I have been on Ditropan, then Ditropan XR (or EX, don't remember which is correct) and after about 10 years that didn't work, so my doctor put me on Enablex and that works pretty well. Then I got a new Dr. and he wanted to switch me to Vesicare. That didn't work well, either, and I began having episodes of incontinence and urgency again.
It's almost open enrollment for Medicare Part D, and the plan that is the most affordable otherwise doesn't cover Enablex at all anymore.