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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.
The α 1-adrenergic receptor has several general functions in common with the α 2-adrenergic receptor, but also has specific effects of its own. α 1-receptors primarily mediate smooth muscle contraction, but have important functions elsewhere as well. [3]
Sympathomimetic drugs (also known as adrenergic drugs and adrenergic amines) are stimulant compounds which mimic the effects of endogenous agonists of the sympathetic nervous system. Examples of sympathomimetic effects include increases in heart rate , force of cardiac contraction , and blood pressure . [ 1 ]
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 ...
Adrenergic receptor autoantibodies are autoantibodies (antibodies directed against a person's own protein) targeting adrenergic receptors. The mechanism of adrenergic receptors. Adrenaline or noradrenaline are receptor ligands to either α 1, α 2 or β-adrenergic receptors. α 1 couples to G q, which results in increased intracellular Ca 2 ...
This is a list of adrenergic drugs. These are pharmaceutical drugs , naturally occurring compounds and other chemicals that influence the function of the neurotransmitter epinephrine (adrenaline). Receptor ligands
Attention deficit hyperactivity disorder management options are evidence-based practices with established treatment efficacy for ADHD.Approaches that have been evaluated in the management of ADHD symptoms include FDA-approved pharmacologic treatment and other pharmaceutical agents, psychological or behavioral approaches, combined pharmacological and behavioral approaches, cognitive training ...
Phenylephrine is a selective α 1-adrenergic receptor agonist with minimal to no β-adrenergic receptor agonist activity or induction of norepinephrine release. [5] [8] [15] It causes constriction of both arteries and veins. [12] Phenylephrine was patented in 1933 [16] and came into medical use in 1938. [17] It is available as a generic medication.