I'd call your vet and report what you're seeing. They'll want to know that she's not responding as expected and will be able to guide you in what to do next. There's very few medications that work equally well for every dog in every situation, so it's likely just bad luck that it's not agreeing with her, but I'd definitely want to talk to her vet before doing anything in case there's something else going on.
Good luck!
Good luck!