Which of the following is a calcium channel blocker?

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Study for the Texas Medication Aide Test. Revise with flashcards and multiple choice questions, each question has hints and explanations. Prepare effectively for your certification!

Multiple Choice

Which of the following is a calcium channel blocker?

Explanation:
Calcium channel blockers inhibit L-type calcium channels in vascular smooth muscle (and sometimes the heart), causing arteries to relax and blood pressure to fall. Amlodipine is a calcium channel blocker, specifically a dihydropyridine that mainly relaxes arterial smooth muscle to lower blood pressure. The other drugs work by different mechanisms: lisinopril is an ACE inhibitor, irbesartan is an ARB, and metoprolol is a beta-blocker. Therefore, amlodipine best fits the calcium channel blocker mechanism.

Calcium channel blockers inhibit L-type calcium channels in vascular smooth muscle (and sometimes the heart), causing arteries to relax and blood pressure to fall. Amlodipine is a calcium channel blocker, specifically a dihydropyridine that mainly relaxes arterial smooth muscle to lower blood pressure. The other drugs work by different mechanisms: lisinopril is an ACE inhibitor, irbesartan is an ARB, and metoprolol is a beta-blocker. Therefore, amlodipine best fits the calcium channel blocker mechanism.

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