This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy: General Principles, Subject name: Pharmacology
[{'content': 'A patient has hepatic encephalopathy. The drug of choice for gut sterilization in this patient is: \nSelect and explain. \nA. Neomycin, B. Netilmicin, C. Bleomycin, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (A) Neomycin(Ref: KDT 8/e p799)When administered by oral route, neomycin is not absorbed and kills intestinal bacteria. These bacteria are responsible for the generation of NH3 Excessive ammonia can result in hepatic encephalopathy. Neomycin decreases NH3 by killing intestinal bacteria.', 'role': 'assistant'}]