Adderall is an FDA-approved stimulant class medication; that is a combination of amphetamine and dextroamphetamine. Amphetamine and dextroamphetamine act on the central nervous system and impact brain and nerve control impulses. Adderall is used to treat various sleeping disorders or narcolepsy and attention deficit hyperactivity disorder [ADHD]. Adderall 30 mg is a good dose of Adderall medication; it is used to prevent ADHD system also has the capacity to treat chronic insomnia.