Adderall is a prescription stimulant containing amphetamine and dextroamphetamine. It is approved for the treatment of attention-deficit/hyperactivity disorder (ADHD) and narcolepsy. When prescribed appropriately, stimulant medication can help some people improve attention, reduce impulsivity, and manage ADHD symptoms. However, Adderall is a controlled prescription medication with important risks involving misuse, dependence, and overdose.