Get 10% Discount Apply Coupon Code “USA10” Amphetamine and dextroamphetamine are the two active components in the pharmaceutical drug Adderall. These drugs, known as stimulants, alter brain and nerve chemicals that are linked to hyperactivity and poor impulse control. The main reason Adderall is administered to adults and children with ADHD is to treat attention deficit hyperactivity disorder. Less frequently, it is also used to treat narcolepsy, a sleep condition marked by excessive daytime sleepiness.