Wat pill has a m on one side and 58/59 on the other?

Not Medical Advice: "M 58 59" is Metaxalone (800 mg). Metaxalone is used in the treatment of muscle spasm and fibromyalgia. Do you need info on other imprints?
Answered by kgb agent Michael F on Wednesday, March 28 2012 at 09:42PM EDT