antagonist

(redirected from leukotriene-receptor antagonist)
Also found in: Dictionary, Thesaurus, Medical.
Related to leukotriene-receptor antagonist: leukotriene modifiers

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 ?
Montelukast (Singulair[R]) (see Table 2) is also a leukotriene-receptor antagonist. It is used for the long-term management of children with asthma over the age of 2 years.
Montelukast, a leukotriene-receptor antagonist, for the treatment of mild asthma and exercise-induced bronchoconstriction.
Onset of action of the leukotriene-receptor antagonist, zafirlukast (Accolate(R)), in patients with asthma.