Adderall is a prescription stimulant medication containing amphetamine salts, commonly prescribed to treat ADHD and narcolepsy by improving focus, attention, and impulse control. Because it can increase heart rate and blood pressure and carries risks of misuse and dependence, Adderall is classified in the United States as a Schedule II controlled substance and requires a valid prescription from a licensed healthcare provider. Legitimate online pharmacies may offer overnight delivery only after prescription verification and pharmacist review. Websites claiming no prescription or guaranteed delivery without verification should be avoided for safety and legality.