I have a small blue pill with a small m in a box on one side and a 15 on the other the bottle says morphine but im not sure

Not Medical Advice:

A round blue pill with the imprint 15 on the front, and M (within a square) on the back of it is 15mg of Morphine sulfate (made by Mallinckrodt Pharmaceuticals).

Morphine sulfate is a narcotic analgesic that is used to treat chronic pain, and pain.

Abuse of this drug may lead to psychological or physical dependence.

This prescription-only medication may pose a risk to an unborn fetus, and should be used only under a doctor's supervision.

Healthcare Professionals Network warns that primary care professionals are often underestimating the risk of patients misusing opioids like Morphine sulfate, suggesting that physicians may require additional education in using risk assessment tools.

Monday, May 12 2014
Source: http://www.drugs.com/imprints/15-m-8689.html