Which of the following drug used against glaucoma is contraindicated in patients with urine retention: (A) Disopyramide, (B) Flecainide, (C) Lidocanine, (D) Tocainide
Answer is A. Class Ia Antiarrhythmics have anticholinergic property. Disopyramide is a class Ia antiarrhythmic with maximum anticholinergic action & hence contraindicated in patients with urine retention & glaucoma.