Pain-O-Soma is a muscle relaxant that helps to relieve muscle pain and spasms. It contains Carisoprodol as its active ingredient, and works by blocking pain sensations between the nerves and the brain. Pain-O-Soma is used to treat muscle pain and discomfort caused by sprains, strains, and other muscle injuries. It is available in tablet form and should be taken by mouth, usually 3 times a day and at bedtime. Pain-O-Soma should only be used for short periods of time, usually up to 2 or 3 weeks.