antagonist

https://doi.org/10.1351/goldbook.A00376
  1. Substance that reverses or reduces the effect induced by an @A00186@.
  2. Substance that attaches to and blocks cell receptors that normally bind naturally occurring substances.
See also:
agonist
Source:
PAC, 1993, 65, 2003. (Glossary for chemists of terms used in toxicology (IUPAC Recommendations 1993)) on page 2014 [Terms] [Paper]
Cite as: IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: October 7, 2008