In the weaning process and reduction of drugs,...to the patient client...in order to make justifiable decisions on what did what... to who...once individual drugs are withdrawn,...can they then decipher through process of elimination...whether the antagonists rose again after simply stopping the medication...one at a time.

Maybe, this is too simplistic...Butt,...IF I stop beating you...you stop bruising...IF you continue to bruise...it wasn't the beating.