"i am on 150 mg of the generic bupropion for approximately 2 months now. the side effects have been increased anxiety and irritability as well as really bad insomnia. went to see the doctor and they increased it to 300mg a day. i am skeptical, thinking it will intensify the side effects but they are telling me it should decrease them with a higher dose. i went in to change to a different medicine, we&#039;ll see what happens. i still don&#039;t understand doubling the dose."