Pain-O-Soma 500mg contains generic Carisoprodol. It is a muscle relaxant. This medicine is used to treat musculoskeletal associated pain and wound. Carisoprodol works by inhibiting the communication of this musculoskeletal associated pain between the nerves to the brain. Hence it suppresses the sensation of pain between the brain and nerves. This medicine is also used in the treatment of pain from the musculoskeletal disorders such as spasm, muscle tremor and stiffness of muscle. Carisoprodol works on the CNS (central nervous system) and gives relief in ache. Pain-O-Soma 500 mg offers pain relief for a shorter duration so this medicine should be taken 2-3 times in a day. Pain-O-Soma 500 mg is a safer drug than that of the other muscle relaxants.