Has anyone used the AZO bladder control.  i was using it because it says that it is all natural.  It helped.  I could actually sleep almost 6 hours without having to get up to pee.  I was excited until I went to my Dr. for a routine checkup and had blood work done.  My blood work showed that I had a low kidney function.  I stopped taking the AZO, had blood work done 6 weeks later and my kidney function is just fine now.  I guess that I will deal with having to pee more often, having a low kidney function is not a good thing.