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: AmeriSource Health Corporation
                              Commission File Number: 0-20485



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, AmeriSource and Bergen Brunswig will
file a joint proxy statement/prospectus with the Securities and Exchange
Commission. INVESTORS AND SECURITY HOLDERS ARE ADVISED TO READ THE 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 joint proxy statement/prospectus (when available) and other documents filed
by AmeriSource and Bergen Brunswig at the SEC's web site at www.sec.gov. The
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.



[AmeriSource Logo]                                        [Bergen Brunswig Logo]


Contact: Michael N. Kilpatric                     Donna Dolan
         610/727-7118                             714/385-4226
         mkilpatric@amerisource.com               donna.dolan@bergenbrunswig.com



          AMERISOURCE AND BERGEN BRUNSWIG FILE HART-SCOTT-RODINO NOTICE


VALLEY FORGE, PA, and ORANGE, CA, April 6, 2001 - AmeriSource Health Corporation
(NYSE:AAS) and Bergen Brunswig Corporation (NYSE:BBC) today announced that each
of them has filed a Premerger Notification and Report Form pursuant to the Hart-
Scott-Rodino Antitrust Improvements Act of 1976, as amended, with the Federal
Trade Commission and the Antitrust Division of the Department of Justice in
connection with their proposed business combination. The Hart-Scott-Rodino
waiting period for this filing expires May 7, 2001, unless it is terminated
prior to such date or extended by a request for additional information and
documentary material by either of such agencies. Termination or expiration of
the waiting period is a condition to consummation of the business combination.

On March 19, 2001, AmeriSource and Bergen Brunswig announced that they had
entered into a merger agreement to create a new company named AmeriSource-Bergen
Corporation. Under the terms of the agreement, each share of Bergen Brunswig
common stock will be converted into 0.37 shares of AmeriSource-Bergen common
stock and each share of AmeriSource will be converted into one share of
AmeriSource-Bergen common stock.

About AmeriSource

AmeriSource Health Corporation, with more than $13 billion in annualized
operating revenue, is a leading distributor of pharmaceutical and related
healthcare products and services, and the industry's largest provider of
pharmaceuticals to acute care/health systems customers. Headquartered in Valley
Forge, PA, the Company serves its base of about 15,000 customer


accounts through a national network of 22 strategically located drug
distribution facilities. For news and additional information about the company,
visit its web site at www.amerisource.com.

About Bergen Brunswig

Bergen Brunswig Corporation, headquartered in Orange County, California, is a
leading supplier of pharmaceuticals and specialty healthcare products as well as
information management solutions and consulting services. With $22 billion in
annualized operating revenues, Bergen's customers include the nation's
healthcare providers (hospitals, nursing homes, physicians), drug stores,
manufacturers and patients. Through its Drug Company's 30 distribution centers
and its other subsidiary companies, Bergen provides product distribution,
logistics, pharmacy management programs, and Internet fulfillment strategies
designed to reduce costs and improve patient outcomes across the entire
healthcare spectrum. Bergen Brunswig press releases are available on the
Company's website at www.bergenbrunswig.com.

Additional Information

In connection with their proposed merger, AmeriSource and Bergen Brunswig will
file a joint proxy statement/prospectus with the Securities and Exchange
Commission. INVESTORS AND SECURITY HOLDERS ARE ADVISED TO READ THE 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 joint proxy statement/prospectus (when available) and other documents filed
by AmeriSource and Bergen Brunswig at the Securities and Exchange Commission's
web site at www.sec.gov. The 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.

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