This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Pharmacology), Subject name: Pharmacology
All of the following are enzyme inducers of cytochrome p450 EXCEPT 
Select and explain. 
A. Phenytoin, B. Rifampicin, C. Isoniaz id, D. Erythromycin
D: Erythromycin
Answer: D: Erythromycin 
Explanation: (D) Erythromycin # Enzyme inducers: Phenytoin, phenobarbitone, primidone, carbamazepine, rifampin. Erythromycin is a CYP3A2 inhibitor.Mnemonic: GPRS Cell Phone - Griseofulvin, Phenytoin, Pifampcin, Smoking, Carbamazepine, Phenobarbitone