This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Which of the following drug used against glaucoma is contraindicated in patients with urine retention 
Select and explain. 
A. Disopyramide, B. Flecainide, C. Lidocanine, D. Tocainide
A: Disopyramide
Answer: A: Disopyramide 
Explanation: Class Ia Antiarrhythmics have anticholinergic property. Disopyramide is a class Ia antiarrhythmic with maximum anticholinergic action & hence contraindicated in patients with urine retention & glaucoma.