I've been on Keppra for over 3 yrs now, other than gain weight as soon as I was put on the drug, I've had numerous UTI's and kidney infec. as well as Kidney stones, I reduced my dosage by half (1000mg/day down to 500mg/day) over a period of 4 months last yr, still szr free, and blood levels come back with in therapeutic range (something my Neuro can't quite explain yet isn't making me go back up to the 1000mg/day). But I'm having more kidney issues.. am I alone on this? or is anyone else out there having kidney issues with Keppra?