From The School of Biomedical Sciences Wiki
An antagonist is a molecule that inhibits their target so that it can no longer be activated by an agonist. A competitive antagonist is one that blocks the same binding site as the agonist on the target molecule.
- ↑ Golan, D., Tashjian, A. and Armstrong, E. (2012) "Principles of Pharmacology, The Pathophysiologic Basis of Drug Therapy", 3rd Edition, Philadelphia: Lippincott Williams and Wilkins. Page 7.