Carisoprodol is a muscle relaxant that works centrally and is metabolized into meprobamate, which has sedative and dependency potential. It acts quickly but is generally short-term due to abuse risk. Cyclobenzaprine is also a centrally acting muscle relaxant, structurally similar to tricyclic antidepressants, used for muscle spasms with less abuse potential but more drowsiness and dry mouth. It is usually prescribed for short-term relief overall clinical use differs significantly today.