Calcium Channel Blockers

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Last updated 3:31 PM on 8/25/26
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5 Terms

1
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What do calcium channel blockers do?

  • Block Ca²⁺ entry into cardiac/vascular smooth muscle

  • Cause vasodilation

  • Some ↓ HR and contractility


2
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What are common indications?

  • Hypertension

  • Angina

  • Arrhythmias


3
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What are important side effects?

  • Hypotension

  • Dizziness

  • Peripheral edema

  • Some can cause bradycardia


4
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What are the PT implications?

  • Monitor HR and BP

  • Watch for orthostatic symptoms

  • Monitor edema


5
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How can you recognize calcium channel blockers?

  • Many end in -dipine

    • Amlodipine

    • Nifedipine

  • Important exceptions:

    • Diltiazem

    • Verapamil

  • NPTE: -dipine = calcium channel blocker