What Is Ritalin (Methylphenidate)? Ritalin, the brand name for methylphenidate, is a prescription-only stimulant used primarily to treat Attention Deficit Hyperactivity Disorder (ADHD) and narcolepsy. It works by increasing levels of dopamine and norepinephrine in the brain, helping to improve focus, attention span, and impulse control in both children and adults. According to Wikipedia, Ritalin […]