What white small pill has a 2 on one side and a m on the other

Not Medical Advice: Pill imprint 2 M has been identified as Acetaminophen and codeine phosphate 300 mg / 15 mg. It is used in the treatment of cough.
Updated on Thursday, February 02 2012 at 09:31AM EST
Collections: codeine phosphatecoughacetaminophen