Adderall: A Complete Guide to ADHD Treatment and Online Prescriptions. What Is Adderall? Adderall is a prescription medication that contains a combination of amphetamine and dextroamphetamine. It is commonly prescribed to treat Attention-Deficit/Hyperactivity Disorder (ADHD) and narcolepsy. For many people with ADHD, Adderall can improve attention, concentration, organization, and impulse control.