I have a cat that recently had surgery to remove crytsals from her
bladder and the vet has put her on Hills Percription Diet S/D. I'm
wondering if anyone knows if it's ok to feed my other cat the same
food. They are both females and the same age (sisters). It has been
a complete pain to seperate them at feeding time and the other cat
ends up eating the Hills anyway.

p.s. I asked this question to my vet but she hasn't gotten back to me
yet.

Thanks for the help,

Kate