McKesson Corporation Fiscal 2011 Fourth Quarter Conference Call Scheduled For May 3, 2011

April 21, 2011

SAN FRANCISCO--(BUSINESS WIRE)--McKesson Corporation (NYSE:MCK) will release financial results for its fourth fiscal quarter ended March 31, 2011 on Tuesday, May 3, 2011, following the market close at approximately 4:00 PM Eastern Time (1:00 PM Pacific Time). The company has scheduled a conference call for 5:00 PM Eastern Time (2:00 PM Pacific Time), during which John Hammergren, chairman and chief executive officer, and Jeff Campbell, executive vice president and chief financial officer, will review these results.

The dial-in number for individuals wishing to participate on the call is 719-234-7317. Ana Schrank, vice president, Investor Relations, is the leader of the call, and the password to join the call is ‘McKesson’. The conference call will also be broadcast live and can be accessed by all interested parties at www.mckesson.com/earningscall. A replay of the call will be available on their website, www.mckesson.com/earningscall.

McKesson Corporation, currently ranked 14th on the FORTUNE 500, is a healthcare services and information technology company dedicated to helping its customers deliver high-quality healthcare by reducing costs, streamlining processes, and improving the quality and safety of patient care. Over the course of its 178-year history, McKesson has grown by providing pharmaceutical and medical-surgical supply management across the spectrum of care; healthcare information technology for hospitals, physicians, homecare and payers; hospital and retail pharmacy automation; and services for manufacturers and payers designed to improve outcomes for patients. For more information, visit http://www.mckesson.com.

Contact:

McKesson Corporation
Ana Schrank, 415-983-7153 (Investors and Financial Media)
Ana.Schrank@McKesson.com