What is Soma? Soma(Carisoprodol) is a muscle relaxant that effectively tackles pain and inflammation due to strain and sprain. It is an effective drug for managing acute musculoskeletal pain. The effect of the drug begins within thirty minutes, and the impact of the medicine lasts for three to four hours. Buy Watson Soma Online , an FDA-approved medication recommended for short-term use. It has a rapid 30-minute action, and it is metabolized via Liver Cytochrome P450.