Ritalin Study

This article describes the results of a study of the effects of Ritalin on children with pervasive developmental disorders. It seems there are no easy answers - "Methylphenidate was often efficacious in treating hyperactivity associated with pervasive developmental disorders, but the magnitude of response was less than that seen in typically developing children with attention-deficit/hyperactivity disorder," and "adverse effects were more frequent," the researchers concluded."