An M357 hydrocodone pill? My friend had some, (Not knowing what they were) I took three because I was almost positive that M357 was hydrocodone. But I was in his girlfriend's car and looking at it (after I took it) it looked kind of like A357, maybe A356. I tried to find an ID of a pill with either of those inscriptions, but I couldn't find any. It was a short white ovular (haha, is that a word?) pill, by the way, with nothing on the back, and the part where it was incripted was I guess concave IE not flat. And I wanted to see if the M357 hydrocodone pill was what I took. I'd appreciate any help. Much love. Hashbrownies (is the master of disaster)