2009-11-11 16:07:08 -

Alexion Pharmaceuticals, Inc. (Nasdaq: ALXN) today announced that Dr.

Leonard Bell, Chief Executive Officer of Alexion Pharmaceuticals, will present at Lazard Capital Markets 6 th Annual Healthcare Conference in New York City at 10:00 a.m. ET on Wednesday, November 18, 2009.

An audio webcast of Dr. Bell’s remarks will be available live. You can access the webcast at: www.alexionpharm.com : cts.businesswire.com/ct/CT?id=smartlink&url=http%3A%2F%2Fwww .. .

An archived version of the remarks will also be available through the Company’s web site for a limited time following the conference.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, 203-271-8210Sr.
Director, Corporate CommunicationsorMedia:Makovsky

+ CompanyMark Marmur, 212-508-9670orInvestors:Rx
CommunicationsRhonda Chiger, 917-322-2569