Symptom guide · Upset Stomach & Diarrhea
They ate something they should not have
A sudden upset with an obvious dietary cause, in an animal who is otherwise still bright.
Short answer: The natural remedies most commonly used for dogs and cats with this pattern of upset stomach & diarrhea are Nux vomica, Pet probiotics and Slippery elm. They suit mild, everyday cases in an otherwise healthy animal, and the page below sets out the point at which this stops being a home-care problem.
What this tends to look like
- Came on within hours of raiding a trash can, a counter, a compost heap or a rich meal
- Vomiting, loose stool, or both
- Still alert, still responsive, still interested in what you are doing
- Belly is soft, not tight or distended
- Often improving rather than worsening after the first few hours
What is usually going on
A gut that has been given something it cannot handle empties itself, from one end or both. In an otherwise healthy adult animal who is still bright, this is the most common and most benign version of a stomach upset, and it usually settles within a day or two with rest and simple support. The two things that turn it into something else are a genuine toxin and a genuine obstruction, which is why the questions above came first.
What people commonly use
Educational information only — not veterinary advice. Check with your vet before starting anything new.
Nux vomica
HomeopathicFor the over-indulged, upset tummy.
- Vomiting after dietary indiscretion
- Constipation & straining
- Irritable, over-ate
Pet probiotics
SupplementReset the gut after upset or antibiotics.
- Loose stool & digestion
- Post-antibiotic recovery
- Gut & immune balance
Slippery elm
HerbalA soothing coat for an irritated gut.
- Soothes stomach & bowel
- Loose stool support
- Mild nausea comfort
Where to find them
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What you can do at home
- Hold food for eight to twelve hours in a healthy adult, but never in a puppy, kitten, or a cat that has already stopped eating
- Keep water available. Small amounts often is easier to keep down than a full bowl at once
- Reintroduce with small, bland, low-fat meals, then move back to normal food over two or three days
- Add a pet-specific probiotic, which is one of the better-supported supplements for shortening acute diarrhea
- Track the times. If you end up at the vet, 'four times since 6am' is far more useful than 'a lot'
When to stop and call your vet
- Anything from the emergency list above appears, including blood or a hard swollen belly
- No clear improvement within 24 hours
- They become flat, weak, or stop drinking
- You now think what they ate might have been toxic, or included a bone, corn cob, peach stone or a toy
Not quite what you are seeing?
These are the other patterns we cover for upset stomach & diarrhea.
- Upset after a food changeLoose stool that started within a few days of switching food, in an animal who is otherwise well.
- A stomach upset with a stressful triggerLoose stool or a lost appetite that lines up with a clear change in the household or routine.
- A stomach upset that keeps coming backA pattern over weeks or months rather than a single episode, which is a different problem.
- A stomach upset in an animal who seems unwellWhen the animal itself seems wrong, the vomiting is the least important detail.
Natural remedies for dog upset stomach & diarrheaNatural remedies for cat upset stomach & diarrhea
Sources and further reading
Furemedy is written by a pet owner, not a veterinarian. The red flags on this page come from the independent professional sources below — check us against them.
- Vomiting in DogsMerck Veterinary Manual
- Disorders of the Stomach and Intestines in DogsMerck Veterinary Manual
- Vomiting in CatsMerck Veterinary Manual
- Disorders of the Stomach and Intestines in CatsMerck Veterinary Manual
- Animal Poison ControlASPCA
- Homeopathy: What You Need To KnowNIH NCCIH