Idenix to Host Conference Call Discussing Fourth Quarter and Year-End 2006 Financial Results

CAMBRIDGE, Mass., Feb. 16  /PRNewswire-FirstCall/ -- Idenix Pharmaceuticals, Inc., (NASDAQ:IDIX) announced today that it will report its financial results for the fourth quarter and year-end 2006 on Friday, March 2, 2007 before the U.S. financial markets open.

In conjunction with the issuance of the press release, management will host a conference call at 8:00 a.m. EST on Friday, March 2, 2007 to discuss the company's financial results for the fourth quarter and year-end 2006, clinical programs, financial guidance and corporate objectives.

To access the call please dial [phone] U.S./Canada or [phone] International and enter passcode 9228831 or to listen to a live audio webcast of the call, go to "Calendar of Events" in the Idenix Investor Center at http://www.idenix.com/. A replay of the call will also be available from 12:00 p.m. EST on March 2, 2007 until 12:00 p.m. EDT on March 16, 2007. To access the replay, please dial [phone] U.S./Canada or [phone] International and enter passcode 9228831. An archived webcast will also be available for two weeks after the call on the Idenix website.

About Idenix

Idenix Pharmaceuticals, Inc., headquartered in Cambridge, Massachusetts, is a biopharmaceutical company engaged in the discovery, development and commercialization of drugs for the treatment of human viral and other infectious diseases. Idenix's current focus is on the treatment of infections caused by hepatitis B virus, hepatitis C virus and HIV. For further information about Idenix, please refer to http://www.idenix.com/.

  Idenix Pharmaceuticals' Contacts:
  Media: Teri Dahlman [phone]
  Investors: Amy Sullivan [phone]


DATASOURCE: Idenix Pharmaceuticals, Inc.



CONTACT:  Media, Teri Dahlman, [phone], or investors, Amy

Sullivan, [phone], both of Idenix Pharmaceuticals Inc.



Web site:  http://www.idenix.com/

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