Adderall (amphetamine and dextroamphetamine) is used to treat ADHD (attention deficit hyperactivity disorder) and narcolepsy (a sudden urge to sleep or sudden attacks of deep sleep). The two drugs found in Adderall helps a patients attention increase and decrease restlessness. Without Adderall, patients can become overactive, they can not concentrate, and they are easily distracted. Adderall is by prescription only and can NOT be found for purchase online as it is illegal. This type of medication is not refillable and can only be obtained from a doctor each time a patient needs it.