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Agonist

/ˈæɡ.ə.nɪst/ noun Pharmacology
Board Reviewed
Reviewed: Aug 2026
Medical Definition

Drug or endogenous compound that binds to a specific cellular receptor and triggers a biological cellular response.

Detailed Medical Explanation

Agonist is a key clinical concept in Pharmacology.

Drug or endogenous compound that binds to a specific cellular receptor and triggers a biological cellular response.

Clinical Significance

In routine medical evaluation, understanding Agonist assists clinicians in differential diagnosis, laboratory interpretation, and patient management.

When to Consult a Physician

If you or a family member exhibit persistent symptoms or abnormal test results related to Agonist, consult a board-certified physician or specialist for evaluation.


Clinical Usage & Diagnostic Context

Example: Salbutamol is a Selective Beta-2 Agonist inducing bronchodilation in acute asthma.

Patient-Friendly Explanation

In simple terms, Agonist refers to: Drug or endogenous compound that binds to a specific cellular receptor and triggers a biological cellular response.

Professional Clinical Context

Clinically, Agonist is categorized under Pharmacology. Primary clinical manifestations include: Drug or endogenous compound that binds to a specific cellular receptor and triggers a biological cellular response.

Medical Disclaimer

This medical glossary entry is provided for health education and informational purposes only. It does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional regarding any clinical condition.

Terminology Metadata
  • Specialty Pharmacology
  • Part of Speech noun
  • Terminology Type medication
  • Etymology & Origin Greek: agonistes (contender)
  • Synonyms & Aliases Receptor activator, receptor agonist
Authoritative References

WHO / Medical Literature

Educational / Fair Use
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