cip·​ro·​flox·​a·​cin ˌsi-prə-ˈfläk-sə-sən How to pronounce ciprofloxacin (audio)
: 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 She was prescribed the antibiotic ciprofloxacin, the painkiller oxycodone, and generic Zofran ondansetron, which prevents nausea and vomiting. Dominique Fluker, Essence, 29 Sep. 2023 In response, the FDA banned products made at four of the company’s manufacturing facilities in India from entering the U.S., including generic versions of gabapentin, which treats epilepsy and nerve pain, and the antibiotic ciprofloxacin. Geoffrey Joyce, The Conversation, 20 July 2023 This mineral can interfere with the absorption of tetracycline-type antibiotics such as doxycycline, ciprofloxacin (Cipro), levofloxacin (Levaquin) and norfloxacin (Noroxin). Joe and Teresa Graedon, oregonlive, 10 July 2023 When it is used, a short course of ciprofloxacin is normally prescribed for three days, not seven, for uncomplicated urine infections in women. Dr. Keith Roach, oregonlive, 13 Mar. 2023 When an infection is severe enough to require further treatment or hospitalization, there are five antibiotics doctors usually turn to: azithromycin, ciprofloxacin, ceftriaxone, trimethoprimsulfamethoxazole, and ampicillin. Catherine Garcia, The Week, 16 Mar. 2023 The sample showed signs of resistance, so the state sent it to the CDC for more advanced testing, which identified the worrisome genetic pattern: the bacteria were resistant to ciprofloxacin, penicillin, and tetracycline and had reduced susceptibility to ceftriaxone, cefixime, and azithromycin. Globe Staff,, 19 Jan. 2023 For ciprofloxacin, an antibiotic largely abandoned as a gonorrhea treatment due to resistance, all 70 reporting countries found resistance. Beth Mole, Ars Technica, 20 Jan. 2023 An appropriate counter-play by the Apothecary Healer would be to play ciprofloxacin or ticarcillan, two antibiotics that have action against P. aeruginosa. Allison Bond, Discover Magazine, 15 May 2010 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ciprofloxacin.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


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

First Known Use

1983, in the meaning defined above

Time Traveler
The first known use of ciprofloxacin was in 1983

Dictionary Entries Near ciprofloxacin

Cite this Entry

“Ciprofloxacin.” Dictionary, Merriam-Webster, Accessed 10 Dec. 2023.

Medical Definition


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