January 23, 2007 - 12:15am
Pill has an M with a box around it on one side and other side is 57/71
Any idea? I think its a painkiller...asked for tylenol from friend handed me this...glad i looked at it...
Help!!
January 23, 2007 - 7:17am
#2
M 5771 is 10mg methadone.a
M 5771 is 10mg methadone.
a very strong opioid painkiller. far different from tylenol.
all thoughts and opinions expressed are those of my own and should not be mistaken for medical advice. i am not a doctor nor a pharmacist. all medical questions should be answered by a licensed pharmacist, doctor, or primary care manager.

sorry to clutter forum..got it..its methadone hydrochloride..in case anyone else needs to know..