cetirizine

noun
ce·​tir·​i·​zine | \ se-ˈtir-ə-ˌzēn How to pronounce cetirizine (audio) \
variants: or less commonly cetirizine hydrochloride

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.

Examples of cetirizine in a Sentence

Recent Examples on the Web The only real differences between pills like Allegra (fexofenadine), Zyrtec (cetirizine), and Claritin (loratadine) are how the body metabolizes them. Sara Chodosh, Popular Science, "Which allergy medication is the best? It’s complicated.," 19 Apr. 2020 Loratadine gets processed a lot by your liver, whereas cetirizine and fexofenadine don't as much. Sara Chodosh, Popular Science, "Which allergy medication is the best? It’s complicated.," 19 Apr. 2020 Two allergy medications — cetirizine, also known as Zyrtec, and loratadine, sold under the Claritin brand — cost about three-quarters less on Amazon than the drugstore chains’ house brands did in the store. Bloomberg, latimes.com, "Amazon is already undercutting prices on over-the-counter pills," 6 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cetirizine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of cetirizine

1987, in the meaning defined above

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The first known use of cetirizine was in 1987

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Cite this Entry

“Cetirizine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cetirizine. Accessed 16 Jan. 2021.

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More Definitions for cetirizine

cetirizine

noun
ce·​tir·​i·​zine | \ se-ˈtir-ə-ˌzēn How to pronounce cetirizine (audio) \

Medical Definition of cetirizine

: a long-acting, nonsedating, antihistamine drug that is taken orally in the form of its dihydrochloride C21H25ClN2O3·2HCl especially 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.

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