Cosciens Biopharma Inc.TSX: CSCI

Aeterna Zentaris to Present at Upcoming BioFinance 2011 Conference in Toronto

· Issued by Cosciens Biopharma Inc.

May 25, 2011 (Canada NewsWire Group) --

QUÉBEC CITY, May 25, 2011 /CNW Telbec/ - Aeterna Zentaris Inc. (NASDAQ: AEZS) (TSX: AEZ) (the "Company") today announced that its Senior Vice President and CFO, Dennis Turpin, CA, will make a corporate presentation at the upcoming BioFinance 2011 Conference on Wednesday, June 1, 2011, at 10:00 a.m. (Eastern time) in Room 1 of the St. Andrew's Club & Conference Centre 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, multiple myeloma, endometrial, ovarian, prostate and bladder cancer. 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

Erika Moran
The Investor Relations Group
(212) 825-3210
emoran@investorrelationsgroup.com

Media Relations

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