Adderall has a combination of dextroamphetamine and amphetamine. Both are stimulants in the central nervous system (CNS) that strike the nerves and brain chemicals that contribute to hyperactivity & influence impulse control. This drug helps treat ADHD (attention deficit hyperactivity disorder) and Narcolepsy. You can easily buy Adderall online. It can be beneficial for many purposes not enlisted in the medication guide.