What is a round brown pill with an m on one side & a p/t on the other side?

Not Medical Advice: Pill with imprint M P/T is Tramadol HCl and Acetaminophen with strengths of 37.5 mg/325 mg. It is used in the treatment of pain.

Sunday, February 05 2012
Source: http://www.drugs.com/imprints/m-p-t-13994.html