I'm so sorry to hear that this is happening. I hope that your new vet will be able to help you. Like others have said, I'd try to either get the medicine compounded into a liquid form or a cream. I hope that you'll be able to find a solution for this problem and that you won't have to rehome any of your cats. Please continue to keep us updated. Good luck.

I did have to rehome my semi-feral cat Cirrus because he and Storm would fight daily and it just got worse. He was a cat that I wouldn't be able to medicate unless it was in his food but he was too smart. Now he has a wonderful new loving forever home. If you do have to rehome your female then I hope that everything will work out for her. Good luck.