Exhibit 99

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

AND CHIEF FINANCIAL OFFICER

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 Pro-Pharmaceuticals, Inc. (the “Company”) on Form 10-KSB for the year ended December 31, 2002, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned officer of the Company does hereby 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, as amended; and

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

By:	/s/ David Platt, Ph.D.
	Name: David Platt, Ph.D. Title:  President, Chief Executive Officer, Treasurer and Secretary (Principal Executive, Financial and Accounting Officer)