Adderall is a stimulant medication currently approved by the FDA for treatment of Attention Deficit Hyperactivity Disorder (ADD or ADHD).  It is a mixture of four different amphetamine salts (Dexedrine)  - Dextroamphetamine Saccharate, Dextroamphetamine Sulfate, Amphetamine Aspartate,  and Amphetamine Sulfate.

Adderall is used works in the brain to improve attention and decrease the hyperactivity of patients with this disorder. It is also used to treat narcolepsy, a condition in which people fall asleep at inappropriate times, such as when driving or eating. The drug works by causing stimulation in the brain, making it easier to stay awake.

It is designed to produce an extended effect for six hours per dose.  Adderall was first developed in 1970  by Rexar and marketed as a diet pill under the name Obetrol. The medication was approved by the Food & Drug Administration for ADHD in 1996.  It is now used to treat Attention Deficit Hyperactivity Disorder (ADD or ADHD).