I have two relatives that are taking it and doing really well. I was on it about 2 years ago and, unfortunately, did not do as well. I don't believe that it's a common side effect, but I was extremely somnolent--I was sleeping like 15 hours a night no matter what I did. Anyway, because of it's typical efficacy, it's a highly regarded drug. Good luck!
DX: NDPH, Recovered CRPS
RX: Lamictal, Abilify, Verapamil, Provigil, Clonazepam, Rozerem, Emsam
PRN: DHE IM, Droperidol IM, Toradol IM, Haloperidol, Zyprexa, Lodine, Thorazine, Zofran