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: Pharmacology
[{'content': 'Which of the following antitubercular drugs do not need to be adjusted in presence of renal failure ? \nSelect and explain. \nA. Rifampicin, B. INH, C. Ethambutol, D. Pyrazinamide', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Rifampicin o Antitubercular drugs which do not require dose adjustment in renal failure : Rifampicin Rifabutin Rifapentine", 'role': 'assistant'}]