles in this Third Amendment are
and shall be without substantive meaning or content of any kind whatsoever and
are not a part of the agreement between the parties hereto.

                                                              THIRD AMENDMENT TO
                                                                RPSA AND ANNEX X

                                       17

<PAGE>

         10. Counterparts. This Third Amendment may be executed in any number of
counterparts and by the different parties hereto in separate counterparts, each
of which when so executed and delivered shall be an original, but all of which
shall together constitute one and the same instrument.

         11. GOVERNING LAW. THIS THIRD AMENDMENT, AND ALL MATTERS OF
CONSTRUCTION, VALIDITY AND PERFORMANCE HEREOF, SHALL BE GOVERNED BY, AND
CONSTRUED AND ENFORCED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

         12. No Strict Construction. The parties hereto have participated
jointly in the negotiation and drafting of this Third Amendment. In the event an
ambiguity or question of intent or interpretation arises, this Third Amendment
shall be construed as if drafted jointly by the parties hereto and no
presumption or burden of proof shall arise favoring or disfavoring any party by
virtue of the authorship of any provisions of this Third Amendment.

         13. Waiver by Originator, the Servicer and Blue Hill. Each of the
Originator, the Servicer and Blue Hill hereby waives any claim, defense, demand,
action or suit of any kind or nature whatsoever against the Purchasers or the
Administrative Agent arising on or prior to the date of this Third Amendment in
connection with any of the Related Documents or the transactions contemplated
thereunder.

                                     * * * *

                                                              THIRD AMENDMENT TO
                                                                RPSA AND ANNEX X

                                       18

<PAGE>

           IN WITNESS WHEREOF, Blue Hill, the Originator, the Servicer, the
Purchasers, and the Administrative Agent have caused this Third Amendment to be
executed by their respective officers thereunto duly authorized as of the date
first above written.

                                            BLUE HILL II, INC.

                                            By:  _________________________
                                                 Name:
                                                 Title:

                                            AMERISOURCEBERGEN DRUG CORPORATION,
                                            as successor by merger to Bergen
                                            Brunswig Drug Company, a California
                                            corporation, as Originator and as
                                            Servicer

                                            By:  _________________________
                                                 Name:
                                                 Title:

                               SIGNATURE PAGE TO
                               THIRD AMENDMENT TO
                                RPSA AND ANNEX X

<PAGE>

                                          REDWOOD RECEIVABLES CORPORATION,
                                          as Conduit Purchaser

                                          By:  _________________________
                                               Name:  Craig Winslow
                                               Title: Assistant Secretary

                                          GENERAL ELECTRIC CAPITAL CORPORATION,
                                          as Committed Purchaser

                                          By:  _________________________
                                               Name:  Brian P. Schwinn
                                               Title: Duly Authorized Signatory

                                          GENERAL ELECTRIC CAPITAL CORPORATION,
                                          as Administrative Agent

                                          By:  _________________________
                                               Name:  Brian P. Schwinn
                                               Title: Duly Authorized Signatory

                               SIGNATURE PAGE TO
                               THIRD AMENDMENT TO
                                RPSA AND ANNEX X

<PAGE>

                                     ANNEX I

                                Schedule 4.01(a)

                                 (see attached)

                                                              THIRD AMENDMENT TO
                                                                RPSA AND ANNEX X

<PAGE>

                                    ANNEX II

                                Schedule 4.01(i)

                                 (see attached)

                                                              THIRD AMENDMENT TO
                                                                RPSA AND ANNEX X

<PAGE>

                                    ANNEX III

                                Schedule 4.01(q)

                                 (see attached)

                                                              THIRD AMENDMENT TO
                                                                RPSA AND ANNEX X<PAGE>

                                                                    EXHIBIT 4.30

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

                          THIRD SUPPLEMENTAL INDENTURE

                           Dated as of October 1, 2002

                                  to Indenture

                          Dated as of December 12, 2000

                                      Among

                   AMERISOURCE HEALTH CORPORATION, as Issuer,

                      AMERISOURCE CORPORATION, as Guarantor

                                       and

                    BANK ONE TRUST COMPANY, N.A., as Trustee

                               __________________

             5% Convertible Subordinated Notes due December 1, 2007

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

<PAGE>

         This THIRD SUPPLEMENTAL INDENTURE dated as of October 1, 2002 ("Third
Supplemental Indenture"), is among AMERISOURCE HEALTH CORPORATION, a corporation
duly organized and existing under the laws of the State of Delaware (the
"Company"), AMERISOURCE CORPORATION, a corporation duly organized and existing
under the laws of the State of Delaware, as guarantor (the "Subsidiary
Guarantor"), AMERISOURCEBERGEN CORPORATION, a corporation duly organized and
existing under the laws of the State of Delaware (the "Parent"), the companies
listed on Schedule I attached hereto (individually, an "Additional Subsidiary
Guarantor," and collectively, the "Additional Subsidiary Guarantors"),
subsidiaries of the Company, and BANK ONE TRUST COMPANY, N.A., a national
banking association organized under the laws of the United States, as Trustee
hereunder (the "Trustee").

                                    RECITALS

         WHEREAS, the Company, the Subsidiary Guarantor and the Trustee have
heretofore duly executed and delivered an Indenture dated as of December 12,
2000, with respect to the 5% Convertible Subordinated Notes due December 1, 2007
of the Company (the "Securities"), and such obligations of the Company were
jointly and severally assumed by the Parent pursuant to the First Supplemental
Indenture dated as of August 29, 2001 among the Company, the Subsidiary
Guarantor, the Parent and the Trustee and guaranteed by the Additional
Subsidiary Guarantors pursuant to the Second Supplemental Indenture dated as of
December 27, 2001 among the Company, the Subsidiary Guarantor, the Parent, the
Additional Subsidiary Guarantors and the Trustee (as supplemented, the
"Indenture"); and

         WHEREAS, Section 8.1 of the Indenture provides that without the consent
of any Holders of Securities the Company, when authorized by a Board Resolution
and the Trustee, at any time and from time to time, may enter into one or more
indentures supplemental hereto to make any change that would not adversely
affect the interests of the Holders of Securities;

         WHEREAS, the Board of Directors of the Company, the Board of Directors
of the Subsidiary Guarantor, the Board of Directors of the Parent and the
respective Boards of Directors of each Additional Subsidiary Guarantor have
authorized the execution of this Third Supplemental Indenture and the delivery
hereof to the Trustee for the purpose of modifying the Indenture as set forth
herein;

         WHEREAS, in all other respects all actions have been taken necessary to
make this Third Supplemental Indenture the valid, binding and legal obligation
of the Company, the Subsidiary Guarantor, the Parent and each Additional
Subsidiary Guarantor in accordance with its terms;

         NOW, THEREFORE, in consideration of the premises, and of other good and
valuable consideration, the receipt and sufficiency of which is hereby
acknowledged, the Company, the Subsidiary Guarantor, the Parent and each
Additional Subsidiary Guarantor hereby covenants and agrees with the Trustee as
follows:

<PAGE>

         SECTION 1. Capitalized Terms. All capitalized terms not otherwise
defined herein shall have the meanings ascribed to them in the Indenture.

         SECTION 2. Additional Subsidiary Guarantors May Consolidate, Etc. on
Certain Terms. Nothing contained in the Indenture or in any of the Securities
shall restrict, limit or prevent any consolidation or merger of any Additional
Subsidiary Guarantor with or into the Company, the Parent, the Subsidiary
Guarantor or any other Additional Subsidiary Guarantor or shall prevent any sale
or conveyance of the assets of any Additional Subsidiary Guarantor to the
Company, the Parent, the Subsidiary Guarantor or any other Additional Subsidiary
Guarantor. Upon any such consolidation, merger, sale or conveyance, such
Additional Subsidiary Guarantor will be released from its Guarantee in
accordance with Section 14.4 of the Indenture.

         SECTION 3. Release of Additional Subsidiary Guarantor. The Guarantee of
an Additional Subsidiary Guarantor under the Indenture shall no longer have any
force or effect if such Additional Subsidiary Guarantor consolidates, merges or
otherwise conveys, transfers or disposes of all or substantially all of its
assets to the Company or the Parent.

         SECTION 4. The Indenture. This Third Supplemental Indenture is
expressly made supplemental to and shall form a part of the Indenture and is
made subject to all the conditions, covenants and warranties contained in the
Indenture. Nothing in this Third Supplemental Indenture is intended to or shall
provide any rights to any parties other than those expressly contemplated by
this Third Supplemental Indenture. Each reference in the Indenture to "this
Indenture," "hereunder," "hereof," and words of like import referring to the
Indenture and each reference in any other transaction document relating to the
Indenture shall mean the Indenture as amended hereby.

         SECTION 5. Legend. There shall be stamped, overprinted, typed or
otherwise noted on the Notes authenticated and delivered after the date hereof
the following legend:

         "THE INDENTURE GOVERNING THIS NOTE HAS BEEN AMENDED BY A
         SUPPLEMENTAL INDENTURE DATED AS OF OCTOBER 1, 2002. REFERENCE
         IS MADE TO SUCH SUPPLEMENTAL INDENTURE FOR A STATEMENT OF THE
         AMENDED RIGHTS AND OBLIGATIONS OF THE COMPANY AND HOLDERS OF
         THE NOTES."

         SECTION 6. Trustee. The Trustee makes no representations as to the
validity or sufficiency of this Third Supplemental Indenture or the Indenture as
hereby supplemented, or the due execution hereof by the Company, the Subsidiary
Guarantor, the Parent and the Additional Subsidiary Guarantors, or the recitals
and statements contained herein, all of which recitals and statements are made
solely by the Company, the Subsidiary Guarantor, the Parent and the Additional
Subsidiary Guarantors, as the case may be.

         SECTION 7. Governing Law. This Third Supplemental Indenture shall be
governed by and construed in accordance with the laws of the State of New York,
the United States of America, without regard to the principles of conflicts of
laws.

                                        2

<PAGE>

         SECTION 8. Counterparts. This Third Supplemental Indenture may be
simultaneously executed in any number of counterparts, each of which shall be an
original, but such counterparts shall together constitute but one and the same
instrument.

         SECTION 9. No Adverse Affect. Other than changes required or permitted
pursuant to the Indenture, nothing in this Third Supplemental Indenture shall
effect any change to the Indenture that would adversely affect the interests of
the Holders of the Securities.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                                        3

<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this Third
Supplemental Indenture to be duly executed as of the day and year first written
above.

                                   Additional Subsidiary Guarantors:

                                   Alliance Health Services, Inc.
                                   Alliance Home Health Care, Inc.
                                   AmeriSource Health Services Corporation
                                   AmeriSource Sales Corporation
                                   ASD Hemophilia Management, LLC
                                   ASD Specialty Healthcare, Inc.
                                   BBC Laboratories
                                   BBC Operating Sub, Inc.
                                   BBC Packing Corporation
                                   BBC Special Packaging, Inc.
                                   BBC Transportation Company
                                   Bergen Brunswig Corporation
                                   Bergen Brunswig Drug Company
                                   Bergen Brunswig Realty Services, Inc.
                                   Beverly Acquisition Corporation
                                   Brownstone Pharmacy, Inc.
                                   Capstone Med, Inc.
                                   Capstone Pharmacy of Delaware, Inc.
                                   C.D. Smith Healthcare, Inc.
                                   Century Advertising, Inc.
                                   Choice Medical, Inc.
                                   Compuscript, Inc.
                                   Computran Systems, Inc.
                                   Corrections Pharmacies Licensing
                                          Company, L.L.C.
                                   Corrections Pharmacies, L.L.C.
                                   DD Wholesale, Inc.
                                   Drug Service, Inc.
                                   Dunnington Drug, Inc.
                                   Dunnington Rx Services of Massachusetts, Inc.
                                   Dunnington Rx Services of Rhode Island, Inc.
                                   Durr-Fillauer Medical, Inc.
                                   Express Pharmacy Services, Inc.
                                   Family Center Pharmacy, Inc.
                                   Goot Nursing Home Pharmacy, Inc.
                                   Goot's Goodies, Inc.
                                   Goot's Pharmacy & Orthopedic Supply, Inc.

                                        4

<PAGE>

                                   Goot Westbridge Pharmacy, Inc.
                                   Green Barn, Inc.
                                   Healthcare Prescription Services, Inc.
                                   Health Services Capital Corporation
                                   Home Medical Equipment Health Company
                                   Insta-Care Holdings, Inc.
                                   Insta-Care Pharmacy Services Corporation
                                   Integrated Commercialization Solutions, Inc.
                                   Inteplex, Inc.
                                   James Brudnick Company, Inc.
                                   K/S Instrument Corp.
                                   LAD Drug Corporation
                                   Los Angeles Drug Corporation
                                   MDP Properties, Inc.
                                   Medical Health Industries, Inc.
                                   Medidyne Corp.
                                   Omni Med B, Inc.
                                   Pharmacy Corporation of America, Inc.
                                   Pharmacy Corporation of America-
                                         Massachusetts, Inc.
                                   Pharmacy Dynamics Group, Inc.
                                   PharMerica Drug Systems, Inc.
                                   PharMerica, Inc.
                                   Premier Pharmacy, Inc.
                                   RightPak, Inc.
                                   Rombro's Drug Center, Inc.
                                   Southwestern Drug Corporation
                                   Southwest Pharmacies, Inc.
                                   Stadt Solutions, LLC
                                   The Allen Company
                                   The Lash Group, Inc.
                                   Tmesys(TM), Inc.
                                   Value Apothecaries, Inc.

                                   By:    /s/ William D. Sprague
                                          -----------------------------------
                                          Name:  William D. Sprague
                                          Title: Vice President and Secretary

                                       5

<PAGE>

                              ASD HEMOPHILIA PROGRAM, L.P.
                              By:  ASD Hemophilia Management, LLC,
                                   General Partner

                              By:  /s/ William D. Sprague
                                   -----------------------------------
                                   Name:  William D. Sprague
                                   Title: Vice President and Secretary

                              CORRECTIONS PHARMACIES OF
                              CALIFORNIA, LP
                              By:  Corrections Pharmacies, L.L.C.,
                                   General Partner

                              By:  /s/ William D. Sprague
                                   -----------------------------------
                                   Name:  William D. Sprague
                                   Title: Vice President and Secretary

                              CORRECTIONS PHARMACIES OF HAWAII, LP
                              By:  Corrections Pharmacies, L.L.C.,
                                   General Partner

                              By:  /s/ William D. Sprague
                                   -----------------------------------
                                   Name:  William D. Sprague
                                   Title: Vice President and Secretary

                              PHARMACY HEALTHCARE SOLUTIONS,
                              LTD.
                              By:  Value Apothecaries, Inc., General Partner

                              By:  /s/ William D. Sprague
                                   -----------------------------------
                                   Name:  William D. Sprague
                                   Title: Vice President and Secretary

                              AMERISOURCE HERITAGE CORPORATION

                              By: /s/ Diana Kammerer
                                  ------------------------------------
                                   Name:  Diana Kammerer
                                   Title: Secretary

                                        6

<PAGE>

                                   The Company:
                                   -----------

                                   AMERISOURCE HEALTH CORPORATION

                                   By:  /s/ William D. Sprague
                                        ------------------------------------
                                        Name:  William D. Sprague
                                        Title: Vice President, General Counsel
                                               and Secretary

                                   The Subsidiary Guarantor:
                                   ------------------------

                                   AMERISOURCE CORPORATION,

                                   By:  /s/ William D. Sprague
                                        ------------------------------------
                                        Name:  William D. Sprague
                                        Title: Vice President, General Counsel
                                               and Secretary

                                   The Parent:
                                   ----------

                                   AMERISOURCEBERGEN CORPORATION

                                   By:  /s/ William D. Sprague
                                        ------------------------------------
                                        Name:  William D. Sprague
                                        Title: Vice President, General Counsel
                                               and Secretary

                                   The Trustee:
                                   -----------

                                   BANK ONE TRUST COMPANY, N.A

                                   By:  /s/ Melissa Wilman
                                        ------------------------------------
                                        Name:  Melissa Wilman
                                        Title: Authorized Officer

                                        7

<PAGE>

                                                                      Schedule I

Alliance Health Services
Alliance Home Health Care, Inc.
AmeriSource Health Services Corporation
AmeriSource Heritage Corporation
AmeriSource Sales Corporation
ASD Hemophilia Management, LLC
ASD Hemophilia Program, L.P.
ASD Specialty Healthcare, Inc.
BBC Laboratories
BBC Operating Sub, Inc.
BBC Packing Corporation
BBC Special Packaging, Inc.
BBC Transportation Company
Bergen Brunswig Corporation
Bergen Brunswig Drug Company
Bergen Brunswig Realty Services, Inc.
Beverly Acquisition Corporation
Brownstone Pharmacy, Inc.
Capstone Med, Inc.
Capstone Pharmacy of Delaware, Inc.
C.D. Smith Healthcare, Inc.
Century Advertising, Inc.
Choice Medical, Inc.
Compuscript, Inc.
Computran Systems, Inc.
Corrections Pharmacies Licensing Company, L.L.C.
Corrections Pharmacies, L.L.C.
Corrections Pharmacies of California, LP
Corrections Pharmacies of Hawaii, LP
DD Wholesale, Inc.
Drug Service, Inc.
Dunnington Drug, Inc.
Dunnington Rx Services of Massachusetts, Inc.
Dunnington Rx Services of Rhode Island, Inc.
Durr-Fillauer Medical, Inc.
Express Pharmacy Services, Inc.
Family Center Pharmacy, Inc.
Goot Nursing Home Pharmacy, Inc.
Goot's Goodies, Inc.
Goot's Pharmacy & Orthopedic Supply, Inc.
Goot Westbridge Pharmacy, Inc.
Green Barn, Inc.

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<PAGE>

Healthcare Prescription Services, Inc.
Health Services Capital Corporation
Home Medical Equipment Health Company
Insta-Care Holdings, Inc.
Insta-Care Pharmacy Services Corporation
Integrated Commercialization Solutions, Inc.
Inteplex, Inc.
James Brudnick Company, Inc.
K/S Instrument Corp.
LAD Drug Corporation
Los Angeles Drug Corporation
MDP Properties, Inc.
Medical Health Industries, Inc.
Medidyne Corp.
Omni Med B, Inc.
Pharmacy Corporation of America, Inc.
Pharmacy Corporation of America-Massachusetts, Inc.
Pharmacy Dynamics Group, Inc.
Pharmacy Healthcare Solutions, Ltd.
PharMerica Drug Systems, Inc.
PharMerica, Inc.
Premier Pharmacy, Inc.
RightPak, Inc.
Rombro's Drug Center, Inc.
Southwestern Drug Corporation
Southwest Pharmacies, Inc.
Stadt Solutions, LLC
The Allen Company
The Lash Group, Inc.
Tmesys(TM), Inc.
Value Apothecaries, Inc.

                                        9

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