"i have bipolar disorder. i just started 10mg of prozac 3 weeks ago and i love it. i needed an antidepressant to work with the lithium i was taking. and i feel terrific. so far i haven&#039;t gained any weight. i gained 30 lbs because my thyroid stopped working and 20 of it has come off and i&#039;ve lowered the lithium and i attribute this to the prozac. i have wellbutrin as a stand by if the weight starts coming on but i really don&#039;t want to change. i am in control and for someone with bipolar that&#039;s a hard place to get to. "