I had the same results from the generic Wellbutrin. I am now on Wellbutrin XL 300 and it's great. The generic stuff is bad. It made me very angry over little things and I am one of the easiest going people around. Ask your doctor for the Glaxo Smith Klein name brand.
I was never on the generic medication but on the Wellbutrin XL 300mg. I thought everything was great until about 2-3 months in when I turned into an absolute nasty witch with horrible road rage. I wish I could call what I have irritability but it's more along the line of certifiable madness. I've hurt a lot of people that are close to me with my hateful words and actions and feel utterly ashamed.