<unk>  is an anticholinergic that is FDA approved for the treatment of postencephalitic and idiopathic parkinsonism and drug-induced|extrapyramidal disorders.   Common adverse reactions include tachycardia, constipation, nausea, xerostomia, blurred vision, dysuria, and urinary retention.
Benztropine
Homatropine
Droperidol
Azidomorphine
Benperidol
Etybenzatropine
Atropine 
Apomorphine