AmerisourceBergen Announces Date and Time for Earnings Release

October 10, 2005

VALLEY FORGE, Pa.--(BUSINESS WIRE)--Oct. 10, 2005--AmerisourceBergen Corporation (NYSE:ABC) today announced that it plans to release its Fourth Quarter and Year End results for Fiscal Year 2005 on Thursday, November 3, 2005 prior to the opening of trading on the New York Stock Exchange. The Company will host a conference call to discuss the results at 11:00 am Eastern Standard Time on November 3, 2005.

Participating in the conference call will be:

    R. David Yost, Chief Executive Officer
    Kurt J. Hilzinger, President & Chief Operating Officer
    Michael D. DiCandilo, Executive Vice President & Chief Financial
    Officer

The dial-in number for the live call will be (612) 326-1011. No access code is required.

In order to ensure the widest distribution possible, the Company will be broadcasting the conference call over the Internet. The call will be accessible through the Investors page of AmerisourceBergen's web site, www.amerisourcebergen.com. Users are encouraged to log on to the webcast approximately 15 minutes in advance of the scheduled start time of the call.

Following the live call, replays will be made available on the Internet and via telephone. A replay of the webcast will be posted on www.amerisourcebergen.com approximately two hours after the completion of the call and will remain available for thirty days. To access the telephone replay from within the US, dial 800-475-6701. From outside the US, dial 320-365-3844. The access code is 799257. The telephone replay will be available from 2:30 p.m. EST on November 3, 2005 to 11:59 p.m. on November 10, 2005.

About AmerisourceBergen

AmerisourceBergen (NYSE:ABC) is one of the largest pharmaceutical services companies in the United States. Servicing both pharmaceutical manufacturers and healthcare providers in the pharmaceutical supply channel, the Company provides drug distribution and related services designed to reduce costs and improve patient outcomes. AmerisourceBergen's service solutions range from pharmacy automation and pharmaceutical packaging to pharmacy services for skilled nursing and assisted living facilities, reimbursement and pharmaceutical consulting services, and physician education. With more than $54 billion in annual revenue, AmerisourceBergen is headquartered in Valley Forge, PA, and employs more than 14,000 people. AmerisourceBergen is ranked #23 on the Fortune 500 list. For more information, go to www.amerisourcebergen.com.

FORWARD-LOOKING STATEMENTS

This news release may 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. Forward-looking statements may include statements addressing AmerisourceBergen's future financial and operating results and the benefits, efficiencies and savings to be derived from the Company's integration plans to consolidate its distribution network.

The following factors, among others, could cause actual results to differ materially from those described in any forward-looking statements: competitive pressures; the loss of one or more key customer or supplier relationships; customer defaults or insolvencies; changes in customer mix; supplier defaults or insolvencies; changes in pharmaceutical manufacturers' pricing and distribution policies or practices; adverse resolution of any contract or other disputes with customers (including departments and agencies of the U.S. Government) or suppliers; regulatory changes; changes in U.S. government policies (including reimbursement changes arising from the Medicare Modernization Act); market interest rates; operational or control issues arising from AmerisourceBergen's outsourcing of information technology activities; success of the Pharmaceutical Distribution segment's ability to transition its business model to fee-for-service; success of integration, restructuring or systems initiatives; fluctuations in the U.S. dollar - Canadian dollar exchange rate; economic, business, competitive and/or regulatory developments in Canada; acquisition of businesses that do not perform as we expect or that are difficult for us to integrate or control; and other economic, business, competitive, legal, regulatory and/or operational factors affecting the business of AmerisourceBergen generally.

More detailed information about these and other risk factors is set forth in AmerisourceBergen's filings with the Securities and Exchange Commission, including its Annual Report on Form 10-K for fiscal 2004.

AmerisourceBergen is under no obligation to (and expressly disclaims any such obligation to) update or alter any forward looking statements whether as a result of new information, future events or otherwise.

    CONTACT: AmerisourceBergen Corporation, Valley Forge
             Michael N. Kilpatric, 610-727-7118
             mkilpatric@amerisourcebergen.com
                 or
             Barbara Brungess, 610-727-7199
             bbrungess@amerisourcebergen.com

    SOURCE: AmerisourceBergen Corporation