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Ritalin stimulant pill. Ritalin. Ritalin is a brand name for the drug methylphenidate (MPH), which is a stimulant of the central nervous system. Ritalin is used to treat attention-deficit hyperactivity disorder (ADHD) in children and adults. It is also one of the primary drugs used to treat the daytime drowsiness symptoms of narcolepsy and chronic fatigue syndrome, as well as traumatic brain injury. Ritalin is a proprietary brand of Novartis Pharmaceuticals.
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