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Beta blockers, also spelled β-blockers, are a class of medications that are predominantly used to manage abnormal heart rhythms (), and to protect the heart from a second heart attack after a first heart attack (secondary prevention). [1]
By reducing sympathetic stimulation of the heart, beta blockers decrease heart rate, blood pressure and cardiac output, and hence heart oxygen consumption. Beta-blockers alleviate ischemic pain, and have also been proved to reduce the size of infarcted heart muscle, the risk of arrhythmias, and the proportion of patients with acute coronary ...
Beta-blockers act as competitive antagonists that block the effects of catecholamines at beta-adrenergic receptor sites, resulting in reduced rate and force of contraction of the heart, as well as reduced peripheral vascular resistance. [14] Non-selective beta-blockers: propranolol, nadolol, timolol
A heart attack can cause symptoms such as: Chest pain that often radiates to your left shoulder, neck, or arm. Abdominal pain. ... Beta-blockers. Calcium-channel blockers. Disopyramide.
Cardiovascular diseases — such as stroke, coronary artery disease, peripheral artery disease, heart attack, and heart failure. ... beta-blockers, corticosteroids, and antiretroviral drugs.
Myocardial infarction (heart attack) Since beta 1 receptor are mainly located in the heart, most beta 1 blockers take abnormalities associated with the heart as the target. [5] It treats medical conditions like hypertension, arrhythmias, heart failure, chest pain, myocardial infarction.
Beta blockers are used in the prophylaxis [3] of exertional angina by reducing the myocardial oxygen demand below the level that would provoke an angina attack. They are contraindicated in variant angina and can precipitate heart failure .
Beta-blockers. Other medications, like buspirone ... or to increase heart function in people who’ve recently had a heart attack. Certain beta blocker medications are also effective at treating ...
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