AEterna Zentaris To Webcast Analyst Meeting In Toronto On November 29, 2006

QUEBEC CITY, Nov. 27 /PRNewswire-FirstCall/ - AEterna Zentaris Inc. today announced it will webcast the presentations from its Analyst Day to be held in Toronto on Wednesday, November 29, 2006 starting at 9:00 a.m. ET. Company management and opinion leaders will present and discuss the development of its lead compounds cetrorelix, ozarelix and perifosine, as well as other promising product candidates.

A live audio webcast of this presentation will be available on AEterna Zentaris’ website at www.aeternazentaris.com in the Investors section. A replay will also be available for a period of 30 days.

About AEterna Zentaris Inc.

AEterna Zentaris Inc. is a growing global biopharmaceutical company focused on endocrine therapy and oncology, with proven expertise in drug discovery, development and commercialization. News releases and additional information are available at www.aeternazentaris.com.

AETERNA ZENTARIS INC.

CONTACT: Media Relations: Paul Burroughs, (418) 652-8525 ext. 406,paul.burroughs@aeternazentaris.com; Investor Relations: Jenene Thomas,(418) 655-6420, (908) 996-3154, jenene.thomas@aeternazentaris.com