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Alpha-adrenergic agonists are a class of sympathomimetic agents that selectively stimulates alpha adrenergic receptors. The alpha-adrenergic receptor has two subclasses α 1 and α 2. Alpha 2 receptors are associated with sympatholytic properties. Alpha-adrenergic agonists have the opposite function of alpha blockers.
Download as PDF; Printable version; In other projects ... Epinephrine. This is a list of adrenergic drugs. ... antagonize α 2-adrenergic receptors as well.
An adrenergic agonist is a drug that stimulates a response from the adrenergic receptors. The five main categories of adrenergic receptors are: α 1, α 2, β 1, β 2, and β 3, although there are more subtypes, and agonists vary in specificity between these receptors, and may be classified respectively. However, there are also other mechanisms ...
The alpha-2 (α 2) adrenergic receptor (or adrenoceptor) is a G protein-coupled receptor (GPCR) associated with the G i heterotrimeric G-protein. It consists of three highly homologous subtypes, including α 2A-, α 2B-, and α 2C-adrenergic. Some species other than humans express a fourth α 2D-adrenergic receptor as well. [1]
Xylazine is a structural analog of clonidine and an α 2-adrenergic receptor agonist, [1] sold under many trade names worldwide, most notably the Bayer brand name Rompun, [2] as well as Anased, Sedazine and Chanazine.
The mechanisms of sympathomimetic drugs can be direct-acting (direct interaction between drug and receptor), such as α-adrenergic agonists, β-adrenergic agonists, and dopaminergic agonists; or indirect-acting (interaction not between drug and receptor), such as MAOIs, COMT inhibitors, release stimulants, and reuptake inhibitors that increase the levels of endogenous catecholamines.
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Alpha-2 adrenergic agonists such as clonidine are traditionally used to treat hypertension via inhibition of norepinephrine release. [17] Central alpha-2 adrenergic activation in the locus ceruleus and spinal cord induce sedation and pain modulation respectively. [17] Clonidine has been shown to have some efficacy when treating both acute and ...