Methylphenidate (Ritalin, Concerta) Ritalin Is… a central nervous system stimulant. Created in 1954, Ritalin has been in use for over sixty years. (Check out a History of Ritalin here). It was first FDA approved in 1955 to treat ‘hyperactivity’ and later was approved to treat attention deficit hyperactivity disorder (ADHD). Ritalin increases extracellular levels of dopamine […]