It's actual name is scopolamine, made from a very common plant in south america but the name is slipping my mind at the moment. Starts with a B. It was originally meant to treat divers with motion sickness and some other problem I forget that as well but I know where to get it and cheap.
*Had to edit because I would NOT classify this as a drug, more of a mind control substance. Takes about 30 minutes to kick into effect which sucks. And if you were to use it on someone to say drain their bank account or whatever pleases you then you'd need to get your doses correct because that shit can kill you FAST.