Biologically Active Substance
histamine
his·ta·mine [ his-tuh-meen, -min ]
Brand Names:
ActivOn Arthritis; Alo
May Treat:
Rhinitis, Allergic, Seasonal;
Urticaria
More Information:
Definitions related to histamine:
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A substance released by the immune system when it is exposed to an allergen. Histamines cause many allergy symptoms.Harvard Dictionary of Health TermsHarvard Medical Publishing, 2011
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A substance that has many effects in the body. It is released from some types of white blood cells during allergic reactions. It causes small blood vessels to dilate (widen) and become leaky, which can cause tissues to swell. It also causes smooth muscles to contract, gastric acid to be made, and the heart rate to increase. Histamine is used in tests for allergies, asthma, and gastric acid secretion. It is a type of neurotransmitter.NCI Dictionary of Cancer TermsU.S. National Cancer Institute, 2021
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An amine derived by enzymatic decarboxylation of HISTIDINE. It is a powerful stimulant of gastric secretion, a constrictor of bronchial smooth muscle, a vasodilator, and also a centrally acting neurotransmitter.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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Depressor amine derived by enzymatic decarboxylation of histidine, present in the secretory granules of mast cells; a powerful stimulant of gastric secretion, a constrictor of bronchial smooth muscle, a vasodilator, and also a centrally acting neurotransmitter.CRISP ThesaurusNational Institutes of Health, 2006
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