Well, it finally happened, no more of the sale stuff, I had to go back to the vets on Friday, and the doctor gave me two prescriptions. One was for Zeniquil and one was for science diet urinary tract health formula. He LOVES his prescription food. He freaks out when I pour a cup in his dish, he gobbles it all up. The doctor also told me to switch to the adult formula as well. Petco had it on sale for 30 dollars for 20 pounds. Pricier than the stuf I was getting for 10 dollars for 20 pounds, but I think it will help him in the long run. He also seems to love it more than his old dry food, which he will no longer touch