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: Ophthalmology
[{'content': 'Drug CONTRAINDICATED in glaucoma patients suffering from bronchial asthma is: September 2012, March 2013 (g) \nSelect and explain. \nA. Betaxolol, B. Brimonidine, C. Timolol maleate, D. Latanoprost', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C i.e. Timolol maleate Contraindications of Timolol maleate Bronchial asthma; A history of bronchial asthma; Severe chronic obstructive pulmonary disease Sinus bradycardia; Second or third degree atrioventricular block; Ove cardiac failure Cardiogenic shock; Hypersensitivity to any component of this product.', 'role': 'assistant'}]