Buy Adderall 20mg online is a prescription medication that combines amphetamine and dextroamphetamine, used to treat ADHD (Attention Deficit Hyperactivity Disorder) and narcolepsy. It works by increasing dopamine and norepinephrine levels in the brain to improve focus, attention, and impulse control. Due to its stimulant properties and potential for misuse, Adderall should only be taken under the supervision of a healthcare provider.