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Adrenergic Receptor


The adrenergic receptors (or adrenoceptors) are a class of G protein-coupled receptors that are targets of the catecholamines, especially norepinephrine (noradrenaline) and epinephrine (adrenaline). Epinephrine (adrenaline) reacts with both α- and β-adrenoreceptors, causing vasoconstriction and vasodilation, respectively. High levels of circulating epinephrine cause vasoconstriction. At lower levels of circulating epinephrine, β-adrenoreceptor stimulation dominates, producing vasodilation followed by decrease of peripheral vascular resistance.
Many cells possess these receptors, and the binding of a catecholamine to the receptor will generally stimulate the sympathetic nervous system. The sympathetic nervous system is responsible for the fight-or-flight response, which includes dilating the pupils, increasing heart rate, mobilizing energy, and diverting blood flow from non-essential organs to skeletal muscle. 
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  • Xylometazoline HCl EY2862

    Xylometazoline is an α-adrenoceptor agonist commonly used as nasal decongestant, exhibits highest potency at α2B-adrenoceptor subtype with EC50 of 99 μM. Phase 4.

    More
  • Brexpiprazole EY2722

    Brexpiprazole是D2多巴胺部分激动剂。

    More
  • Atipamezole EY2730

    Atipamezole is an alpha-adrenoceptor antagonist with high affinity and selectivity for the alpha 2-receptor.

    More
  • Labetalol HCl EY2589

    Labetalol HCl is a dual antagonist for both selective alpha1-adrenergic and nonselective beta-adrenergic receptors, used in the treatment of high blood pressure.

    More
  • Carteolol HCl EY2584

    Carteolol HCl is a β-adrenoceptor antagonist, used for the treatment of glaucoma.

    More
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