My 7 year old is on Metadate CD and has been for over a year now. Has anyone else noticed side effects after a year of being on it? He never had any problems before with the medicine, but now he has some signs such as random vomiting, bloody nose, seizure, and shaking limps at times. Doctors have ran test and they all came back fine. Now wondering if it is due to the medicine. Though now with summer here, I stopped his medicine. Maybe withdrawl or not even related to the medicine... any advice is appreciated!