If I'm remembering correctly, Rilexine is only able to be taken if you aren't allergic to penicillin.
And, yes, it can cause vomiting either way.
It's not just for animal use. Humans take it also.
What did the vet say?
Were it me, I would think that she should not take it, given the reaction. Because, timing-wise, that sounds like what could have caused the problem.
That's an interesting thought. Maybe you're right about the vet!
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