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antihistamine

(Encyclopedia)antihistamine ănˌtĭhĭsˈtəmēn [key], any one of a group of compounds having various chemical structures and characterized by the ability to antagonize the effects of histamine. Their principal u...

Djerassi, Carl

(Encyclopedia)Djerassi, Carl jərăsˈē [key], 1929–2015, American organic chemist and educator, b. Vienna, Austria. He received his Ph.D. from the Univ. of Wisconsin (1945) and taught at Stanford Univ. from 195...

histamine

(Encyclopedia)histamine hĭsˈtəmēnˌ [key], organic compound derived in the body from the amino acid histidine by the removal of a carboxyl group (COOH). Although found in many plant and animal tissues, histamin...

allergy

(Encyclopedia)allergy, hypersensitive reaction of the body tissues of certain individuals to certain substances that, in similar amounts and circumstances, are innocuous to other persons. Allergens, or allergy-caus...

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