This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autonomic nervous system, Subject name: Pharmacology
[{'content': 'Which of the following antiglaucoma drugs can cause heterochromia iridis \nSelect and explain. \nA. Timolol, B. Lantanoprost, C. Apraclonidine, D. Acetazolamide', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Refer katzung 12e p 328 PGF2 alpha agonists like lantanoprost can cause iris pigmentation (heterochromia iridis) and growth of eye lashes(hyperichosis) as adverse effect', 'role': 'assistant'}]