Rapid Rx Quiz: Calcium Channel Blockers

Mary L. Windle, PharmD


October 17, 2022

Also called calcium antagonists, calcium channel blockers (CCBs) reduce blood pressure and slow the heart rate by preventing calcium from entering heart and artery cells. This blockage allows the cells to contract more strongly, enabling blood vessels to relax and open. CCBs are used by about 1 in 5 people who have hypertension in the United States and are among the most commonly prescribed drugs worldwide. How much do you know about CCBs, including key indications, adverse effects, and contraindications? Test yourself with this short quiz.


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