claim: Levoamphetamine is a CNS stimulant.
evidence: Levoamphetamine , also known as levamfetamine -LRB- INN -RRB- , -LRB- R -RRB- - amphetamine , - amphetamine , and L-amphetamine , is a central nervous system -LRB- CNS -RRB- stimulant known to increase wakefulness and concentration in association with decreased appetite and fatigue .. INN. International Nonproprietary Name. central nervous system. central nervous system. stimulant. stimulant. wakefulness. wakefulness. concentration. attention. appetite. appetite. fatigue. Fatigue ( medical ). amphetamine. amphetamine. Pharmaceuticals that contain levoamphetamine are currently indicated and prescribed for the treatment of attention deficit hyperactivity disorder -LRB- ADHD -RRB- , obesity , and narcolepsy in some countries .. attention deficit hyperactivity disorder. attention deficit hyperactivity disorder. obesity. obesity. narcolepsy. narcolepsy. Levoamphetamine is the levorotatory stereoisomer of the amphetamine molecule .. levorotatory. Dextrorotation and levorotation. stereoisomer. stereoisomer. amphetamine. amphetamine