Chapter 6
Drugs Acting on Autonomic Nervous System: Adrenergic Agonists and Antagonists Agents
Neurones adrénergiques : Neurotransmission
Postganglionic sympathetic fibers (except those supplying the sweat glands) releasing noradrenaline or norepinephrine are called noradrenergic or ...
Récepteurs adrénergiques (récepteurs adrénergiques) : classification
Adrenergic receptors, or adrenoceptors, respond to the autonomic neurotransmitter noradrenaline and other endogenous catecholamine agonists. They are ...
Récepteurs adrénergiques : ɑ Sous-type
Adrenoceptors are classified into α and ꞵ classes based on their potencies to catecholamine agonists. α-adrenoceptors show the following ...
Récepteurs adrénergiques : sous-type β
β-adrenoceptors have varied sensitivities towards adrenaline, noradrenaline, and isoprenaline. The order of agonist potency is as follows:
...
Agonistes adrénergiques : agents à action directe
Drugs that mimic the action of endogenous catecholamines like noradrenaline and adrenaline are called adrenergic agonists or sympathomimetics. Based on ...
Agonistes adrénergiques : agents à action indirecte
Indirect-acting adrenergic agonists potentiate the effects of endogenous catecholamines through different mechanisms without directly binding to ...
Agonistes adrénergiques : agents à action mixte
Mixed-action adrenergic agonists, like ephedrine and pseudoephedrine, directly and indirectly affect adrenergic receptors. These agents stimulate ...
Agonistes adrénergiques : chimie et relation structure-activité
Adrenergic agonists' structure-activity relationship (SAR) determines their selectivity and efficacy. These agonists comprise a phenylethylamine ...
Agonistes adrénergiques : classification thérapeutique
Adrenergic agonists can be classified based on their therapeutic uses and mechanisms of action. They serve various purposes in clinical applications.
...
Agonistes adrénergiques : utilisations thérapeutiques
Adrenergic agonists have diverse therapeutic uses across various medical conditions and emergencies.
Emergency and Intensive Care Unit (ICU) applications: ...
Antagonistes adrénergiques : chimie et classification des inhibiteurs des récepteurs ɑ
Adrenergic antagonists, or sympatholytics, inhibit adrenoceptor activation driven by catecholamines or agonists. Based on their adrenoceptor specificity, ...
Antagonistes adrénergiques : actions pharmacologiques des inhibiteurs des récepteurs ɑ
α-Adrenergic antagonists, known as α-blockers, exert their effects by inhibiting α-adrenoceptors, leading to specific physiological ...
Antagonistes adrénergiques : chimie et classification des antagonistes des récepteurs β
β-adrenergic antagonists, or β-blockers, modulate the sympathetic nervous system by targeting β-adrenoceptors and inhibiting ...
Antagonistes adrénergiques : actions pharmacologiques des antagonistes des récepteurs β
β-receptor blockers significantly impact the cardiovascular system by counteracting catecholamine-induced sympathetic responses. These medications ...
Antagonistes adrénergiques : bloqueurs des récepteurs ɑ et β
Third-generation β-blockers, such as labetalol and carvedilol, represent a significant advancement in managing cardiovascular conditions. Unlike ...
Médicaments affectant la synthèse des neurotransmetteurs
Drugs affecting neurotransmitter synthesis can impact the adrenergic neuron and the synthesis of neurotransmitters. For example, α-methyltyrosine and ...
Médicaments affectant la libération ou l’absorption de neurotransmetteurs
Certain drugs can affect how neurotransmitters called catecholamines, are released or taken back up in the adrenergic neuron. They can have different ...
Glaucome : Vue d’ensemble
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if ...
Glaucome à angle ouvert : Traitement
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This ...
Glaucome à angle fermé : Traitement
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup ...
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