Ritalin is a mild central nervous system stimulant. It affects chemicals in the brain and nerves that contribute to hyperactivity and impulse control. Ritalin is used to treat attention deficit hyperactivity disorder (ADHD), and narcolepsy (an uncontrollable desire to sleep). Expanded uneasiness can be a result of energizer prescription for ADHD, similar to Ritalin. So it very well may be making your youngster more restless.