This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: A.N.S., Subject name: Pharmacology
A patient is having narrow angle glaucoma. Drug contraindicated in this patient is: 
Select and explain. 
A. Acetazolamide, B. Timolol, C. Homatropine, D. Pilocarpine
C: Homatropine
Answer: C: Homatropine 
Explanation: Ans. C. HomatropineAny drug having anti-cholinergic action can produce mydriasis in eye. Mydriasis is dangerous in a patient of glaucoma as it can precipitate the attack of angle closure glaucoma. Homatropine is an anti-cholinergic drug, therefore should be avoided in Glaucomatous patientSome other classes of drugs, i.e. tricyclic antidepressants, 1st generation anti-psychotic (phenothiazines), antihistamines and disopyramide possess significant antimuscarinic actions.