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agonist

agonist

2 7.9
A drug or chemical that binds to a cell receptor and causes a response
  • noun
  • /ˈæɡənɪst/
  • Specialized
translation icon : agonista
  • Ramelteon is a melatonin receptor agonist used for the treatment of insomnia, particularly delayed sleep onset.
  • receptor agonist
  • beta-agonist
  • adrenergic agonists

It's they act as agonists at that receptor.

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Examples

  • Her current medication consists of an inhaled corticosteroid/long-acting beta2 agonist inhaler taken twice daily and ramipril 5 mg taken once daily.

    Academic text (2015)
  • According to the medical literature, about 3.5 percent of patients who are treated with dopamine agonists report impulse-control problems.

  • Sumatriptan is a novel selective agonist that blocks these mechanisms.

    Academic text (2011)
  • The study was measured by perception of dyspnea and frequency of beta-2 agonist consumption.

    Academic text (2007)
  • Ramelteon is a melatonin receptor agonist used for the treatment of insomnia, particularly delayed sleep onset.

    Academic text (2015)
  • Pilocarpine is a naturally occurring alkaloid with cholinergic properties that acts as an agonist at muscarinic receptors.

    Academic text (1999)
  • For his COPD, he was taking a licensed combination inhaler and a short-acting beta2 agonist for occasional symptom relief.

    Academic text (2012)
  • Growth signals typically come in the form of chemical agonists outside of cells that bind to protein receptors on cells.

Compounds

6.2

An eye drop with medicine that lowers eye pressure by reducing the fluid inside the eye and helping it drain

How Blocking

antagonist
  • Specialized
4 7.3
agonist
  • Specialized
2 7.9

Surface Forms

agonist singular
agonists plural

Morphology

agonist = agon + ist

Formed from the combining form 'agon-' (contest/struggle) + the agentive suffix '-ist'; because 'agon' is not a productive standalone English word and the pharmacological sense is specialized, the relation is opaque for average learners.

Etymology

Agonist comes from the Greek root agon meaning 'contest' or 'actor', the same root in protagonist and antagonist. In medicine, an agonist is a substance that 'acts' at a receptor to start a response, so it plays the active role like a main player in a contest.