What is a round medium thick sized peach colored pill with M on one side and m s 60 on the other side?

Pill imprint M MS 60 has been identified as Morphine sulfate extended release 60 mg. Morphine is used in the treatment of pain; chronic pain.

Sunday, August 12 2012
Source: http://www.drugs.com/imprints/m-ms-60-18152.html