Stimulant medications, such as those used to treat attention-deficit/hyperactivity disorder (ADHD), may raise the risk for psychotic side effects among young patients who have a parent with a history of serious mental illness, new research suggests...These side effects included hallucinations, delusions, hearing voices, and/or perceptual disturbances, the researchers said...The study findings were published online Dec. 30, and in the January print issue of Pediatrics...