Buy Ritalin Online – A Game-Changer for ADHD Treatment Order Ritalin online and receive overnight or same-day delivery options. With a trusted pharmacy service, get reliable and swift shipping. Ritalin, known generically as methylphenidate, is a central nervous system stimulant primarily used to treat Attention Deficit Hyperactivity Disorder (ADHD) and narcolepsy. It works by increasing the levels of dopamine and norepinephrine in the brain, enhancing focus, attention, and impulse control. Ritalin is effective for both children and adults, helping to improve academic and professional performance. It is also used off-label to manage fatigue and cognitive impairment. Ritalin is recognized for its ability to boost mental clarity and productivity.