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My puppy has chronic diarrhea, even after vet visits. What's next?

Updated On September 23rd, 2025

Pet's info: Dog | Rottweiler | Male | unneutered | 4 months and 10 days old | 27 lbs

Zeus our 4 month old Rottweiler has had diarrhea for basically his whole life so far on and off. He has had multiple fecal tests ran, given flagyl 3 times, changed his food slowly the vet said he may have been allergic to chicken because he was having diarrhea and very itchy/dandruff. He first was eating Blue Buffalo large breed puppy now he is eating lamb and brown rice natural balance puppy food. Diarrhea came back we gave raw diet and ya has been dewormed multiple times. Out of options. Help

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Answered By Rebecca, DVM

Veterinarian

Published on June 1st, 2018

Thank you for using Petco Pet Education Center, formerly Petcoach. Poor Zeus, he is a cutie. I would discuss further diagnostics with his veterinarian, such as sending out bloodwork to assess for pancreatic insufficiency, GI malabsorption and general health profile. If fecal samples have not been sent out to a diagnostic lab, that may be a good next step to look for less common parasites. In the case of food allergies, a prescription hypoallergenic food trial is needed to determine if that is causing the issue - which requires weeks of no food other than the restricted diet (no other treats, scraps, etc). Imaging such as abdominal ultrasound may also give more information about Zeus' issues. It may also be worth asking for a referral to an internal medicine specialist. I hope you get answers and a resolution to Zeus' diarrhea soon.

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