I have been on Klonopin for years now ,I was doing some reading up on it from the paper the pharmacy gave me,Well if you dont already know this that klonopin can cause angry and violence.I certainly do get angry but I also have bipolar and mood swings too.it could cause aggravation, nausea ,get this it can actually make you feel anxious.I just love it when you take a pill that is suppose to be able to help you with something when it fact it can actually cause the problem you are trying to fix.I know it is a controlled drug and they really dont prescribe it anymore because people tend to abuse it.I myself dont I only take it when I need it.I just wanted you to know this that is all.