"Methylphenidate (MPH) is a prescription stimulant commonly used to treat Attention-deficit hyperactivity disorder, or ADHD. It is also one of the primary drugs used to treat the daytime drowsiness symptoms of narcolepsy and chronic fatigue syndrome. The drug is seeing early use to treat cancer-related fatigue [1]. Brand names of drugs that contain methylphenidate include Ritalin (Ritalina, Rilatine, Ritalin LA (Long Acting)), Attenta, Concerta (a sustained release tablet), Metadate, Methylin, Penid, and Rubifen. Focalin is a preparation containing only dextro-methylphenidate, rather than the usual racemic dextro- and levo-methylphenidate mixture of other formulations. A newer way of taking methylphenidate is by using a transdermal patch (under the brand name Daytrana), similar to those used for hormone replacement therapy and nicotine release. ". Read more about Ritalin

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