In essence, it is a mixture of amphetamine based salts which are thought to stop the reuptake of norepinephrine and dopamine back into the neurons. In the Adderall XR form, the composition of the drug includes a three to one ratio of d-amphetamines and l-amphetamines respectively.s stated above, Adderall is a prescription medication used to treat many forms of ADHD (increased or more difficulty focusing, controlling actions, and remaining still or quiet than other people who are the same age) and narcolepsy (a sleep disorder that causes excessive daytime sleepiness and sudden attacks of sleep).