Nalorphine dinicotinate

Nalorphine dinicotinate (trade name Nimelan), also known as N-allylnormorphine dinicotinate, dinicotinoylnalorphine, or niconalorphine, is a semisynthetic, mixed opioid agonist-antagonist which is described as a narcotic antagonist. It is the 3,6-dinicotinate ester of nalorphine, and is therefore the nalorphine analogue of nicomorphine (which is the 3,6-dinicotinate ester of morphine).