Word.ws English Dictionary

naloxone

Syllables: na·lox·oneUK/nəˈlɒk.səʊn/US/nəˈlɑkˌsoʊn/

naloxone noun: an opioid inverse agonist used to counter the effects of an overdose on opioids (such as heroin or morphine).

naloxone: an opioid inverse agonist used to counter the effects of an overdose on opioids (such as heroin or...
Image: Fvasconcellos, Public domain, via Wikimedia Commons

Noun

naloxone (uncountable)

  1. An opioid inverse agonist used to counter the effects of an overdose on opioids (such as heroin or morphine).
    • Neffy uses the same spray device as Narcan, the naloxone nasal spray for opioid overdose, according to a spokesperson for its maker, ARS Pharmaceuticals.2024 August 9, Meg Tirrell, “First nasal spray epinephrine drug for emergency allergic reactions gets FDA approval”, in CNN

Origin of naloxone

From nal- (“opioid receptor antagonist/agonist”) + (hydr)ox(y) + -one.

Words formed from naloxone

Questions about naloxone

What does naloxone mean?
Naloxone means an opioid inverse agonist used to counter the effects of an overdose on opioids (such as heroin or morphine).
What part of speech is naloxone?
Naloxone is a noun.
How do you pronounce naloxone?
Naloxone is pronounced /nəˈlɒk.səʊn/ (UK).

Words near naloxone in the dictionary

  1. nalmexone
  2. nalorphine
  3. naloxazone
  4. naloxegol
  5. naloxonazine
  6. naloxone
  7. naloxones
  8. NALP
  9. NALSA
  10. nalta jute
  11. naltrexone

Source and license

Adapted from Wiktionary: naloxone (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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