cetirizine

noun ce·tir·i·zine \ se-ˈtir-ə-ˌzēn \
variants: or less commonly cetirizine hydrochloride
Updated on: 28 Feb 2018

Definition of cetirizine

: a long-acting, nonsedating, antihistamine drug taken orally in the form of its hydrochloride C21H25ClN2O3·2HCl especially to treat allergic rhinitis and chronic hives
Note: Cetirizine is marketed under the trademark Zyrtec.

First Known Use of cetirizine

1987

in the meaning defined above

See Words from the same year
NEW! Time Traveler

Medical Dictionary

cetirizine

noun ce·tir·i·zine \ se-ˈtir-ə-ˌzēn \

medical Definition of cetirizine

: a long-acting, nonsedating, antihistamine drug taken orally in the form of its dihydrochloride C21H25ClN2O3·2HCl to treat allergic rhinitis and chronic hives
Note: Cetirizine is a derivative of piperazine and an H1 antagonist that binds competitively with histamine to H1 receptors on cell membranes. It is marketed under the trademark Zyrtec.

Seen and Heard

What made you want to look up cetirizine? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

habitually complaining

Get Word of the Day daily email!

Test Your Vocabulary

April 2018 Words of the Day Quiz

  • rain-on-rainbow-umbrella
  • Which is the best synonym of traduce?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!