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Small Dog Hasn’t Pooped for 30 Hours After Diarrhea Medicine

by Sandy Trent
(Clermont, Fl)

Reader Question
I have a maltese/pom mix...1 year old and 8 lbs. The last week she had soft bowels that lead into water bowels. The watery bowels lasted 2 days. Gave her an anti-diarrhea medicine purchased from PetSmart (1 teasp total) It stopped her pooping now for 30 hours. Been feeding her boiled chicken and rice for one day waiting for her to poop. Is this normal after diarrehea?


Answer from Our Team

A day or so without a bowel movement after diarrhea is common, especially after anti-diarrhea medicine, which slows the gut, and while she's eating a bland diet that leaves little stool. If she's bright, eating and drinking, it's usually fine to wait.

Call your vet if she hasn't pooped within 48 to 72 hours, or sooner if she strains, vomits, stops eating or seems lethargic. For the future, please check with your vet before giving over-the-counter anti-diarrhea products: loperamide can be dangerous for dogs with the MDR1 gene mutation, common in herding breeds such as Collies and Australian Shepherds, and bismuth subsalicylate (Pepto-Bismol) contains an aspirin-like drug and turns stool black. Doses for small dogs also need care.

Our guides to dog constipation and dog diarrhea treatment have more.

This is general information, not a diagnosis. Please follow your own vet's advice.

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