Adderall
（重定向自Biphetamine）
Adderall is a combination drug containing salts of the two enantiomers of amphetamine, a psychostimulant of the phenethylamine class. Adderall is prescribed in the treatment of attention deficit hyperactivity disorder (ADHD) and narcolepsy. It is also used as an athletic performance and cognitive enhancer, and recreationally as an aphrodisiac and euphoriant. By salt content, the active ingredients of Adderall are 75% dextroamphetamine salts (the dextrorotary or 'right-handed' enantiomer) and 25% levoamphetamine salts (the levorotary or 'left-handed' enantiomer).