ivermectin

noun

iver·​mec·​tin ˌī-vər-ˈmek-tən How to pronounce ivermectin (audio)
: a drug mixture of two structurally similar semisynthetic lactones that is used in veterinary medicine as an anthelmintic, acaricide, and insecticide and in human medicine to treat onchocerciasis

Examples of ivermectin in a Sentence

Recent Examples on the Web That has become harder to do as time goes on, as Ladapo has moved from promoting useless treatments for COVID-19, such as the drugs hydroxychloroquine and ivermectin, to waging an ever-expanding fact-free campaign against the leading COVID vaccines. Michael Hiltzik, Los Angeles Times, 9 Jan. 2024 Studies have shown that two doses of ivermectin are effective at eliminating the disease in 98 percent of patients. David Cox, WIRED, 17 Jan. 2024 The channels also claim to sell the drug ivermectin, which the US Food and Drug Administration said should not be used to treat or prevent Covid-19 in 2021. Matt Burgess, WIRED, 18 Dec. 2023 Neither ivermectin nor fluvoxamine reduced the risk of long COVID. Lucy Tu, Scientific American, 22 June 2023 Rodgers eventually disclosed he hadn't been vaccinated, but had instead taken ivermectin, a drug typically used on livestock and pushed by podcaster Joe Rogan. David K. Li, NBC News, 11 Oct. 2023 But Karas espoused the use of ivermectin in public statements on his clinic’s social media page and sought to conduct his own research on the drug’s efficacy, according to the lawsuit. Daniel Wu, Washington Post, 10 Oct. 2023 This is a guy who has promoted nostrums that science has shown to be utterly useless against COVID, such as the anti-parasitic ivermectin and the anti-malarial drug hydroxychloroquine. Michael Hiltzik, Los Angeles Times, 15 Sep. 2023 The three judges hearing this appeal — two appointed by George W. Bush and one (the opinion’s author) by Donald Trump — found that the FDA had exceeded its authority in advising against the use of ivermectin against COVID. Michael Hiltzik, Los Angeles Times, 27 Sep. 2023 See More

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

Word History

Etymology

perhaps from di- + New Latin avermitilis (specific epithet of Streptomyces avermitilis, bacterium from which it is derived) + English -ect- (of unknown origin) + -in entry 1

First Known Use

1981, in the meaning defined above

Time Traveler
The first known use of ivermectin was in 1981

Dictionary Entries Near ivermectin

Cite this Entry

“Ivermectin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ivermectin. Accessed 25 Feb. 2024.

Medical Definition

ivermectin

noun
iver·​mec·​tin ˌī-vər-ˈmek-tən How to pronounce ivermectin (audio)
: a drug mixture of two structurally similar semisynthetic macrocyclic lactones that is a derivative of avermectin used in veterinary medicine as an anthelmintic, acaricide, and insecticide and in human medicine to treat onchocerciasis

More from Merriam-Webster on ivermectin

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