Adderall XR is a potent prescription medication that combines two generic drugs, amphetamine and dextroamphetamine. It is the most recommended drug across the USA to treat hyperactivity and impulse control. It belongs to the class of CNS stimulants that increase daytime wakefulness and concentration. Adderall comes in immediate-release form oral tablets and extended-release oral capsules. People usually buy Adderall XR to treat the symptoms of ADHD.