Sarah, I'm taking 150mg/day topiramate, generic Topamax (and much less expensive). It works for me cause it helps with my pain and continues to curb my appetite somewhat, which is a good side-effect for some people. It helped me lose weight at 1st, you didn't mention that or it's most often noticed bad side effect, short-term memory mess-up! That is so bad, but I've gotten used to it and weaned myself down to 150mg from 200mg that my Dr. started me on....I take lots of notes. But if you're not getting any of it's benefits and with a kidney problem already, then, sure, why not go to another of the same type medication or whatever you and your Doctor decide....best of luck to you. Maybe it's because you are younger (from your photo) that it doesn't affect your memory....?