Breadcrumb Home > Thesaurus > A Synonyms of antihistamine Find synonyms for: Noun 1. antihistamine, medicine, medication, medicament, medicinal drug usage: a medicine used to treat allergies and hypersensitive reactions and colds; works by counteracting the effects of histamine on a receptor site WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of antihistamine (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: variegate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language