EXHIBIT 6 PRICEWATERHOUSECOOPERS LOGO - -------------------------------------------------------------------------------- PRICEWATERHOUSECOOPERS LLP CHARTERED ACCOUNTANTS 900 Rene-Levesque Blvd East Suite 500 Quebec Quebec Canada G1R 2B5 Telephone +1 (418) 522 7001 Facsimile +1 (418) 522 5663 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in this Annual Report on Form 40-F of AEterna Laboratories Inc. for the year ended December 31, 2003 of our report dated February 25, 2004, except as to note 25 which is as of March 3, 2004 relating to the consolidated financial statements for the three-years ended December 31, 2003. [Signature of PricewaterhouseCoopers LLP] CHARTERED ACCOUNTANTS Quebec, Quebec, Canada February 25, 2004 PricewaterhouseCoopers refers to the Canadian firm of PricewaterhouseCoopers LLP and the other member firms of PricewaterhouseCoopers International Limited, each of which is a separate and independent legal entity.