Most people have already heard about Ritalin. For those who haven’t, here’s a recap from Wikipedia: Methylphenidate (trade names Concerta, Methylin, Ritalin, Equasym XL, Quillivant XR) is a substituted phenethylamine and psychostimulant drug used for the treatment of attention-deficit hyperactivity disorder (ADHD), postural orthostatic tachycardia syndrome and narcolepsy. Methylphenidate has been studied and researched for …