AEterna Zentaris Announces 2005 Third Quarter Financial And Operating Results Conference Call And Webcast

QUEBEC CITY, Nov. 9 /PRNewswire-FirstCall/ - AEterna Zentaris Inc. announced that its quarterly conference call and webcast have been scheduled for Monday, November 14, 2005 at 10:30 a.m. Eastern time. The call will follow the press release of AEterna Zentaris’ 2005 third quarter financial results issued earlier on the same day. Participants may access the live webcast via the Company’s website at www.aeternazentaris.com in the “investors” section, or by telephone using the following numbers: 416-640-4127, 514-807-8791 or 1-800-814-4941.

A replay of the webcast will also be available on the website for a period of 30 days.

About AEterna Zentaris Inc.

AEterna Zentaris Inc. is a growing global biopharmaceutical company engaged in the discovery, development and marketing of therapies for cancer and endocrine disorders.

AEterna Zentaris also owns 50.03% of Atrium Biotechnologies Inc. , a developer, manufacturer and marketer of science-based products for the cosmetics, pharmaceutical, chemical and nutritional industries.

News releases and additional information are available at www.aeternazentaris.com.

AETERNA ZENTARIS INC. (FORMERLY/ANCIENNEMENT - LES LABORATOIRES AETERNA

CONTACT: Media Relations: Paul Burroughs, (418) 652-8525 ext. 406,paul.burroughs@aeternazentaris.com; Investor Relations: Ginette Vallieres,(418) 652-8525 ext. 265, ginette.vallieres@aeternazentaris.com; Europe:Matthias Seeber, +49 69 42602 3425, matthias.seeber@zentaris.com; Torequest a free copy of this organization’s annual report, please go tohttp://www.newswire.ca and click on reports@cnw.

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