I have a 14 year old son who recently started Vyvance and Geodon. Two weeks ago, after being on it for appx. 6 weeks, he started having alot more anger than usual (ie. punching walls in, wanting to beat up a handicapped kid at school, threatening to punch me in my face and smother me in my sleep, etc....) So I became really concerned and assumed it was the Geodon, but after hearing from one other person and looking it up online, I now know that Vyvance has had at least 163 cases causing aggression, 133 cases of irritability, 112 cases causing agitation, 101 cases causing abnormal behavior, 91 cases causing anger, 10 cases causing hostility and 3 cases of physical assault. I immediately took him off of it. View Thread