BUY RITALIN ONLINE (10MG METHYLPHENIDATE TABLETS) Ritalin is a drug of ADD/ADHD category. You can see details and related ritalin in same ADD/ADHD category written below. ADD/ADHD: ADHD (Attention dificit hyperactivity disorder) is a problem of not being able to focus, being overactive, not being able control behavior, or a combination of these. For these […]