I've been on both Geodon and Lithium. And i have to say that Li is sooo much better for me than Geodon.

Geodon made me very sleepy during the day, so much so I nearly crashed my car several times. It also started to damage my liver. (I have a genetic predisposition to liver problems so i have to avoid anything that messes with it, is terrible)

Lithium has worked well for me. It has calmed me down and lot and hasn't caused too many problems.

It does cause some weight gain, and I'm still working on that, but overall it has worked well.