Press Releases
November 25, 2008

Alexion to Present at the 20th Annual Piper Jaffray Health Care Conference

CHESHIRE, Conn., Nov 25, 2008 /PRNewswire-FirstCall via COMTEX News Network/ --

Alexion Pharmaceuticals, Inc. (Nasdaq: ALXN) today announced that Dr. Leonard Bell, Chief Executive Officer of Alexion Pharmaceuticals, will present at the 20th Annual Piper Jaffray Health Care Conference in New York City at 10:00 a.m. ET on Tuesday, December 2, 2008.

An audio webcast of Dr. Bell'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 An archived version of the remarks will also be available through the Company's web site for a limited time following the conference.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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