Ask a Vet and Get Your Veterinary Questions Answered.
Not possible to answer.
We do not use this drug regularly in veterinary medicine.
I would say that 6 tablets for a 25 pound dog can certainly cause severe illness. Vomiting, diarrhea, possible impact on liver or kidney values. Fatal? Not necessarily at all. With proper supportive care, to maybe include some intravenous fluid to help flush out the body, I think a pet would recover okay.