This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET 2019, Subject name: Ophthalmology
[{'content': 'The ocular hypotensive agent causing apnoea in infants is:- \nSelect and explain. \nA. Latanoprost, B. Timolol, C. Betaxolol, D. Brimonidine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Brimonidine is selective alpha 2 receptor agonist. It can cause drowsiness and respiratory depression in children and infants and therefore contraindicated in them.', 'role': 'assistant'}]