My 14 year old orange tabby starting to have bad kidney issues : ( Looks like I'll be giving him subcutaneous fluids twice a week to keep his fluids level constant. And the K/D (kidney-friendly diet) is not exactly cheap. I'm going to keep him going for as long as he's comfortable, though. He's been a fantastic cat- never scratched or hissed at anyone, serious hit with the ladies, etc. Love that guy.