The molecule is the (S,S)-tartaric acid salt of butorphanol. It is used for relief or moderate to severe pain. It has a role as a kappa-opioid receptor agonist, a mu-opioid receptor agonist and an opioid analgesic. It is a morphinane alkaloid and a tartrate salt. It contains a butorphanol.
(1S,9R,10S)-17-(cyclobutylmethyl)-17-azatetracyclo[7.5.3.01,10.02,7]heptadeca-2(7),3,5-triene-4,10-diol;(2S,3S)-2,3-dihydroxybutanedioic acid