Physicaly symptoms and conditions

I have been on geodon for about a year and a half it was like a miracle drug for me after about three weeks all of my symptoms were gone I suffered from post partum ocd/anxiety and have been given a diagnosis of bipolar I but now it is time to start weaning and it is terrible if I am even two hours late on my dose i feel awful physicaly....has anyone successfully weaned off how slowly did you do it to avoid the withdrawl??