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Visual definition of an antagonist, where it compared to agonists and reverse agonists. An adrenergic antagonist is a drug that inhibits the function of adrenergic receptors.
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
Adrenergic blocking agents are a class of drugs that exhibit its pharmacological action through inhibiting the action of the sympathetic nervous system [1] in the body. The sympathetic nervous system(SNS) is an autonomic nervous system that we cannot control by will.
Each agent has its own off-label uses, some examples include Tamsulosin for urinary disorders, Prazosin for post-traumatic stress disorder-related nightmares and Raynaud phenomenon, Phentolamine for hypertensive crisis and extravasation of vasopressors, and Phenoxybenzamine for neurogenic bladder and prostate obstruction.
Alpha blockers, also known as α-blockers or α-adrenoreceptor antagonists, are a class of pharmacological agents that act as antagonists on α-adrenergic receptors (α-adrenoceptors). [2] Historically, alpha-blockers were used as a tool for pharmacologic research to develop a greater understanding of the autonomic nervous system.
Antiadrenergic agents inhibit the signals of epinephrine and norepinephrine.They are primarily postsynaptic adrenergic receptor antagonists (alpha and beta adrenergic receptor antagonists, or "blockers"), inhibiting the downstream cellular signaling pathways of adrenergic receptors.
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.
Following is a list of antipsychotics, sorted by class. Antipsychotics. Antipsychotics by class Generic name Brand names Chemical class ATC code