EXHIBIT 23 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in the Post-Effective Amendment to Registration Statement No. 33-13901, and in Registration Statement Nos. 33-73696, 33-73698, 33-73700, 333-17349, 333-17351, 333-50356, 333-75388 and 333-75391 of Barr Laboratories, Inc. on Form S-8 of our report dated August 9, 2002, appearing in this Annual Report on Form 10-K of Barr Laboratories, Inc. for the year ended June 30, 2002. DELOITTE & TOUCHE LLP Stamford, Connecticut August 26, 2002