I have a small pill that has a "M" in it.

The pill with the imprint 7171 M is Gray and has the Tramadol Hydrochloride label on it.Mallinckrodt Pharmaceuticals supplies it.

The drug class narcotic analgesics include Tramadol, which is used in the treatment of back pain.During pregnancy, risk can't be ruled out.Tramadol is a Schedule 4 controlled substance.

To ensure the information on this page applies to your personal circumstances, always consult your healthcare provider.

Everything you need to know about prescription weight loss drugs can be found in our guide.