Filed by AmeriSource Health Corporation pursuant
                              to Rule 425 under the Securities Act of 1933 and
                              deemed filed pursuant to Rule 14a-12 of the
                              Securities Exchange Act of 1934

                              Subject Company: AmerisourceBergen Corporation
                              Commission File Number: 333-61440


Forward-Looking Statements
--------------------------

The following communications contain certain "forward-looking statements" within
the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the
Securities Exchange Act of 1934. These statements are based on management's
current expectations and are subject to uncertainty and changes in
circumstances. Actual results may vary materially from the expectations
contained in the forward-looking statements. The forward-looking statements
herein include statements addressing future financial and operating results of
AmeriSource and Bergen Brunswig and the timing, benefits and other aspects of
the proposed merger.

The following factors, among others, could cause actual results to differ
materially from those described in the forward-looking statements: inability to
obtain, or meet conditions imposed for, governmental approvals for the
transaction; failure of the stockholders of AmeriSource and Bergen Brunswig to
approve the merger; the risk that the businesses of AmeriSource and Bergen
Brunswig will not be integrated successfully; failure to obtain and retain
expected synergies; and other economic, business, competitive and/or regulatory
factors affecting the businesses of AmeriSource and Bergen Brunswig generally.
More detailed information about these factors is set forth in AmeriSource's and
Bergen Brunswig's filings with the Securities and Exchange Commission, including
each of their Annual Reports on Form 10-K for fiscal 2000 and their most recent
quarterly reports on Form 10-Q. AmeriSource and Bergen Brunswig are under no
obligation to (and expressly disclaim any such obligation to) update or alter
their forward-looking statements whether as a result of new information, future
events or otherwise.

Additional Information
----------------------

In connection with their proposed merger, AmerisourceBergen, together with
AmeriSource and Bergen Brunswig, filed a preliminary joint proxy
statement/prospectus with the Securities and Exchange Commission. INVESTORS AND
SECURITY HOLDERS ARE ADVISED TO READ THE DEFINITIVE JOINT PROXY
STATEMENT/PROSPECTUS WHEN IT BECOMES AVAILABLE, BECAUSE IT WILL CONTAIN
IMPORTANT INFORMATION. Investors and security holders may obtain a free copy of
the definitive joint proxy statement/prospectus (when available) and other
documents filed by AmerisourceBergen (as well as by AmeriSource and Bergen
Brunswig) at the SEC's web site at www.sec.gov. The definitive joint proxy
statement/prospectus and such other documents may also be obtained for free from
AmeriSource or from Bergen Brunswig by directing such request to AmeriSource
Health Corporation, General Counsel, 1300 Morris Drive, Suite 100, Chesterbrook,
Pennsylvania 19087-5594, telephone: (610) 727-7000; or to Bergen Brunswig
Corporation, Attention: Corporate Secretary, 4000 Metropolitan Drive, Orange,
California 92868-3510, Telephone: (714)385-4000.



Participants in Solicitation
----------------------------

AmeriSource and Bergen Brunswig and their respective directors, executive
officers and other members of their management and employees may be deemed to be
participants in the solicitation of proxies from their respective stockholders
in connection with the proposed merger. Information concerning AmeriSource's
participants in the solicitation is set forth in AmeriSource's Current Report on
Form 8-K filed with the Securities and Exchange Commission on March 19, 2001,
and information concerning Bergen Brunswig's participants in the solicitation is
set forth in Bergen Brunswig's Current Report on Form 8-K filed with the
Securities and Exchange Commission on March 19, 2001.



                         ASSOCIATE QUESTIONS AND ANSWERS
                             JULY 31, 2001 - UPDATE



1.   Excerpted from Mike Kilpatrick's Update: "We have started Phase 2 of the
     integration, where the new, fact-based, Phase 1 information will be applied
     in building our new company. In this phase, integration projects will be
     established, Day-One activities readied, and planning for Phase 3
     implementation completed." Question: Is Phase 2 where the decisions about
     who will be laid off occur?

     Phase 2 activities will focus on preparing the companies to integrate into
     AmeriSourceBergen. The timing of decisions regarding the future of specific
     positions will depend on the function or location involved. Some areas will
     be integrated faster than others. At this point it premature to guess on
     the timetable of decisions. An associate whose position is eliminated will
     receive a minimum of two months notice.

2.   In the past 6 months we have been on the same curve as Bergen. With Bergen
     increasing value of more than 40% in stock price while AmeriSource has only
     increased more than 20%. Right now it seems that we are generating more
     value to Bergen stock compared to when we first heard about the merger.
     What do we expect or foresee the company merger doing to the value of
     AmeriSource stock and Bergen Stock?

     It is the Company's position that it is inappropriate for management to
     speculate on the stock price. You are encouraged to speak to a financial
     advisor regarding investment advice.

3.   Will salaried employees who are eligible to receive a 'potential'
     performance bonus for FY 2001 receive that bonus if they are
     released/severed prior to September 30, 2001? Or, what if they complete FY
     2001, but are released/severed prior to the bonus being actually paid?
     (Last year it was paid in December) Would that be added to their severance
     pay?

     Any compensation that has been earned but unpaid, including bonus, will be
     payable to an associate who is terminated without cause due to the merger.
     At this time, no layoffs associated with the merger are expected to occur
     before the end of this fiscal year. The timing of bonus payments has not
     yet been decided.

4.   Will the merchandiser program still be in effect with the new merger? I
     understand that Bergen doesn't use merchandisers.

     No decisions have been made regarding the position of merchandiser in the
     new company. Bergen has a few associates that are categorized as
     merchandisers but they have moved many of those functions to the Retail
     Account Specialist position.

5.   With Phase I of the integration process completed, will there be a release
     of the findings to the associates? When will Phase II begin?


     A summary of Phase I activities has been forwarded to the leadership groups
     of AmeriSource and Bergen Brunswig from Terry Haas, Sr. Vice President
     Strategic Integration. AmeriSource management is in the process of sharing
     the information with all associates. As you may know, Phase I activities
     focused on gathering data about each company's business processes and as a
     result, there is a clearer understanding of each company, an outline of
     Day-One activities, and a better understanding of potential synergy
     opportunities. Phase II has begun and is focused on taking the information
     gathered in Phase I and using the information to build the new Company. In
     addition, integration projects and migration plans will be established.
     Additional information on the activities in Phase II will be provided in
     future updates from Terry Haas as well as the integration updates from Dave
     Yost.

6.   In the AmeriSource quarterly earnings call it was stated that holding a
     shareowners meeting does not have to wait for FTC approval to occur. What
     is the timeline for the shareowners meeting? Will the shareowners meeting
     for both companies be held in August?

     The shareowners meetings have not yet been scheduled; however, it is
     anticipated that they will take place before the end of August. The notice
     of the shareowners meetings will be provided to all shareowners prior to
     the meeting.


Additional Information About The Merger
---------------------------------------

In connection with their proposed merger, AmeriSource-Bergen, together with
AmeriSource and Bergen Brunswig, filed a preliminary joint proxy
statement/prospectus with the Securities and Exchange Commission. INVESTORS AND
SECURITY HOLDERS ARE ADVISED TO READ THE DEFINITIVE JOINT PROXY
STATEMENT/PROSPECTUS WHEN IT BECOMES AVAILABLE, BECAUSE IT WILL CONTAIN
IMPORTANT INFORMATION. Investors and security holders may obtain a free copy of
the definitive joint proxy statement/prospectus (when available) and other
documents filed by AmeriSource-Bergen (as well as by AmeriSource and Bergen
Brunswig) at the SEC's web site at www.sec.gov. The definitive joint proxy
statement/prospectus and such other documents may also be obtained for free from
AmeriSource or from Bergen Brunswig by directing such request to AmeriSource
Health Corporation, General Counsel, 1300 Morris Drive, Suite 100, Chesterbrook,
Pennsylvania 19087-5594, telephone: (610) 727-7000; or to Bergen Brunswig
Corporation, Attention: Corporate Secretary, 4000 Metropolitan Drive, Orange,
California 92868-3510, Telephone: (714)385-4000. AmeriSource and Bergen Brunswig
and their respective directors, executive officers and other members of their
management and employees may be deemed to be participants in the solicitation of
proxies from their respective stockholders in connection with the proposed
merger. Information concerning AmeriSource's participants in the solicitation is
set forth in AmeriSource's Current Report on Form 8-K filed with the Securities
and Exchange Commission on March 19, 2001, and information concerning Bergen
Brunswig's participants in the solicitation is set forth in Bergen Brunswig's
Current Report on Form 8-K filed with the Securities and Exchange Commission on
March 19, 2001.