What is a pill that has WPI on one side and 39 68 on the other side

Not Medical Advice: A white oval pill with imprints WPI and 39 68 on the other side is a Chlorzoxazone. It is used to treat muscle spasm.
Updated on Monday, February 06 2012 at 02:21PM EST
Collections: wpichlorzoxazonespasmthe other sidepill