Press Releases
November 3, 2006

Alexion to Present At Cowen and Company 7th Annual Global Health Care Conference

Alexion to Present At Cowen and Company 7th Annual Global Health Care Conference

Cheshire, CT, November 3, 2006 -- Alexion Pharmaceuticals, Inc. (Nasdaq: ALXN) today announced that Dr. Leonard Bell, Chief Executive Officer of Alexion Pharmaceuticals, will present at the Cowen and Company 7th Annual Global Health Care Conference in London, England at 10:00 a.m. local time (5:00 a.m. eastern time) on Tuesday, November 7, 2006.

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 An archived version of the remarks will also be available through the Company's web site for a limited time following the conference