Carisoprodol Medication Description DescriptionCarisoprodol, sold under the brand name Soma among others, is a medication used for musculoskeletal pain. Use is only approved for up to three weeks. Effects generally begin within half an hour and last for up to six hours. It is taken by mouth. Common side effects include headache, dizziness, and sleepiness.Buy Soma online Formula: C12H24N2O4 Molar mass: 260.33 g/mol Drug class: Carbamate Onset of action: Rapid Trade name: Soma, others Elimination half-life: 2.5 hours Metabolism: Liver (CYP2C19-mediated)