NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Study for the NAPLEX exam with a comprehensive quiz featuring multiple-choice questions and in-depth explanations. Build your pharmacological knowledge and increase your chances of passing the pharmacist licensure examination!

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Which is not an inducer of CYP-1A2?

St. John's wort
Ritonavir
Ciprofloxacin
Smoking

The correct answer is: Ciprofloxacin

Ciprofloxacin is not an inducer of CYP-1A2. The correct answer is Ciprofloxacin because it is actually an inhibitor of CYP-1A2, not an inducer. St. John's wort, Ritonavir, and smoking are all known to induce CYP-1A2 activity, leading to the potential for drug interactions with medications that are metabolized by this enzyme.