cip·​ro·​flox·​a·​cin | \ ˌsi-prə-ˈfläk-sə-sən How to pronounce ciprofloxacin (audio) , -prō- \

Definition of ciprofloxacin

: a broad-spectrum fluoroquinolone antibiotic C17H18FN3O3 that is often administered in the form of its hydrochloride C17H18FN3O3·HCl and is effective especially against gram-negative bacteria

Examples of ciprofloxacin in a Sentence

Recent Examples on the Web Even those who have been vaccinated against bacterial meningitis should still get antibiotic treatment, such as ciprofloxacin and rifampin. Kristen Jordan Shamus, Detroit Free Press, 27 Jan. 2022 Antibiotics are used to treat donovanosis, including azithromycin, doxycycline, ciprofloxacin, erythromycin and trimethoprim-sulfamethoxazole. Scott Gleeson, USA TODAY, 26 Oct. 2021 The report found more modest drops or figures in line with expectations for the remaining antibiotics, except ciprofloxacin, which jumped 12-14% in the last half of the year. Robert Hart, Forbes, 22 Sep. 2021 Antibiotics such as ciprofloxacin can - but don't always - kill it. Raquel Rutledge, Milwaukee Journal Sentinel, 29 Nov. 2010 All of them were resistant to at least seven antibiotics (azithromycin, ciprofloxacin, clindamycin, erythromycin, nalidixic acid, telithromycin, and tetracycline). Beth Mole, Ars Technica, 21 Sep. 2018 During the anthrax scare in 2001, the U.S government successfully pushed Bayer, the manufacturer of the anti-anthrax treatment ciprofloxacin, to drop its drug price. Varoon Mathur, STAT, 2 Apr. 2020 Her doctor prescribed a third drug, ciprofloxacin, the last of the three major front-line medicines, and cultured her urine. Matt Richtel,, 13 July 2019 But while gonorrhea has been evolving ways to stop ciprofloxacin from getting in the way of topoisomerase, those strategies don’t work on the new drug. Cathleen O'grady, Ars Technica, 15 Nov. 2018 See More

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

First Known Use of ciprofloxacin

1983, in the meaning defined above

History and Etymology for ciprofloxacin

probably from International Scientific Vocabulary ci- (alteration of cycl-) + propyl + fluor- + ox- + az- + -mycin

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The first known use of ciprofloxacin was in 1983

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Cite this Entry

“Ciprofloxacin.” Dictionary, Merriam-Webster, Accessed 29 May. 2022.

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More Definitions for ciprofloxacin


cip·​ro·​flox·​a·​cin | \ ˌsip-rə-ˈfläk-sə-sən, -rō- How to pronounce ciprofloxacin (audio) \

Medical Definition of ciprofloxacin

: a fluoroquinolone C17H18FN3O3 that is often administered in the form of its hydrochloride C17H18FN3O3·HCl and is effective especially against gram-negative bacteria — see cipro

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