I take
suboxone and I know for a fact that even a small piece of an 8mg pill will block any
other opiate...Now, there may be exceptions based on how long the person is taking suboxone, but I remember three years ago taking suboxone one day, then trying to take herion and NOTHING happened...and, if you suspect she is taking heroin, make her take a suboxone;) It will put the user into rapid withdrawal if, say, your daughter has been taking heroin long enough to obtain a habit (from the heroin)...