Before revision: Antagonists An antagonist is a chemical that acts within the body to reduce the physiological activity of another chemical substance ( as an opiate); especially one that opposes the action on the nervous system of a drug or a substance occurring naturally in the body by combining with and blocking its nervous receptor.
After revision: suchAntagonists An antagonist is a chemical that acts within the body to reduce the physiological activity of another chemical substance ( as an opiate); especially one that opposes the action on the nervous system of a drug or a substance occurring naturally in the body by combining with and blocking its nervous receptor.