antagonist
Also found in: Dictionary, Medical.(redirected from beta-adrenergic antagonist)
antagonist
1. any muscle that opposes the action of another
2. a drug that counteracts the effects of another drug
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
antagonist
[an′tag·ə‚nist] (biochemistry)
A molecule that bears sufficient structural similarity to a second molecule to compete with that molecule for binding sites on a third molecule.
(pharmacology)
A drug or other chemical substance capable of reducing the physiological activity of another chemical substance; refers especially to a drug that opposes the action of a drug or other chemical substance on the nervous system by combining with and blocking the nerve receptor.
(physiology)
A muscle that contracts with, and limits the action of, another muscle, called an agonist, with which it is paired.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
Patients had no history of esophageal varices, variceal bleeds, or treatment with
beta-adrenergic antagonists prior to their index date.
Beta-adrenergic antagonists, more commonly known as beta blockers, are identified easily by the name ending olol.
Copyright © 2003-2025 Farlex, Inc
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.