Adderall is a prescription medication that contains a combination of amphetamine and dextroamphetamine. These substances are central nervous system stimulants that affect chemicals in the brain and nerves contributing to hyperactivity and impulse control. It is a prescription medication that is commonly used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy. It is a central nervous system stimulant that contains a combination of amphetamine and dextroamphetamine. These substances work by increasing the levels of neurotransmitters in the brain, such as dopamine and norepinephrine, which help improve attention, focus, and impulse control.