AEterna Zentaris to Present at Upcoming Dundee Capital Markets Emerging Growth Conference in Toronto

Québec City, Canada, November 11, 2010 – Aeterna Zentaris Inc. (NASDAQ: AEZS, TSX: AEZ) today announced that its Senior Vice President and Chief Financial Officer, Dennis Turpin, CA, will make a corporate presentation on Wednesday, November 17, 2010, from 9:55 a.m. to 10:15 a.m. (eastern time), at the Dundee Capital Markets Emerging Growth Conference, to be held at the St. Andrew’s Club in Toronto, Canada.

About Aeterna Zentaris Inc.

Aeterna Zentaris is a late-stage oncology drug development company currently investigating potential treatments for various cancers including colorectal, ovarian, endometrial cancer and multiple myeloma. The Company’s innovative approach of “personalized medicine” means tailoring treatments to a patient’s specific condition and to unmet medical needs. Aeterna Zentaris’ deep pipeline is drawn from its proprietary discovery unit providing the Company with constant and long-term access to state-of-the-art therapeutic options. For more information please visit www.aezsinc.com.

Investor Relations Ginette Vallières Investor Relations Coordinator (418) 652-8525 ext. 265 gvallieres@aezsinc.com

Media Relations Paul Burroughs Director of Communications (418) 652-8525 ext. 406 pburroughs@aezsinc.com