Levallorphan (INN, BAN; USAN levallorphan tartrate; brand names Lorfan, Naloxifan, and Naloxiphan) is an opioid modulator of the morphinan family used as an opioid analgesic and opioid antagonist/antidote.
The compounds of every Wikipedia article carrying a Chembox or a Drugbox, refreshed daily, with the values their infoboxes give. The pages need JavaScript; the API does not.