Procyclidine HClAntiparkinsonism Preparation (CNS Preparations) Indication: Parkinson’s disease. Dosage & Administration: 2.5 mg 3 times a day, then 5 mg 3 times a day and occasionally 5 mg at night. Preparation: Perkinil® Tablet: Box containing 10 x 20 tablets in blister pack.Perkinil® Injection: Box containing 1 ampoule in blister pack with a sterile disposable syringe.