Risperidone
"I suffer from PTSD, in which I hear voices (psychotic symptoms due to PTSD, not schizophrenic). Been on this drug 6 months now. The risperidone doesn't completely get rid of the voices, but it significantly decreases them. I feel much calmer on this medication then I am without it. I don't recall any major side effects, nothing has bothered me enough to even notice it. A plus is also that it makes me sleepy for the first 12 hours or so, so it counteracts the Wellbutrin, which tends to keep me up at night and helps me get a good night's sleep. 

I did go off of it for a little while, and the withdrawal was very minimal. I had some increase in anxiety for about 4 days (I worried excessively about things I normally wouldn't worry about)."