My pdoc did it for the same reason that yours did - nothing much else helped.

I've been on Geodon for awhile now. Just got my dosage increased from 80 to 120. It does help. I was on Lithium and this is what he changed my prescrip. to - not any real side effects either, just really thirsty a lot.

Make sure you drink lots of fluids. Hope it works out for you.