β-blocker

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

Meanings

nounβ-blocker (plural β-blockers)

plural β-blockers

  1. abbreviationAbbreviation of beta blocker.

    Blockade of β₂-adrenoceptors by non-selective β-blockers causes side-effects such as bronchoconstriction, vasoconstriction and hypoglycaemia.

    2008, C.J. van Boxtel, B. Santoso, I.R. Edwards, Drug Benefits and Risks: International Textbook of Clinical Pharmacology - Revised 2nd Edition, page 325
    2 more examples

    Carvedilol, an antihypertensive agent, has been in clinical use for several years. In addition to its function as a β-blocker, carvedilol has been shown to act as an antioxidant.

    2008 February 28, ironjustice, “Beta-Blocker”, in sci.med.cardiology (Usenet), retrieved 17 May 2022

    β-blocker inhibits adrenaline β activation release into blood from sympathetic nerves and adrenal gland. In the heart, β-receptor stimulation increases heart rate and cardiac contraction, and excitation conduction in atrioventricular node. Thus β-blocker therapy decreases heart rate, cardiac contraction and myocardial oxygen consumption.

    2016, Anne H. Child, Diagnosis and Management of Marfan Syndrome, page 51
Cite this entry
APA

β-blocker. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/%CE%B2-blocker

MLA

“β-blocker.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/%CE%B2-blocker. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “β-blocker,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/%CE%B2-blocker.

Source: β-blocker on Wiktionary, CC BY-SA 4.0.