What pill is pink+has an m on 1side+58 59 on other

"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?

Wednesday, August 01 2012
Source: http://www.drugs.com/imprints/m-58-59-15962.html