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': 'Which of the following statements is not true about rifabutin as compared to rifampicin? \nSelect and explain. \nA. It has longer half-life than rifampicin, B. It is more effective for newly diagnosed TB as compared to rifampicin, C. It has lesser incidence of drug interactions as compared to rifampicin, D. It is more effective against MAC as compared to rifampicin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (B) It is more effective for newly diagnosed TB as compared to rifampicin(Katzung 13th/817,820) RifampicinRifabutinHalf lifeShorterLongerCYP inhibition (drug interactions)MarkedWeakEfficacy against Mycobacterium tuberculosisMoreLessEfficacy against MACLessMoreHepatotoxic potentialPresentAbsent', 'role': 'assistant'}]