EXHIBIT 23.2 INDEPENDENT AUDITORS' CONSENT We consent to the use in this Amendment No. 2 to Registration Statement No. 333-110159 of Entropin, Inc. on Form SB-2 of our report dated March 4, 2003 (which report expresses an unqualified opinion and includes an explanatory paragraph relating to the Company's ability to continue as a going concern), appearing in the Prospectus, which is part of such Registration Statement. We also consent to the reference to us under the heading "Experts" in such Prospectus. /s/ Deloitte & Touche LLP San Diego, California January 7, 2004