Labopharm 20-F 2010 FY Annual report (foreign)

Exhibit 13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Labopharm Inc. (the “Corporation”) on Form 20-F for the fiscal year ended December 31, 2010 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Mark A. D’Souza, President and Chief Executive Officer of the Corporation, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Corporation.

Dated: March 31, 2011

By:	/s/ Mark A. D’Souza
Name:	Mark A. D’Souza
Title:	President and Chief Executive Officer

This certification accompanies the annual report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the issuer for purposes of Section 18 of the Securities Exchange Act of 1934.