Amphetamine remains one of the most effective and longest-established stimulant medications available in 2026 for the treatment of attention deficit hyperactivity disorder (ADHD) and narcolepsy in adults and children over six years old. Chemically, pharmaceutical amphetamine is usually supplied as mixed amphetamine salts (a 3:1 ratio of dextroamphetamine to levoamphetamine) or as dextroamphetamine alone (Dexedrine). […]