Flumexadol is a serotonin receptor modulator which was described and researched as a non-opioid analgesic but was never marketed. It might be employable as an anorectic in addition to analgesic. Though flumexadol itself has never been approved for medical use, oxaflozane is a prodrug of the compound that was formerly used clinically in France as an antidepressant and anxiolytic agent.