Calcium Channel Blocker Drugs
Certain prescription drugs, called calcium channel blockers, are used to treat several conditions affecting the cardiovascular system (the heart and blood vessels). Specifically, these medications are used to treat:
- High blood pressure (hypertension)
- Certain irregular heart rhythms (arrhythmias), including atrial fibrillation, atrial flutter, and paroxysmal supraventricular tachycardia (PSVT)
- Chest pain (angina).
Calcium channel blockers help to slow down the rate at which calcium moves into your heart and blood vessel walls. This, in turn, helps to relax the blood vessels, which improves blood flow and makes it easier for the heart to pump blood.
These drugs are not appropriate for everyone. For example, people with liver or kidney disease, sick sinus syndrome, myasthenia gravis, or other conditions may need to use a different medication. In addition, grapefruit products should be avoided while using these products.
(Click Calcium Channel Blockers to learn more about these drugs, including the different types, possible side effects, dosing guidelines, and more.)