I have been taking 100 mg of topiramate daily for about a decade I think. I can't remember how long because my memory is terrible but it has been a very long time. About a year ago I had to begin ditropan XL 10 mg daily for my incontinence issue. I had to pee about fifteen times a day and there were times I didn't make it to the toilet. At night I had become a bedwetter. The ditropan has helped with all of that. I have my suspicions that the Topamax may be the reason for the kidney problems. But then it may just be old age. All input will be appreciated.