antihistamine

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 use in medicine is in the control of allergies such as hay fever and hives. Some antihistamines are also useful as sedatives and for the prevention of motion sickness; others, such as fexofenadine (Allegra) and loratadine (Claritin) are nonsedating.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

More on antihistamine from Fact Monster:

  • Carl Djerassi - Carl Djerassi Born: 1923 Birthplace: Vienna, Austria Oral contraceptives—Along with ...
  • histamine - histamine histamine , organic compound derived in the body from the amino acid histidine by the ...
  • sympathomimetic drug - sympathomimetic drug sympathomimetic drug , any of a group of substances whose actions resemble the ...
  • Carl Djerassi - Djerassi, Carl Djerassi, Carl , 1929–, American organic chemist and educator, b. Vienna, ...
  • Daniele Bovet - Bovet, Daniele Bovet, Daniele , 1907–92, Italian pharmacologist, b. Switzerland, D.Sc. Univ. ...

See more Encyclopedia articles on: Biochemistry