Noun
levoamphetamine (uncountable)
English Wikipedia has an article on:levoamphetamineWikipedia
A psychostimulant drug, the levorotatory stereoisomer of the amphetamine molecule.
Consequently, dextroamphetamine produces greater CNS stimulation than levoamphetamine, roughly three to four times more, but levoamphetamine has slightly stronger cardiovascular and peripheral effects. Source: Internet
Dextroamphetamine is a more potent agonist of TAAR1 than levoamphetamine. Source: Internet