Abilify has a good weight neutral profile too. In fact, FarmerGirl posted a link to a study of all atypical AP's on here a few days ago and Abilify was shown to be ahead of Geodon, but ever so slightly.

But Abilify can come with its own set of side effects for which Cogentin is taken, which you cannot tolerate. But there are other drugs to counteract Abilify-induced side effects, besides Cogentin, so you would still have options.

Geodon is not Lithium so there is no hard and fast rule as to what is therapeutic; there is no blood test/known therapeutic range for the blood levels. There are some general dosing guidelines only and the rest is up to you to observe monitoring yourself. But the jaw problem is not something to put up with. I have never heard of it before.