naltrexone

noun

nal·​trex·​one nal-ˈtrek-ˌsōn How to pronounce naltrexone (audio)
: a synthetic opiate antagonist C20H23NO4 administered in the form of its hydrochloride

Example Sentences

Recent Examples on the Web Current treatments for opioid use disorder include methadone and buprenorphine, which both activate brain receptors associated with opioids, and the medication naltrexone, which blocks the effects of opioids. Margaret Osborne, Smithsonian Magazine, 15 Dec. 2022 The other two — phentermine/topiramate, sold by Vivus as Qsymia, and bupropion/naltrexone, sold as Contrave by Currax Pharmaceuticals — are older therapies based on pill combinations. Julie Appleby, CBS News, 19 Oct. 2022 Bupropion-Naltrexone Also known as Contrave, this combination of two drugs — bupropion and naltrexone — works by increasing thermogenesis and suppressing appetite. Dallas News, 20 May 2022 And many providers who care for adolescents are uncomfortable or unfamiliar with the use of effective medications such as naltrexone or buprenorphine. Julia Michie Bruckner, Discover Magazine, 18 Aug. 2021 Colloquially known as methadone clinics, the programs can also dispense medications, including buprenorphine and naltrexone. Kerry Breen, CBS News, 22 Dec. 2022 The other two — phentermine/topiramate, sold by Vivus as Qsymia, and bupropion/naltrexone, sold as Contrave by Currax Pharmaceuticals — are older therapies based on pill combinations. Julie Appleby, CBS News, 19 Oct. 2022 More than 20 counties in Alabama have no opioid treatment program where patients can get access to methadone, buprenorphine or naltrexone, the three drugs approved by the FDA to treat addiction. al, 17 Nov. 2022 The other two — phentermine/topiramate, sold by Vivus as Qsymia, and bupropion/naltrexone, sold as Contrave by Currax Pharmaceuticals — are older therapies based on pill combinations. Julie Appleby, CBS News, 19 Oct. 2022 See More

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

Word History

Etymology

N-allyl + trex- (as in methotrexate) + -one

First Known Use

1973, in the meaning defined above

Time Traveler
The first known use of naltrexone was in 1973

Dictionary Entries Near naltrexone

Cite this Entry

“Naltrexone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/naltrexone. Accessed 4 Feb. 2023.

Medical Definition

naltrexone

noun
nal·​trex·​one nal-ˈtrek-ˌsōn How to pronounce naltrexone (audio)
: a synthetic opiate antagonist administered especially in the form of its hydrochloride C20H23NO4·HCl to maintain a drug-free state in detoxified opiate-dependent patients or to maintain abstinence in alcohol-dependent patients

More from Merriam-Webster on naltrexone

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