单词	naloxone
释义	naloxone /nəˈlɒksəʊn / noun [mass noun] Medicine A synthetic drug, similar to morphine, which blocks opiate receptors in the nervous system.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. Origin 1960s: contraction of N-allylnoroxymorphone.
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