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': 'Ahralgia is commonly caused by which ATT drug \nSelect and explain. \nA. INH, B. Rifampicin, C. Pyrazinamide, D. Ethambutol', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ahralgia is caused by pyrazinamide ,which may be non gouty or due to hyperureemia secondary to inhibition of uric acid secretion in the kidney Ethambutol also produces hyperuricemia due to interferance with urate excretion Refer KDT 6/e p742', 'role': 'assistant'}]