I recently tried to taper off Celexa, an anti-depressant, and was wondering how long this awful process would take. My doctor never told me how hard it would be to go off! I get brain zaps (electric shock-like sensations in my head), feel lethargic and moody, have a hard time motivating myself, and am sleeping a lot (not out of choice--I just fall asleep and then wake up later than I planned). It's been a week and a half. When will it stop?