Calcium Channel Blocker
Calcium Channel Blocker
Calcium Channel Blockers (pronunciation: KAL-see-um CHAN-nel BLOK-ers), also known as CCBs, are a type of medication that disrupts the movement of calcium into cells of the heart and blood vessel walls, resulting in lower blood pressure.
Etymology
The term "Calcium Channel Blocker" is derived from its function. "Calcium" refers to the element that these drugs regulate in the body. "Channel" refers to the pathway through which calcium moves into cells. "Blocker" refers to the drug's ability to inhibit or 'block' this movement.
Function
Calcium Channel Blockers work by blocking calcium from entering cells in the heart and blood vessel walls. This results in a decrease in blood pressure and reduces the heart's workload, making it an effective treatment for hypertension and angina.
Types
There are two main types of Calcium Channel Blockers: dihydropyridines and non-dihydropyridines. Dihydropyridines, such as amlodipine, primarily affect the blood vessels. Non-dihydropyridines, such as verapamil and diltiazem, have a greater effect on the heart.
Side Effects
Like all medications, Calcium Channel Blockers can have side effects. These may include headache, dizziness, flushing, and swelling in the lower legs or feet.
Related Terms
External links
- Medical encyclopedia article on Calcium Channel Blocker
- Wikipedia's article - Calcium Channel Blocker
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