PMID: 2114789Jul 1, 1990Paper

Implementing therapeutic interchange of intravenous famotidine for cimetidine and ranitidine

American Journal of Hospital Pharmacy
T Oh, T G Franko

Abstract

The steps taken to implement a therapeutic interchange program for i.v. histamine H2-receptor antagonists and to determine the potential cost savings are described. A literature review conducted by pharmacists at a 273-bed nonteaching community hospital showed that i.v. famotidine was as safe and effective as i.v. cimetidine or ranitidine and that it was feasible to add famotidine to total parenteral nutrition (TPN) solutions. Because of famotidine's cost advantage, it was proposed that i.v. famotidine be used in place of specific dosage regimens of i.v. ranitidine or cimetidine and in TPN solutions ordered for patients receiving concurrent H2-antagonist therapy. The approval of the hospital attorney and hospital gastroenterologists was secured, and a formal proposal was submitted. The pharmacy department distributed a memorandum describing the advantages of famotidine, conducted inservice education sessions, and sought the compliance of physicians by placing reminders on order forms and patient charts and by contacting physicians directly. The program was implemented in May 1989. During the first three months, only one physician insisted that patients receive i.v. ranitidine rather than famotidine. It was projected that the in...Continue Reading

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