Yes Effexor SUCKS to come off of. I would do the taper as slow as possible. I went on it for a month over the holidays but came off because it made me absolutely ravenous and I gained a good amount of weight in a short time. I was only on 37.5 and figured it would be easy to stop. Not so! Brain zaps, nausea, and dizziness. It only went on for a few days but still. Sucky. My Pdoc had told me to take it every other day to wean off but I didn't listen. Listen to your Pdoc!