EXHIBIT 23(a) INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in Registration Statement Nos. 33-64451, 333-32132 and 333-54600 on Form S-8 and in Registration Statements Nos. 33-61087, 333-5921, 333-18041, 333-61993 and 333-40970 on Form S-3 of our report dated March 1, 2001 (which expresses an unqualified opinion and includes an explanatory paragraph relating to the Company's ability to continue as a going concern) appearing in this Annual Report on Form 10-K of OXIS International, Inc. for the year ended December 31, 2000. DELOITTE & TOUCHE LLP Portland, Oregon March 21, 2001