The molecule is a morphinane-like compound that is a semi-synthetic opioid synthesized from codeine. It has a role as a mu-opioid receptor agonist, an opioid analgesic and an antitussive. It is an organic heteropentacyclic compound and a morphinane-like compound. It derives from a hydride of a morphinan.
(4R,4aR,7aR,12bS)-9-methoxy-3-methyl-1,2,4,4a,5,6,7a,13-octahydro-4,12-methanobenzofuro[3,2-e]isoquinolin-7-one