Beta-blocker
Beta-blocker
Beta-blockers, also known as beta-adrenergic blocking agents, are a class of drugs that are predominantly used to manage abnormal heart rhythms, and to protect the heart from a second heart attack (myocardial infarction) after a first heart attack (secondary prevention). They are also widely used to treat high blood pressure (Hypertension), although they are no longer the first choice for initial treatment of high blood pressure.
Pronunciation
Beta-blocker: /ˈbiːtəˌblɒkər/
Etymology
The term "beta-blocker" is derived from the class of receptors they inhibit, known as beta receptors (Beta adrenergic receptor).
Usage
Beta-blockers are used to treat a variety of conditions including Cardiac arrhythmia, Angina pectoris, Hypertension, and Glaucoma. They work by blocking the effects of the hormone epinephrine, also known as adrenaline, and by causing the heart to beat more slowly and with less force, which reduces blood pressure.
Related Terms
See Also
External links
- Medical encyclopedia article on Beta-blocker
- Wikipedia's article - Beta-blocker
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