Alexion Pharmaceuticals To Report Fourth Quarter and Full Year 2008 Results on February...

Alexion Pharmaceuticals To Report Fourth Quarter and Full Year 2008 Results on
February 12, 2009

CHESHIRE, Conn., Jan. 12 /PRNewswire-FirstCall/ -- Alexion Pharmaceuticals,
Inc. (Nasdaq: ALXN), today announced that the Company will report its
financial results for the fourth quarter and full year ended December 31, 2008
on Thursday, February 12, 2009 before the financial markets open. Following
the release of the financials, Alexion management will conduct a conference
call and audio web cast on Thursday, February 12, 2009, at 10:00 a.m. Eastern
Time (ET).

To participate in this conference call, dial 719-325-4745, confirmation code
8549129 shortly before 10:00 a.m. ET. A replay of the call will be available
from 1:00 p.m. ET through a limited time thereafter. The replay number is
719-457-0820, confirmation code 8549129. The audio web cast can be accessed
at: www.alexionpharm.com.

[ALXN-G]

SOURCE Alexion Pharmaceuticals, Inc.

Irving Adler, Sr. Director, Corporate Communications of Alexion
Pharmaceuticals, Inc., +1-203-271-8210; or Media, Mark Marmur of Makovksy +
Company, +1-212-508-9670; or Investors, Rhonda Chiger of Rx Communications,
+1-917-322-2569