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My dog has chronic diarrhea, vet found no cause. What should I try?

Updated On September 23rd, 2025

Pet's info: Dog | Rottweiler | Male | unneutered | 27 lbs

We have an 8 month old Rottweiler who has eaten the same dog food his whole life, doesn’t eat human food, only drinks water and he gets diarrhea at least one week a month. It’s on and off! Everytime he goes to the vet he tests negative for worms and parasites he just finished antibiotics for diarrhea.

1 Answer

Most Helpful Answer

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Answered By Dr. Strydom, DVM

Veterinarian

Published on December 5th, 2019

I suggest you put Gus on a probiotic for a month to see if it helps. I strongly recommend you use Fortiflora (no human probiotics). Fortiflora comes as a box of 30 packets - one packet on food daily so this will give you one month to see if it helps. If it does, great, you can keep him on it indefinitely. If it doesn't help then you need to go to more testing like for inflammatory bowel disease or food allergies. ( https://www.allivet.com/p-1130-purina-pro-plan-veterinary-diets-fortiflora-dog-supplement-box-of-30.aspx?SearchTerm=fortiflo+Auto )

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