1 EXHIBIT 23.3 ADVISORY CAPITAL PARTNERS, INC. 176 Federal Street, 5th Floor Boston, Massachusetts 02110 Tel: (617) 261-7682 Fax: (617) 261-1529 December 14, 1995 Chemex Pharmaceuticals, Inc. One Executive Drive Fort Lee, New Jersey 07024 Attention: Herbert H. McDade, Jr. Chairman of the Board and Chief Executive Officer Re: CONSENT We consent to the inclusion in this Registration Statement on Form S-4 of Chemex Pharmaceuticals, Inc. of our opinion addressed to the Board of Directors of Chemex Pharmaceuticals, Inc. We also consent to the description of and reference to our firm and such opinion under the caption "Opinion of Financial Advisor." Sincerely yours, ADVISORY CAPITAL PARTNERS, INC. By: /s/ FRANK W. HAYDU III ------------------------------------ Frank W. Haydu III Managing Director 3