Adderall is a prescription medication that combines two stimulant drugs, amphetamine and dextroamphetamine, to treat Attention Deficit Hyperactivity Disorder (ADHD) and narcolepsy. By increasing the activity of certain neurotransmitters in the brain, Adderall helps improve focus, attention, and impulse control in individuals with ADHD. It is available in both immediate-release and extended-release forms, with the latter providing longer-lasting effects.