We have been fighting Cooper's UTI for the last few weeks. He had been getting better; no accidents in the house for two weeks. However, he was still drinking excessively and was requesting to GO POTTY a lot.
The cranberry tablets were having some effect, but he was also experiencing periodic vomiting. Through trial and error, I linked the cranberry to his episodes. I checked and cranberries are not on the list of potentially poisonous foods, but they apparently did not react well in Cooper's system.
We started a more aggressive antibiotic schedule which appears to be working with no side effects.