Pharmacy initiatives to reduce clindamycin use

The effectiveness of clinical pharmacists and attending physicians in altering the prescribing of metronidazole and clindamycin by resident physicians was evaluated, and the effect of these changes on antibiotic costs was determined. In July 1983, clinical pharmacists and attending physicians educated resident physicians about the efficacy and cost-effectiveness of substituting metronidazole for clindamycin in the treatment of intraabdominal and pelvic infections. A three-month educational program was implemented, which included distribution of a newsletter and involvement of clinical pharmacists in patient rounds. The use patterns of these drugs were then monitored for a 12-month period. A total of 425 treatment periods for 414 patients were reviewed, representing 91% of all therapy with metronidazole and clindamycin. Metronidazole use increased from 18.2% one month after implementation of the educational program to a plateau of 50% by November. Clindamycin expenditures decreased by more than 50% from the previous fiscal year, resulting in a savings of $33,469 to the pharmacy. The prescribing patterns of resident physicians were altered and cost saving were realized as a result of a comprehensive educational program that focused on substituting metronidazole for clindamycin. The program's success was enhanced because an equally efficacious agent was available and because of the participation of clinical pharmacists in patient rounds.