I had anorgasmia on it. I reduced geodon, recovered orgasms to some extent, then was put on Topamax and lost all drive and capacity for orgasms. Even on the tiniest dose.
I also was dizzy and had a whole laundry list of other negative side effects. I stopped after a month.
the thing is, after I stopped, I have gained weight and it seems unexplainable since I eat LESS now. Maybe it is the weirdness of my body. Maybe it is the metabolic system getting completely out of whack by my having taken meds that cause gain and then topamax.
So I am not sure.
It did not do that much for migraines.
Here is my old thread:
Topamax has arrived - Forums at Psych Central