Adderall is a prescription medication that contains a combination of amphetamine and dextroamphetamine. These are central nervous system stimulants that affect chemicals in the brain and nerves that contribute to hyperactivity and impulse control. It is commonly prescribed to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy. It is Primarily prescribed for ADHD to help increase attention and decrease impulsiveness and hyperactivity in patients. It is also used to treat narcolepsy to help stay awake during the day.