1 EXHIBIT 23.1 INDEPENDENT AUDITOR'S CONSENT We consent to the incorporation by reference in this Registration Statement of Atrix Laboratories, Inc. on Form S-8 of our report dated February 29, 2000, appearing in the Annual Report on Form 10-K of Atrix Laboratories, Inc. for the year ended December 31, 1999. /s/ Deloitte & Touche LLP DELOITTE & TOUCHE LLP Denver, Colorado September 29, 2000