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naloxone Line breaks: na¦lox|one
Pronunciation: /nəˈlɒksəʊn/

Definition of naloxone in English:


[mass noun] Medicine
A synthetic drug, similar to morphine, which blocks opiate receptors in the nervous system.
Example sentences
  • Antagonist drugs such as naloxone can block the actions of opioid agonists.
  • Moreover, several studies reported that precipitating withdrawal in opiate-dependent animals by an injection of the opiate antagonist, naloxone, increases morphine self-administration.
  • Drugs such as the opioid antagonist naloxone and the benzodiazepine antagonist flumazenil may be used to counter the respiratory depressive effects of these drugs.


1960s: contraction of N-allylnoroxymorphone.

Definition of naloxone in:
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