The cat has been to the vet, and is actually in the early stages of kidney disease. I have a prescription, but so far, the two brands the vet carries, he doesn't like. I was asking about different brands, and maybe something I didnt have to depend on the vet to get, as they have botched the food order twice now. He's actually in good spirits, you really wouldn't know he had an issue, other than drinking a lot of water.
Thank you to those that offered helpful responses. I suspect had I owned a dog, I would have gotten more sympathetic answers. I love the way no matter what forum one can go on, one can ask a question in the off-topic/general section, and get the smart(edit - mod) response, that they should go to a forum specific to whatever topic you asked about. Sometimes it's about getting different opinions/experiences....I've asked on 4 different cat forums, not one person mentioned Dads cat food, nor Benazepril.
I've seen so many questions in this forum over my 12 years here, from computers, to climate change,food,to people venting about the loss of their pets, and 93 other topics that have absolutely nothing that have to do with motors, or oil....and somehow, without fail, someone has to chime in with an unhelpful, sarcastic answer, instead of just scrolling on by...