AmerisourceBergen Announces Change in Date for Fiscal Third Quarter Earnings Release; Reaffirms FY 2009 EPS Guidance

VALLEY FORGE, Pa.--(Business Wire)--
AmerisourceBergen Corporation (NYSE:ABC) today announced that it now plans to
release its results for the Third Quarter of Fiscal Year 2009 on Thursday, July
30, 2009, prior to the opening of trading on the New York Stock Exchange, and to
hold a conference call to discuss the results at 11:00 a.m. Eastern Daylight
Time on that date. The date was moved one week so that Michael D. DiCandilo,
Executive Vice President and Chief Financial Officer, will be available for the
conference call. Mr. DiCandilo will shortly undergo minor surgery to repair a
herniated disk.

The Company reaffirmed its fiscal year 2009 expectations for diluted earnings
per share from continuing operations in the range of $1.59 to $1.65 in fiscal
year 2009, a 10 percent to 15 percent increase over the $1.44 in the previous
fiscal year. These expectations reflect the Company`s two-for-one stock split
which occurred in June 2009.

Participating in the July 30, 2009 earnings conference call will be:
R. David Yost, President & Chief Executive Officer
Michael D. DiCandilo, Executive Vice President & Chief Financial Officer

The dial-in number for the live call will be (651) 291-0900. No access code is
required.

The live call will also be webcast via the Company`s website at
www.amerisourcebergen.com. Users are encouraged to log on to the webcast
approximately 10 minutes in advance of the scheduled start time of the call.

Replays of the call will be made available via telephone and webcast. 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. The telephone replay will also be available approximately two hours after
the completion of the call and will remain available for seven 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 106662.

About AmerisourceBergen

AmerisourceBergen is one of the world's largest pharmaceutical services
companies serving the United States, Canada and selected global markets.
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 reimbursement and pharmaceutical consulting
services. With more than $70 billion in annual revenue, AmerisourceBergen is
headquartered in Valley Forge, PA, and employs approximately 10,000 people.
AmerisourceBergen is ranked #26 on the Fortune 500 list. For more information,
go to www.amerisourcebergen.com.

FORWARD-LOOKING STATEMENTS

This news release contains forward-looking statements about AmerisourceBergen`s
future business and financial performance, estimates and prospects. 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 following
factors, among others, could cause actual results to differ materially from
those described in any forward-looking statements: changes in pharmaceutical
market growth rates; the loss of one or more key customer or supplier
relationships; changes in customer mix; customer delinquencies, defaults or
insolvencies; supplier defaults or insolvencies; changes in pharmaceutical
manufacturers` pricing and distribution policies or practices; adverse
resolution of any contract or other dispute with customers or suppliers; federal
and state government enforcement initiatives to detect and prevent suspicious
orders of controlled substances and the diversion of controlled substances;
changes in U.S. legislation or regulatory action affecting pharmaceutical
product pricing or reimbursement policies, including under Medicaid and
Medicare; changes in regulatory or clinical medical guidelines and/or labeling
for the pharmaceuticals we distribute, including certain anemia products; price
inflation in branded pharmaceuticals and price deflation in generics;
significant breakdown or interruption of our information technology systems; our
inability to implement an enterprise resource planning (ERP) system to handle
business and financial processes within AmerisourceBergen Drug Corporation`s
operations and our corporate functions without operating problems and/or cost
overruns; success of integration, restructuring or systems initiatives; interest
rate and foreign currency exchange rate fluctuations; economic, business,
competitive and/or regulatory developments in Canada, the United Kingdom and
elsewhere outside of the United States; the impact of divestitures or the
acquisition of businesses that do not perform as we expect or that are difficult
for us to integrate or control; our inability to successfully complete any other
transaction that we may wish to pursue from time to time; changes in tax
legislation or adverse resolution of challenges to our tax positions; increased
costs of maintaining, or reductions in our ability to maintain adequate
liquidity and financing sources; continued volatility and further deterioration
of the capital and credit markets; and other economic, business, competitive,
legal, tax, regulatory and/or operational factors affecting our business
generally.Our most recent annual report on Form 10-K, quarterly reports on Forms
10-Q and current reports 8-K (which we may revise or supplement in future
reports filed to the SEC) provide additional information about these risks,
uncertainties and other matters. We do not undertake to update our
forward-looking statements.

AmerisourceBergen Corporation
Michael N. Kilpatric
610-727-7118
mkilpatric@amerisourcebergen.com

Copyright Business Wire 2009