Adrenergic agonist

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Adrenergic Agonist

Adrenergic agonist (pronunciation: ad-ren-er-jik ag-o-nist) is a type of pharmacological agent that stimulates the adrenergic receptor in the nervous system.

Etymology

The term "adrenergic agonist" is derived from the Greek words "adrenes" meaning 'near the kidney' and "ergon" meaning 'work'. The term "agonist" comes from the Greek "agonistes" meaning 'competitor, contender, rival'.

Definition

An adrenergic agonist is a drug or other substance which has effects similar to, or the same as, those of epinephrine or norepinephrine. They work by binding to and activating one or more of the adrenergic receptors.

Types of Adrenergic Agonists

There are several types of adrenergic agonists, including:

  • Alpha-adrenergic agonist: These drugs stimulate the alpha-adrenergic receptors, causing effects such as vasoconstriction and increased blood pressure.
  • Beta-adrenergic agonist: These drugs stimulate the beta-adrenergic receptors, causing effects such as bronchodilation and increased heart rate.

Related Terms

  • Adrenergic antagonist: A drug that blocks the actions of the adrenergic agonists.
  • Sympathomimetic drugs: A class of drugs that mimic the effects of the sympathetic nervous system, including adrenergic agonists.

See Also

External links

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