NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Ace your North American Pharmacist Licensure Examination (NAPLEX) with our comprehensive practice test. Features include interactive flashcards, multiple-choice questions, with detailed hints and explanations. Fast-track your pharmacy career today!

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Which of the following is a non-DHP CCB?

  1. Amlodipine

  2. Nifedipine

  3. Verapamil

  4. Clevidipine

The correct answer is: Verapamil

Verapamil is the correct answer as it is a non-DHP (dihydropyridine) calcium channel blocker (CCB). Verapamil belongs to the non-DHP CCB class, which works by inhibiting calcium ion influx through L-type calcium channels in the heart and smooth muscle cells. This action results in vasodilation and decreased heart rate, making verapamil suitable for conditions like hypertension, angina, and certain arrhythmias. Amlodipine and Nifedipine are examples of DHP CCBs, which primarily act on vascular smooth muscle and are commonly used to treat hypertension and angina. Clevidipine, on the other hand, is a newer intravenous medication used for the rapid reduction of blood pressure in perioperative and acute hypertensive situations.