: a diuretic drug C4H6N4O3S2 used especially in the treatment of edema associated with congestive heart failure and of glaucoma and in the prevention and treatment of altitude sickness

Examples of acetazolamide in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The first-line preventive drug for acute mountain sickness, or AMS, is a drug called acetazolamide, sold under the trade name Diamox. Alex Hutchinson, Outside, 23 Dec. 2025 Just under half the HAPE climbers reported taking acetazolamide, a diuretic known to climbers under the brand name Diamox that helps ward off AMS. Alex Hutchinson, Outside Online, 12 Mar. 2025 It is recommended only when acetazolamide is not effective or cannot be taken. Brian Strickland, Discover Magazine, 9 Mar. 2024 If started two days prior to going up to a high elevation, acetazolamide can prevent symptoms of acute illness by speeding up the acclimatization process. Brian Strickland, Discover Magazine, 9 Mar. 2024 You may be given acetazolamide (Diamox) to counteract tvhe increase in pressure. Amanda MacMillan, Health, 31 Aug. 2023 For instance, a medication called acetazolamide may be more effective than other types of migraine treatment in preventing attacks in people who have a CACNA1A-variant form of FHM5. Madeleine Streets, SELF, 13 June 2022 Other potential treatment options include the medication acetazolamide, which is used to treat glaucoma — a condition where the eyes experience an unhealthy increase in internal pressure. Doug Adler, Discover Magazine, 14 Apr. 2020

Word History

Etymology

acet- + azole + amide

First Known Use

1954, in the meaning defined above

Time Traveler
The first known use of acetazolamide was in 1954

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Cite this Entry

“Acetazolamide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acetazolamide. Accessed 2 Aug. 2026.

Medical Definition

: a diuretic drug C4H6N4O3S2 used especially to treat glaucoma, control epileptic seizures, prevent or treat altitude sickness, and treat edema associated with congestive heart failure
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