My son, age 45,is suffering with ADD.  Are some symptoms of ADD anger in addition to  depression?  He has never taken medication for it because of lack of health insurance.  He now has insurance through the state, having been out of work for two years.  Anger is always present, though he tries to overcome it and live somewhat happily and normally, but it doesn't work very well.  What can I do to help him with his constant anger?

Thank you for any information and help you can give me.