" /> Alpha-Adrenergic Antagonist - CISMeF





Preferred Label : Alpha-Adrenergic Antagonist;

NCIt synonyms : Alpha Blocker; Alpha-adrenergic Blocking Agent;

NCIt related terms : alpha-blocker;

NCIt definition : Natural or synthetic Alpha-adrenergic Blocking Agents selectively bind to adrenergic receptors, or compete with natural adrenergic mediators, and inactivate alpha adrenergic receptors of the sympathetic nervous system. These agents block the action of natural sympathomimetic neurotransmitters (norepinephrine and related substances), and can initiate physiological responses such as vasodilation, bradycardia, and pupil contraction.;

Alternative definition : NCI-GLOSS: A substance that relaxes muscle tissue in blood vessels and in the prostate gland, which improves the flow of urine and blood. Alpha-blockers are used to treat the symptoms of many conditions, such as benign prostatic hyperplasia (BPH), high blood pressure, and some blood circulation problems.;

ChEBI ID : CHEBI:37890;

Codes from synonyms : CDR0000651174; CDR0000651173;

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28/07/2025


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