I just found small white pill on my nephew that I think is a painkiller but cant seem to find any pics on the PDR online. I have experience with these type things but do not recognize this particular pill and want to make sure what it is before I accuse him of anything in front of his parents. Its a small, round white pill, with an M on one side, and on the bottom of the other side of the pill is a small 5. Anyone know if this is a narcotic or specifically what it is? Thank you.