PAUL V. DESMOND, M.B., B.S.; RASHMI V. PATWARDHAN, M.D.; STEVEN SCHENKER, M.D.; K. V. SPEEG Jr., M.D., Ph.D.
We have studied chlordiazepoxide (Librium) disposition and elimination in eight normal subjects before and after 1 week of Cimetidine therapy, 300 mg orally four times a day. Cimetidine strikingly impaired the clearance of chlordiazepoxide from plasma, and this was, at least in part, due to decreased demethylation of the drug to N-desmethylchlordiazepoxide. Since the volume of distribution of chlordiazepoxide was not altered by cimetidine, the elimination half-life of chlordiazepoxide was also significantly prolonged by cimetidine therapy.
DESMOND PV, PATWARDHAN RV, SCHENKER S, SPEEG KV. Cimetidine Impairs Elimination of Chlordiazepoxide (Librium) in Man. Ann Intern Med. 1980;93:266–268. doi: 10.7326/0003-4819-93-2-266
Download citation file:
Published: Ann Intern Med. 1980;93(2):266-268.
Results provided by:
Copyright © 2018 American College of Physicians. All Rights Reserved.
Print ISSN: 0003-4819 | Online ISSN: 1539-3704
Conditions of Use