Carisoprodol, a muscle relaxant often prescribed for the relief of musculoskeletal pain, should be used only under a doctor’s guidance due to its potential for abuse and dependence. While some online vendors may offer Carisoprodol overnight without requiring a prescription, this practice is both illegal and potentially dangerous. Improper use can result in drowsiness, dizziness, and serious drug interactions. Always consult a licensed healthcare professional to ensure safe and effective use of this medication.