Vicuron Pharmaceuticals (MICU) 10-Q 2004 Q3 Quarterly report

Exhibit 32.1

CERTIFICATION UNDER SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Vicuron Pharmaceuticals Inc. (the Company) on Form 10-Q for the quarterly period ended September 30, 2004 (the Report), each of the undersigned hereby certifies, pursuant to 18 U.S.C. 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

1. The Report fully complies with the requirements of Section 13(a) or Section 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 Company.

Date: November 4, 2004	/S/ GEORGE F. HORNER III
	George F. Horner III
	President and Chief Executive Officer
Date: November 4, 2004	/S/ DOV A. GOLDSTEIN, M.D.
	Dov A. Goldstein, M.D.
	Executive Vice President, Finance and Chief Financial Officer

This certification accompanies this periodic report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liability of that section. This certification will not be deemed to be incorporated by reference into any filing under the Securities Act or the Exchange Act, except to the extent that the registrant specifically incorporates it by reference.