Idenix Letterhead]Idenix Pharmaceuticals Inc • September 8th, 2006 • Pharmaceutical preparations • Hampshire
Company FiledSeptember 8th, 2006 Industry JurisdictionThis letter memorializes our agreement that, immediately prior to the election of John Weidenbruch to the office of Executive Vice President, General Counsel and Secretary, your resignation from such offices will become effective. At such time you will no longer serve as an executive officer of Idenix but will continue to be employed by Idenix as a senior advisor