Exhibit 32.1

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 filing of the Quarterly Report on Form 10-Q for the quarter ended March 31, 2004 (the “Report”) by Valeant Pharmaceuticals International (“Registrant”), each of the undersigned hereby certifies that:

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

     2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Registrant as of and for the periods presented in the Report.

Date: May 10, 2004	/s/ Robert W. O’Leary
	Robert W. O’Leary
		Chairman of the Board and Chief Executive Officer

Date: May 10, 2004	/s/ Bary G. Bailey
	Bary G. Bailey
		Chief Financial Officer

     A signed original of this written statement required by Section 906 has been provided to Valeant Pharmaceuticals International and will be furnished to the Securities and Exchange Commission or its staff upon request.