A drug use evaluation at Wake Forest University Baptist Medical Center (WFUBMC) was initiated following a change in institution-approved guidelines for the administration of amphotericin B lipid complex injection (ABLC) (Abelcet, Enzon). This study was conducted to determine compliance with the new guidelines among prescribers and to characterize the population of patients receiving ABLC. A total of 153 patients received ABLC from April 2001 through December 2002. One hundred thirty-three patients (87%) met 1 or more of the institutional criteria for ABLC administration and 20 (13%) receiving ABLC did not meet the guidelines. The mean baseline serum creatinine (SCr) value among patients meeting institutional guidelines (n=133) was 2.0 mg/dL (range, 0.5–5.0 mg/dL). Among patients who did not meet the guidelines (n=20), the mean baseline SCr level was 1.7 mg/dL (range, 0.6–2.9 mg/dL). The use of new guidelines, which were less stringent than previous guidelines, resulted in earlier administration..