Case report of substance dependence with buprenorphine and mephentermine.

Here is reported an unusual case of substance dependence with buprenorphine, mephentermine, & promethazine. This combination taken through intramuscular route produced a relatively mild & delayed abstinence syndrome with features viz. increased sleep and appetite in the patients. The neurophysiological basis for use of this rare form of additive (mephentermine) with buprenorphine is speculated.