Pain O Soma 500 is a medication that eases acute pain in the musculoskeletal system. It is a muscle relaxant that prevents nerves from communicating with the brain. In most cases, it is used to alleviate injury-related or internal pain. Because the effects of Pain O Soma 500 mg do not have any long-term effects on the body, doctors typically recommend taking this medication for a brief period, no more than three weeks at a time.