A multidisciplinary cost-containment program for promoting oral metronidazole in place of oral vancomycin as initial therapy of antibiotic-associated colitis (AAC) is described. The pharmacy department and the division of infectious diseases implemented the program in two phases. In the first phase, a one-year retrospective drug-use review in patients with AAC treated with oral vancomycin was conducted to determine the average cost of therapy per treatment course. In the second phase, the use of oral metronidazole instead of oral vancomycin for initial treatment of AAC was promoted using inservice-education programs and distribution of pocket-size brochures containing AAC treatment guidelines to medical staff. The pharmacy and therapeutics committee supported the program by endorsing metronidazole as the drug of choice for AAC and by distributing follow-up progress reports of the program to medical staff. Pharmacists on the nursing units were responsible for enforcing the program stipulations regarding vancomycin and metronidazole use and for collecting data on patient-specific drug use. Six months after implementation of the program, the average cost of drug therapy for AAC had decreased by 89%, from $343.24 per patient to $37.50 per patient. The projected annual savings resulting from the program was $38,829.02. All prescribing physicians and dispensing pharmacists complied 100% with the program stipulations regarding drug use. The multidisciplinary program described here was successful in promoting the use of oral metronidazole for initial therapy of AAC.

 

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