I found that this site
http://www.amazon.com/review/product/B000MSVR66/ref=dp_db_cm_cr_acr_txt?%5Fencoding=UTF8&showViewpoints=1which has customer testimonials on how much it helps their animals in a kidney failure situation which may make you feel better about using it.
Azodyl is a type of probiotic that re-balances the bacteria in the gut and is used particularly after a pet has been on antibiotics to get the digestive tract back working properly. It also contains fiber to help normalize stools and help get urea out of the body through the intestinal tract.
The manufacturers of Azodyl claim that the strains of bacteria in their particular product have a particularly ability to bind with and reduce the levels of toxins in the blood by removing them via the digestive tract.
Hope this helps you!
As each animal is unique and each health situation is also your vet who is treating your dog is the best one to answer those questions.If your dog is in kidney failure how well he will do and how long he will last can vary a great deal depending on how ill he is now.
My current kidney failure pet is a cat and he's been being treated with fluids and meds successfully for over a year and half so far.
Its likely your dog will need to be on the probiotic for life if kidney failure is the problem.
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