Antrafenine (Stakane) is a non-narcotic analgesic, shows long duration of action, and excellent tolerance in pharmacological and toxicological studies[1][2].
[1]. Manoury PM, et al. Synthesis and analgesic activities of some (4-substituted phenyl-1-piperazinyl)alkyl 2-aminobenzoates and 2-aminonicotinates. J Med Chem. 1979;22(5):554-559.
















