Adderall 15 mg is a high-dose prescription medication primarily used to treat Attention Deficit Hyperactivity Disorder (ADHD) and narcolepsy. It contains a combination of amphetamine salts: specifically, amphetamine aspartate, amphetamine sulfate, dextroamphetamine saccharate, and dextroamphetamine sulfate. These central nervous system (CNS) stimulants work by increasing the levels of neurotransmitters such as dopamine and norepinephrine in the brain, which helps improve focus, attention, and impulse control.