The concurrent use of two or more drugs with anticholinergic activity--such as an antipsychotic drug (eg, chlorpromazine), an antiparkinsonian drug (eg, trihexyphenidyl), and/or a tricyclic antidepressant (eg, amitriptyline)--commonly results in excessive anticholinergic effects, including dry mouth and associated dental complications, blurred vision, and, in patients exposed to high temperature and humidity, hyperpyrexia.
<antipsychotic drug, effect, antiparkinsonian drug>, <antipsychotic drug, effect, trihexyphenidyl>, <antipsychotic drug, effect, tricyclic antidepressant>, <antipsychotic drug, effect, amitriptyline>, <chlorpromazine, effect, antiparkinsonian drug>, <chlorpromazine, effect, trihexyphenidyl>, <chlorpromazine, effect, tricyclic antidepressant>, <chlorpromazine, effect, amitriptyline>, <antiparkinsonian drug, effect, tricyclic antidepressant>, <antiparkinsonian drug, effect, amitriptyline>, <trihexyphenidyl, effect, tricyclic antidepressant>, <trihexyphenidyl, effect, amitriptyline>