A competitive antagonist is a receptor antagonist that binds to a receptor but does not activate the receptor. The antagonist will compete with available agonist for receptor binding sites on the same receptor. Sufficient antagonist will displace the agonist from the binding sites, resulting in a lower frequency of receptor activation. Presence of...
(from the article `drug`) ...drugs), which inhibit the rapid destruction of acetylcholine at the neuromuscular junction and thus enhance its action on the muscle fibre. ...
An antimetabolite. ... (05 Mar 2000) ... 
Type: Term Definitions: 1. an antimetabolite.