Doctors prescribe Adderall XR 30 mg as a medicine for the initial stage of the attention deficiency hyperactivity disorder (ADHD). It can be reduced to a large extent if treated at the initial level.It is a direct stimulant to the central nervous system that helps a person in improving focus, concentration power and reducing impulsivity by increasing dopamine and norepinephrine levels in the brain.This is the best medicine for regaining mental focus and concentration in doing a particular task.