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': 'Prolonged treatment with INH leads to deficiency of: \nSelect and explain. \nA. Pyridoxine, B. Thiamine, C. Pantothenic acid, D. Niacin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (A) Pyridoxine(Ref: Katzung 11th/e p825, KDT 8th/e p818)Isoniazid can cause peripheral neuropathy due to deficiency of pyridoxine.', 'role': 'assistant'}]