Adderall is a prescription medication that contains a combination of two stimulant drugs: amphetamine and dextroamphetamine. It belongs to the class of medications known as central nervous system stimulants. Adderall is primarily prescribed to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy. The exact mechanism of action of Adderall in treating ADHD is not fully understood, but it is believed to work by increasing the levels of certain neurotransmitters, such as dopamine and norepinephrine, in the brain. These neurotransmitters play a role in regulating attention, focus, and impulse control.