"i&#039;ve been on wellbutrin for 2 weeks and i don&#039;t really feel any better. i notice weight gain and more irritability than usual. i&#039;ve read that i must be patient and continue taking it and i should see improvement after about a month. i took this years ago and it was the reason i was able to quit smoking. my wife called it the happy pill because she saw a big difference in my mood. so far it&#039;s not having the same affect it did 15 yrs ago. i do like that i am not having any other side affects. my sex drive is still good and i think my anxiety  has improved somewhat. i&#039;m on 100 mg a day and i take it first thing in the morning."