Wiktionary
oxaprotiline
n. A psychoactive drug and research chemical of the tetracyclic chemical class.
Wikipedia
Oxaprotiline
Oxaprotiline (C 49-802 BDA), also known as hydroxymaprotiline, is a norepinephrine reuptake inhibitor of the tetracyclic antidepressant family that is related to maprotiline. Though investigated as an antidepressant, it was never marketed.