Press Releases
May 9, 2008

Notice of Time Change for Alexion's Presentation at the Bank of America 2008 Health Care Conference

CHESHIRE, Conn., May 9, 2008 /PRNewswire-FirstCall via COMTEX News Network/ -- Alexion Pharmaceuticals, Inc. (Nasdaq: ALXN) today announced that the time of Alexion's presentation at the Bank of America 2008 Health Care Conference in Las Vegas has been changed to 4:00 p.m., local time (7:00 p.m., eastern) on Tuesday, May 13, 2008. Vikas Sinha, Senior Vice President and Chief Financial Officer, is scheduled to present.

An audio webcast of Mr. Sinha's remarks will be available live. You can access the webcast at: www.alexionpharm.com. An archived version of the remarks will also be available through the Company's web site for a limited time following the conference.

[ALXN-G]

SOURCE Alexion Pharmaceuticals, Inc.

http://www.alexionpharm.com

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