phenylbutazone

noun

phen·​yl·​bu·​ta·​zone ˌfe-nᵊl-ˈbyü-tə-ˌzōn How to pronounce phenylbutazone (audio)
: a drug C19H20N2O2 that is used for its analgesic and anti-inflammatory properties especially in the treatment of arthritis, gout, and bursitis

Examples of phenylbutazone 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.
Koufax was also given an anti-inflammatory called phenylbutazone alka, which was intended for horses and is no longer approved for human use. Houston Mitchell, Los Angeles Times, 17 Oct. 2023 According to a stewards ruling posted to the Kentucky Horse Racing Commission website, a blood test of Warrior's Charge, which finished second in the Stephen F. Foster on June 26, 2021, at Churchill Downs, contained phenylbutazone at a level of 2.51 micrograms per milliliter in blood. Jon Hale, The Courier-Journal, 17 May 2022 If the test is confirmed, Churchill Downs said in a statement Sunday that Medina Spirit will be stripped of the win — something that hasn’t happened since 1968 when Dancer’s Image was disqualified three days after the race after phenylbutazone was detected in his system. Dan Wolken, USA TODAY, 9 May 2021 Warrior’s Charge’s phenylbutazone positive was also Cox’s second class C violation in a 365-day span, but this time the stewards were not as lenient. Jon Hale, The Courier-Journal, 17 May 2022 His last previous case was another phenylbutazone positive at Churchill Downs in October 2020. Jon Hale, The Courier-Journal, 17 May 2022 But after the discovery of phenylbutazone in a post-race urinalysis of Dancer’s Image, Forward Pass was declared the winner. Jason Frakes, The Courier-Journal, 16 July 2021 In 1968, Dancer’s Image was disqualified for having phenylbutazone, an anti-inflammatory, in his system. John Cherwa, Los Angeles Times, 2 June 2021 The Derby’s previous drug disqualification took place in 1968, when Dancer’s Image finished first but tested positive for phenylbutazone. Tim Sullivan, The Courier-Journal, 11 May 2021

Word History

Etymology

phenyl + butyric acid + pyrazalone (C3H4N2O)

First Known Use

1952, in the meaning defined above

Time Traveler
The first known use of phenylbutazone was in 1952

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Cite this Entry

“Phenylbutazone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phenylbutazone. Accessed 3 Mar. 2025.

Medical Definition

phenylbutazone

noun
phen·​yl·​bu·​ta·​zone ˌfen-ᵊl-ˈbyüt-ə-ˌzōn How to pronounce phenylbutazone (audio)
: a drug C19H20N2O2 that is used for its analgesic and anti-inflammatory properties especially in the treatment of arthritis, gout, and bursitis see butazolidin

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