What does "naltrexone" mean?

A synthetic drug, similar to morphine, which blocks opiate receptors in the nervous system and is used chiefly in the treatment of heroin addiction.

How do you pronounce "naltrexone"?

Pronounced //nælˈtɹɛk.səʊn//.

Common synonyms include: addiction therapy, antagonist therapy, mu receptor antagonist, naltrexone-associated, naltrexone-like, naltrexone-related.

/nælˈtɹɛk.səʊn/ noun

noun ·Rare ·Advanced level

Noun

1
A synthetic drug, similar to morphine, which blocks opiate receptors in the nervous system and is used chiefly in the treatment of heroin addiction. uncountable
2
an oral antagonist against the action of opiates wordnet

Probably from naloxone + Latin tres (“three”).