"i am a 17 year old female who has had manic depression for about 6 years. i had it pretty well-managed while i was on a combination of wellbutrin and celexa. however, i started hallucinating from the celexa so my doctor switched me to venlafaxine. the switch of the medications was bad. i would scream and cry and freak out for no reason at all. i also had terrible headaches. i decided to keep on it to see if it got better...and it did. about 2 weeks into it i started noticing that i would hardly ever have anxiety or manic episodes. i&#039;m about 3 months into it now, and i hate it. for some reason the venlafaxine has done the exact opposite of what it is supposed to do. i have hysterical crying and screaming fits at least once a day."