Levofenfluramine (INN), or (-)-3-trifluoromethyl-``N``-ethylamphetamine, also known as (-)-fenfluramine or (``R``)-fenfluramine, is a drug of the amphetamine family that, itself (i.e., in enantiopure form), was never marketed. It is the levorotatory enantiomer of fenfluramine, the racemic form of the compound, whereas the dextrorotatory en...