This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy, Subject name: Pharmacology
[{'content': 'Prolonged treatment with INH leads to deficiency of \nSelect and explain. \nA. Pyridoxine, B. Thiamine, C. Pantothneic acid, D. Niacin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Refer Katzung 11/e p825 Isoniazid can cause peripheral neuropathy It is due to deficiency of Pyridoxine', 'role': 'assistant'}]