fu·​ro·​se·​mide | \ fyu̇-ˈrō-sə-ˌmīd How to pronounce furosemide (audio) \

Definition of furosemide

: a powerful diuretic C12H11ClN2O5S used especially to treat edema and hypertension

Examples of furosemide in a Sentence

Recent Examples on the Web Lasix, also known as furosemide, an anti-bleeding medication, is used by veterinarians in horse racing to prevent respiratory bleeding in horses that are running at high speed. Jason Gonzalez, The Courier-Journal, 3 May 2022 Some, especially the thiazide class (including HCTZ and chlorthalidone) and loop diuretics (such as furosemide), can cause potassium loss, while others, such as triamterene and spironolactone, raise the serum potassium level. Dr. Keith Roach, oregonlive, 25 Apr. 2022 Spironolactone and furosemide generally have minimal effects on blood sugar. Dr. Keith Roach, oregonlive, 14 Jan. 2022 Finally, very high doses (usually 80 mg or more) of furosemide can increase thyroxine levels of the blood. Dr. Keith Roach, oregonlive, 26 June 2021 Lasix, or furosemide, is used to prevent respiratory bleeding—blood entering a horse’s lungs during physical activity. Jim Chairusmi, WSJ, 1 May 2021 Kentucky began a partial elimination of race-day Lasix, the trade name for furosemide, with 2-year-old races in 2020. Jason Frakes, The Courier-Journal, 21 Apr. 2021 That time, Cano was caught using furosemide, a diuretic better known as Lasix, which is frequently used as a masking agent for performance-enhancing drugs. Tyler Kepner, New York Times, 18 Nov. 2020 Cano served an 80-game suspension in 2018, his final year with the Seattle Mariners, after testing positive for furosemide, a diuretic that can act as a masking agent when used in conjunction with performance-enhancing drugs. Bill Shaikin, Los Angeles Times, 18 Nov. 2020 See More

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

First Known Use of furosemide

1965, in the meaning defined above

History and Etymology for furosemide

furfural + -o- + sulf- + -emide, probably alteration of amide

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Time Traveler for furosemide

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The first known use of furosemide was in 1965

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Dictionary Entries Near furosemide

furor scribendi



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Last Updated

23 Jun 2022

Cite this Entry

“Furosemide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/furosemide. Accessed 12 Aug. 2022.

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More Definitions for furosemide


fu·​ro·​se·​mide | \ fyu̇-ˈrō-sə-ˌmīd How to pronounce furosemide (audio) \

Medical Definition of furosemide

: a powerful diuretic C12H11CIN2O5S used especially to treat edema

called also frusemide, fursemide

— see lasix


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