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Updated on September 23rd, 2025
Pet's info: Dog | Yorkshire Terrier | Female | unspayed | 1 year and 10 months old | 3.4 lbs
My dog was given deworming medication this pst Saturday. She was given Pyrantel endoparasite and revolution ectoparasite. Her stools were normal on Sunday. On Monday she didn’t poo at all. And all day Tuesday she was throwing up and pooing diarrhea. She would poo sometimes very dark brown and sometimes orange with a couple blood spots and little white things. I don’t know if this is normal. She seems to not feel sick she’s still hungry and drinks water but I’m very concerned!!!!
2 Answers

Answered By Justin Plunk, DVM
Veterinarian
Published on June 20th, 2018
Answered By Lindsey Edwards MVB, BSc, IVCA
Veterinarian
Diarrhea following deworming treat me is not uncommon, especially if worms were present. As long as her appetite is good and there is no persistent vomiting i would not be overly concerned. A probiotic such as fortiflora with added fiber can be helpful for recovery
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