Last seen: Aug 23, 2025
You do realize that this is a site and forum about cats.
My recommendation would be to return it.
Did the vet say he had any mites?
Are you using Revolution or Revolution Plus? And if he continues to spend time out side you may be fighting a losing battle. And I'm concerned that ...
Again, you don't say whether your vet recommended that you still feed a "prescription diet." Crystals come back. It is not likely a temporary condit...
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