- any of certain compounds or medicines that neutralize or inhibit the effect of histamine in the body, used chiefly in the treatment of allergic disorders and colds.
Origin of antihistamine
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for antihistamine
“He gave me a blue pill, which he said was an antihistamine,” said Chelan.Two New Bill Cosby Accusers Come Forward: ‘We Challenge Mr. Cosby to End This Nightmare’
December 3, 2014
And, Zyrtec, an antihistamine, was the highest grossing nonfood of 2008, coming in at $316 million in sales.Blame Climate Change for Your Terrible Seasonal Allergies
May 14, 2014
Elvis also had the painkillers morphine and Demerol; tranquilizers Placidyl and Valium; and Chlorpheniramine, an antihistamine.Elvis's Doctor Speaks
August 14, 2009
- any drug that neutralizes the effects of histamine, used esp in the treatment of allergies
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for antihistamine
Online Etymology Dictionary, © 2010 Douglas Harper
- Any of several drugs used to counteract the physiological effects of histamine.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- Any of various drugs that relieve cold or allergy symptoms by blocking the action of histamine.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.