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: Surgery
[{'content': 'Haemodialysis is most effective in treating poisoning due to: \nSelect and explain. \nA. Amphetamine, B. Cocaine, C. Barbiturates, D. Opium', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Haemodialysis is used for the treatment of following poisoning: Salicylates, Boric Acid, Glutathimide,Methanol, Barbitutates, Thiocyanates.', 'role': 'assistant'}]