There was a recent article in Glamour about the withdrawl of the drug, even after a gradual decrease in dosage. I confirmed the article's facts with a doctor (hey, it's Glamour), and she said that they have found these withdrawl effects, but drug companies have not done enough research on these effects to put them in the packaging inserts.
So, please, talk to your doctor or therapist or whomever. The whole experience that was described sounded horrible, and I care about all of you & don't want you to be in pain.