Press Releases
January 4, 2011

Alexion to Present at the 29th Annual JP Morgan Healthcare Conference

CHESHIRE, Conn.--(BUSINESS WIRE)-- Alexion Pharmaceuticals, Inc. (Nasdaq: ALXN) today announced that Dr. Leonard Bell, Chief Executive Officer of Alexion Pharmaceuticals, will present at the 29th Annual JP Morgan Healthcare Conference in San Francisco at 10:00 a.m. local time (1:00 p.m. Eastern) on Wednesday, January 12, 2011.

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 An archived version of the remarks will also be available through the Company's web site for a limited time following the conference.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

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

Source: Alexion Pharmaceuticals, Inc.

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