"i started wellbutron about 1 year ago.  i have primarily taken 300mg daily.  a while back we tried going up to 450mg, but my tremor was too bad so we decreased the dose to 300mg.  a couple of weeks ago we tried going up again, but had to stop because of the tremor and also i was having tremendous memory difficulties.  half way through a sentence, i couldn&#039;t remember what i was talking about.  i had poor word-finding abilities, and twice in one day i couldn&#039;t remember what street i was driving on and how the streets met up at intersections.  i also went to a movie with a friend and though i remember going to the movie, i have no idea what it was about.  back down to 300mg, i am much better, but still experiencing lesser symptoms."