Dosage Parkinsonism Initially 1 mg the 1st day 2 mg the 2nd day, then increase by 2 mg daily up to 6-10 mg/day (depending on the optimal level). To be given tid-qid. parkinsonism 5-15 mg Drug-induced daily. Advisable to initiate therapy w/ single 1 mg dose. Elderly (>65 yr) Smaller dose required. Contents Indications Administration Contraindications