This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharmacokinetics, Subject name: Pharmacology
[{'content': 'Which of the following drugs is an inducer of microsomal enzymes? \nSelect and explain. \nA. Erythromycin, B. Isoniazid, C. Ketoconazole, D. Rifampicin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Enzyme Inducers G Griseofulvin P Phenytoin R Rifampicin S Smoking Cell Carbamazepine Phone Phenobarbitone Rifampicin induces the following cytochrome enzymes: CYP3A4 CYP1A2 CYP2C9 CYP2C19', 'role': 'assistant'}]