<unk>  is the levorotatory (L-enantiomer) form of methamphetamine.<unk>  is a sympathomimetic vasoconstrictor that is the active ingredient in some over-the-counter (OTC) nasal decongestant inhalers in the United States.
Levomethamphetamine
Propylamphetamine
Dextroamphetamine
Levoamphetamine
Butriptyline
Triazolam
Perphenazine
Methoxyphenamine