<prompt> Anticholinergic drug used in parkinsonism -BenzhexolBeneserazidePirenzepineAtropine  <response>: Ans. is a i.e., Benzhexol Drugs for parkinsonasmIncreasing brain dopaminergic activityDecreasing brain cholinergic activityo Dopamine precursor - Levodopao Periphera decarboxylase inhibitors - Carbidopa, Benserazideo Dopaminergic agonists - Bromocriptine, Ropinirole. Pramipexal, Ritigotineo MAO-B inhibitor - Selegilineo COMT inhibitor - Entacapone, Tolcaponeo Dopamine facilitator - Amantidineo Central anticholinergic - Trihexyphenidyl Benzhexol, Procyclidine, Biperiden.o Antihistaminic - Orphenadrine, promethazine. 