We went to PETCO and bought HARTZ 3 in 1 for small dogs and puppies. My little yorkiepoo Prissy got so sick. We applied it to her at night by the next afternoon she was vomiting with loose stool. We took her to the vet later that day. They informed us about how horrible that stuff is. She is on pain medicine and can’t hold her food down. I have washed her with DAWN but i’m still very concerned. I hope she gets better.