Definitions for beta blocker
be·ta block·er

Princeton's WordNetRate this definition:0.0 / 0 votes

1. beta blocker, beta-blocking agent, beta-adrenergic blocker, beta-adrenergic blocking agentnoun

   any of various drugs used in treating hypertension or arrhythmia; decreases force and rate of heart contractions by blocking beta-adrenergic receptors of the autonomic nervous system

WiktionaryRate this definition:0.0 / 0 votes

1. beta blockernoun

   A blocking agent, one of a class of drugs used to treat hypertension and control the rate at which the heart beats.

2. Etymology: From action of drug which blocks beta-adrenergic receptors.

WikipediaRate this definition:0.0 / 0 votes

1. Beta blocker

   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). They are also widely used to treat high blood pressure, although they are no longer the first choice for initial treatment of most patients.Beta blockers are competitive antagonists that block the receptor sites for the endogenous catecholamines epinephrine (adrenaline) and norepinephrine (noradrenaline) on adrenergic beta receptors, of the sympathetic nervous system, which mediates the fight-or-flight response. Some block activation of all types of β-adrenergic receptors and others are selective for one of the three known types of beta receptors, designated β1, β2 and β3 receptors. β1-adrenergic receptors are located mainly in the heart and in the kidneys. β2-adrenergic receptors are located mainly in the lungs, gastrointestinal tract, liver, uterus, vascular smooth muscle, and skeletal muscle. β3-adrenergic receptors are located in fat cells.Beta receptors are found on cells of the heart muscles, smooth muscles, airways, arteries, kidneys, and other tissues that are part of the sympathetic nervous system and lead to stress responses, especially when they are stimulated by epinephrine (adrenaline). Beta blockers interfere with the binding to the receptor of epinephrine and other stress hormones and weaken the effects of stress hormones. In 1964, James Black synthesized the first clinically significant beta blockers—propranolol and pronethalol; it revolutionized the medical management of angina pectoris and is considered by many to be one of the most important contributions to clinical medicine and pharmacology of the 20th century.For the treatment of primary hypertension, meta-analyses of studies which mostly used atenolol have shown that although beta blockers are more effective than placebo in preventing stroke and total cardiovascular events, they are not as effective as diuretics, medications inhibiting the renin–angiotensin system (e.g., ACE inhibitors), or calcium channel blockers.

ChatGPTRate this definition:0.0 / 0 votes

1. beta blocker

   A beta blocker, also known as a beta-adrenergic blocking agent, is a type of medication that works by blocking the action of certain natural chemicals in your body, such as adrenaline, on the heart and blood vessels. This effect reduces heart rate, blood pressure, and strain on the heart, and is often used to treat conditions such as hypertension, angina, heart attack, arrhythmia, migraines and glaucoma.

WikidataRate this definition:0.0 / 0 votes

1. Beta blocker

   Beta blockers are a class of drugs. Beta blockers target the beta receptor. Beta receptors are found on cells of the heart muscles, smooth muscles, airways, arteries, kidneys, and other tissues that are part of the sympathetic nervous system and lead to stress responses, especially when they are stimulated by epinephrine. Beta blockers interfere with the binding to the receptor of epinephrine and other stress hormones, and weaken the effects of stress hormones. They are particularly used for the management of cardiac arrhythmias, protecting the heart from a second heart attack after a first heart attack, and hypertension. In 1962, Sir James W. Black found the first clinically significant beta blockers—propranolol and pronethalol; it revolutionized the medical management of angina pectoris and is considered by many to be one of the most important contributions to clinical medicine and pharmacology of the 20th century. Beta blockers block the action of endogenous catecholamines epinephrine and norepinephrine in particular, on β-adrenergic receptors, part of the sympathetic nervous system which mediates the fight-or-flight response. Three types of beta receptors are known, designated β1, β2 and β3 receptors. β1-adrenergic receptors are located mainly in the heart and in the kidneys. β2-adrenergic receptors are located mainly in the lungs, gastrointestinal tract, liver, uterus, vascular smooth muscle, and skeletal muscle. β3-adrenergic receptors are located in fat cells.

Matched Categories

1. • Blocker

How to pronounce beta blocker?

1. Alex

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How to say beta blocker in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of beta blocker in Chaldean Numerology is: 9

2. Pythagorean Numerology

   The numerical value of beta blocker in Pythagorean Numerology is: 4

Examples of beta blocker in a Sentence

1. Spencer Richlin:

   For example, take a woman with hypertension, she may normally be on an ACE inhibitor but during pregnancy her doctor should switch her to a beta blocker.

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=beta blocker
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Beta_Blocker
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Beta_Blocker
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=beta blocker