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': 'Pseudojaundice is an adverse effect of: \nSelect and explain. \nA. Phenytoin, B. Rifabutin, C. Omeprazole, D. Chlorpromazine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Rifabutin: It is related to rifampin in structure and. mechanism of action; but less active against M. tuberculi and more active against MAC. Only paial cross resistance occurs between the two. In a dose of 300 mg/ day rifabutii1 is used for prophylaxis of MAC infection in AIDS patient:; For the treatment of established MAC infection, it has beer. added to ethambutol + clarithromycin/ azithrom&; cir Gastrointestinal intolerance, rashes, granulocytopeni', 'role': 'assistant'}]