Idenix to Host Conference Call Discussing Third Quarter and Nine Month 2012 Financial Results and HCV Program Update

Idenix to Host Conference Call Discussing Third Quarter and Nine Month 2012
Financial Results and HCV Program Update

CAMBRIDGE, Mass., Oct. 25, 2012 (GLOBE NEWSWIRE) -- Idenix Pharmaceuticals,
Inc., (Nasdaq:IDIX) announced today that it will report its financial results
for the third quarter of 2012 on Thursday, November 1, 2012 after the U.S.
financial markets close.

Idenix management will host a conference call at 4:30 p.m. ET on Thursday,
November 1, 2012 to discuss the company's financial results for the third
quarter of 2012 and provide an update on the company's development programs.

To access the call please dial (877) 640-9809 U.S./Canada or (914) 495-8528
International and enter passcode 58517577 or to listen to a live webcast go to
"Events & Presentations" in the Idenix Investor Center at www.idenix.com. A
replay of the call will also be available from November 1, 2012, at 7:30 p.m.
ET until November 8, 2012, at 11:59 p.m. ET. To access the replay, please dial
(855) 859-2056 U.S./Canada or (404) 537-3406 International and enter passcode
58517577. 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 and development of drugs
for the treatment of human viral diseases. Idenix's current focus is on the
treatment of patients with hepatitis C infection. For further information
about Idenix, please refer to http://www.idenix.com.

CONTACT: Idenix Pharmaceuticals Contacts:
         Kelly Barry (617) 995-9033  (media)
         Teri Dahlman (617) 995-9807 (investors)