Adderall is a compositional tablet broadly used for ADHD and narcolepsy. It works on our body by stopping the reabsorption of certain chemicals by their origin and increases the flow of the dopamine chemical which makes a person awake and attentive. This is the work mechanism of Adderall by which it treats ADHD. Adderall is a semi-synthetic Schedule II medicine and it is FDA approved for ADHD.