Carisoprodol, which is sold under the brand name Pain O Soma 500 mg and other names, was first used as a muscle relaxant to ease the pain of diseases like muscle strains and spasms. But you should be careful with this drug, especially if you want to use it to treat pain from diabetes neuropathy. Even though it was approved at first to help with pain management, it's still not clear how well it works for treating chronic pain like diabetic neuropathy. According to research, there aren't many perks, and other choices might be better.