Tags: Drug.
L-Norpseudoephedrine or (-)-norpseudoephedrine also referable to as (-)-threo-β-hydroxyamphetamine is a psychostimulant drug of the amphetamine family. It is one of the four optical isomers of phenylpropanolamine the other three being cathine ((+)-norpseudoephedrine) (-)-norephedrine and (+)-norephedrine; as well as one of the two enantiomers of norpseudoephedrine (the other of course being cathine).
