Adderall (generic: amphetamine/dextroamphetamine) is a prescription medicine used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy. Adderall is a central nervous system stimulant. It contains two medications, amphetamine and dextroamphetamine. They are thought to work by changing the amounts of natural substances in the brain.
Adderall comes in tablet form and is usually taken twice daily. It is also available as an extended-release capsule (Adderall XR) that is usually taken by mouth once in the morning.
Common side effects of Adderall include headache, decreased appetite, trouble sleeping, and nervousness.