Controlling cephalosporin and aminoglycoside costs through pharmacy and therapeutics committee restrictions

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Abstract
The cost-reducing effect of antibiotic restrictions imposed by a pharmacy and therapeutics (P & T) committee was evaluated. The pharmacy department developed guidelines restricting the use of second-generation cephalosporins and aminoglycosides in cooperation with the infectious disease division. The P & T committee approved the restrictions, and the pharmacy department disseminated information on the program to the hospital's physicians. Specific indications were developed for the use of amikacin, tobramycin, cefoxitin, and cefamandole. In order to prescribe a restricted antibiotic, physicians are required to write an approved indication on the physician's order form. Residents cannot prescribe restricted antibiotics for unapproved indications unless they acquire the signature of an attending physician. Pharmacy personnel closely monitor the restricted antibiotic use and enforce the established guidelines. The major impact of the restrictions was the reversal of a previous trend toward the use of more expensive second-generation cephalosporins and tobramycin to the use of first-generation cephalosporins and gentamicin. Injectable antibiotic expenses decreased by $193,172 in the first 12 months of the program. Antibiotic restrictions imposed by the P & T committee were effective in reducing the cost of antimicrobial therapy.

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