No help with the cats, but I do have three poodles who stay at home when I go somewhere, very happily, with their "come to my home" sitters. These folks are very good, but I can't remember if I've ever had to have them give meds or do anything radical to mine...but they surely would and they would do very well with it, I'm sure. Is there no one in your area who could do this? If they're professionals, as mine are, they can handle it all and you don't need to worry about it! Good luck!