Tardive dyskinesia (TD) is a form of drug-induced (iatrogenic ... Anticholinergic drugs, such as trihexyphenidyl and benztropine, may ameliorate symptoms of tardive dystonia and parkinsonism, but they ...

Significantly increased risk for tardive dyskinesia seen with doses >75 mg/day at last prescription and as maximum dose ...

The prescription of high dose was associated with an increased risk of TD, and the highest risk was observed in the group receiving >300 mg/day.