Press Releases
March 11, 2009

Alexion to Present at the Cowen and Company 29th Annual Health Care Conference

CHESHIRE, Conn., Mar 11, 2009 (BUSINESS WIRE) -- Alexion Pharmaceuticals, Inc. (Nasdaq: ALXN) today announced that Dr. Leonard Bell, Chief Executive Officer of Alexion Pharmaceuticals, will present at the Cowen and Company 29th Annual Health Care Conference in Boston at 10:15 a.m. Eastern on Wednesday, March 18, 2009.

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 An archived version of the remarks will also be available through the Company's web site for a limited time following the conference.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

Alexion Pharmaceuticals, Inc.
Irving Adler, 203-271-8210
Sr. Director, Corporate
Communications
or
Media:
Makovsky + Company
Mark Marmur, 212-508-9670
or
Investors:
Rx Communications
Rhonda Chiger, 917-322-2569

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