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My cat has diarrhea 4 days after deworming. Should I be worried?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | unneutered | 3 months and 19 days old | 4 lbs

Hi, my cat has diarrhea after deworming for 4 days. He was fine before I adopt a new kitten (about 4-5weeks old).So I am not sure is the kitten has the virus or the deworm tablet problem. He is about 5 months old. I am bit worried about him. Is that normal to have diarrhea after deworming? Thank you

1 Answer

Most Helpful Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on March 20th, 2017

diarrhea after deworming can be normal, but usually for no more than a couple days. this is probably due to something else, either a virus, bacteria or something in the food he isn't copping with. i would recommend taking him to the vet in order to get it treated.

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