Nalorphine dinicotinate
Nalorphine dinicotinate, also known as N-allylnormorphine dinicotinate, dinicotinoylnalorphine, or niconalorphine, is a semisynthetic, mixed opioid agonist-antagonist which is described as a narcotic antagonist but may produce limited analgesia and sedation at higher doses in opioid naive patients. It is the 3,6-dinicotinate ester of nalorphine, and is therefore the nalorphine analogue of nicomorphine.
As nalorphine dinicotinate is only regulated at the Rx drug, it would be legal to possess with a valid prescription should a patient manage to acquire it.