Calcium channel blockers
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Calcium channel blockers
Calcium channel blockers are medications commonly used to:
- Lower blood pressure and prevent chest pain in people who have angina.
- Treat hypertension.
The following calcium channel blockers can also slow heart rate:
- Diltiazem (such as Cardizem, Dilacor XR, Tiazac)
- Verapamil (such as Calan SR, Isoptin SR)
Diltiazem and verapamil are used for atrial fibrillation.
By slowing heart rate and lowering blood pressure, calcium channel blockers help reduce the heart's workload. Calcium channel blockers may also directly improve blood flow to the heart by reversing spasms that can occur in the coronary arteries, which supply blood to the heart muscle. Successful treatment of high blood pressure also helps reduce the risk of atrial fibrillation.
Credits
| Author | Robin Parks, MS |
| Editor | Kathleen M. Ariss, MS |
| Associate Editor | Pat Truman |
| Primary Medical Reviewer | Caroline S. Rhoads, MD - Internal Medicine |
| Specialist Medical Reviewer | Laurence Epstein, MD - Cardiac Electrophysiologist |
| Last Updated | January 18, 2007 |
| Last updated: | January 18, 2007 |
|---|---|
| Author: | Robin Parks, MS |
| Reviewed By: | Caroline S. Rhoads, MD - Internal Medicine, Laurence Epstein, MD - Cardiac Electrophysiologist |
| Editors: | Kathleen M. Ariss, MS, Pat Truman |
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