Exhibit 23.3 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in this Registration Statement of Phoenix International Life Sciences Inc. on Form S-8 of our report related to IBRD-Rostrum Global Inc. and subsidiaries, dated March 4, 1997 appearing in the Registration Statement of Phoenix International Life Sciences Inc. on Form F-4 filed April 7, 1999. DELOITTE & TOUCHE LLP Costa Mesa, California May 4, 1999 - ---------------------------