Which of the following is a metabolite of carisoprodol: (A) Meprobamate, (B) Doxylamine, (C) Dimethadione, (D) Amphetamine
Answer is A. Refer Goodman Gilman 11/e p422 Meprobamate was used as a CNS depressant drug but is rarely indicated now due to its addictive propeies. It is a metabolite of carisoprodol, which is used as a centrally acting skeletal muscle relaxant