<prompt> Which of the following is a metabolite of carisoprodol?DoxylamineMeprobromateDimethadioneAmphetamine  <response>: Ans. B MeprobamateRef: Goodman and Gilman 11the p422Meprobamate was used as a CNS depressant drug but is rarely indicated now due to its addictive properties. It is a metabolite of carisoprodol, which is used as a centrally acting skeletal muscle relaxant. 