Dog Upset Stomach: What to Give and When to See a Vet

Key takeaways

  • Most mild upsets settle within a day or two.
  • Small amounts of water and small bland meals are the safest home care.
  • Avoid human stomach and diarrhea medicines unless your vet prescribes them.
  • Antibiotics aren't needed for most simple upsets.
  • Blood, repeated vomiting or signs over 48 hours need a vet.

An upset stomach in dogs usually shows up as lip licking, drooling, a gurgling belly, gas, eating grass, skipping a meal, vomiting or loose stool. Most mild cases settle within a day or two with rest, water and a bland diet.1,2,3 But some of the most common "home remedies," including several human stomach medicines, can harm dogs or hide signs your vet needs to see.4,5,6 This guide covers the signs of an upset stomach, the common causes, what you can safely give at home, what to avoid, and when to see the vet.

Call your vet right away if your dog's upset stomach comes with:

  • Blood in the vomit or stool, or black, tarry stool1,7
  • Repeated vomiting, or vomiting with diarrhea that lasts more than a day2,8
  • Retching without bringing anything up, or a swollen, tight belly (possible bloat: go to an emergency vet now)9,10
  • Weakness, lethargy, pain or signs of dehydration11,10
  • A puppy under 4 months old, or a known or suspected toxin or swallowed object12,11
  • Signs that last more than 48 hours1

Is your dog's belly pain an emergency?

See which signs mean go to an emergency vet now and which mean call your vet today, and print our free checklist for your fridge.

Check the emergency signs

What the Research and Guidelines Say

  • Most sudden diarrhea clears up, with or without antibiotics. In a UK study of nearly 900 dogs seen by a vet for sudden diarrhea, about 87% to 88% recovered whether or not they were given antibiotics or gut supplements.13
  • Antibiotics usually aren't needed. A 2024 European guideline recommends against antibiotics for mild or moderate sudden diarrhea in dogs, even when there is some blood.14
  • Diet alone did better than diet plus an antibiotic. In a trial of 59 dogs with sudden, non-infectious colitis, dogs on an easily digested diet recovered in a median of 5 days, compared with 8.5 days for dogs on the same diet plus an antibiotic.15
  • Probiotics have a small effect. The same guideline found probiotics shortened diarrhea by less than a day on average, and took no position for or against them.14
  • Human medicines top the poison list. Over-the-counter medicines and supplements are the most common cause of pet poisoning calls to the ASPCA.6

Not sure how worried to be? Try our free Dog Vomiting Checker. Answer 8 quick questions to find out how soon to call your vet and which causes to ask about.

Signs of an Upset Stomach in Dogs

  • Drooling or lip licking, which are signs of nausea16,1
  • Vomiting, or loose stool or diarrhea1,2
  • Gas and a loud, gurgling belly1
  • Eating more grass than usual, though most dogs that eat grass aren't ill8,17
  • Eating less or refusing food18,1
  • Signs of belly pain, such as stretching with the front legs on the floor and the back end up18,1

The "Prayer Position": A Sign of Belly Pain

Some dogs with a painful belly stand with their front legs and chest low to the ground and their rear end up, as if bowing. Vets call this the prayer (or praying) position. It looks like a play bow or a morning stretch, but a dog in pain holds it or keeps returning to it, and may also seem restless, quiet or off their food.32,33,34 It's a known sign of pancreatitis and can also appear with bloat.32,33,34

If your dog keeps taking this position, call your vet today. Go to an emergency vet now if it comes with retching that brings nothing up, a swollen belly, pale gums, repeated vomiting or collapse.34 See is my dog's stomach pain an emergency? and pancreatitis in dogs.

What Causes an Upset Stomach in Dogs?

  • Eating something they shouldn't, such as garbage, table scraps, spoiled food or plants, which is one of the most common causes.11,19,20
  • A sudden change of food or new treats.20,3
  • Infections and parasites, including parvovirus in puppies.2,21
  • Medicines, including some anti-inflammatories and antibiotics.19,2
  • Stress.1
  • Pancreatitis, sometimes after eating rich, fatty scraps or garbage. See pancreatitis in dogs.18
  • Longer-term problems such as inflammatory bowel disease, food sensitivities, kidney or liver disease, and Addison's disease.11,22 See IBD in dogs.

What Can I Give My Dog for an Upset Stomach?

If your dog is bright and alert and has only mild signs, these steps are usually safe. Check with your vet first for puppies, older dogs, and dogs with other health problems.

  • Water: offer small amounts often. Ice cubes can help a dog who gulps water and then vomits.8,10 Never give sugar-free drinks or products, which may contain xylitol, a sweetener that is toxic to dogs.4 Ask your vet before giving any electrolyte drink.
  • A short break from food: a few hours at most for an adult dog after vomiting. Long fasts are not proven to help. Puppies, especially toy breeds, need frequent meals, so don't hold food back from a puppy unless your vet advises it.8,23,24
  • A bland, low-fat diet: small, frequent meals of plain boiled chicken or white fish with white rice, or a vet-recommended digestive diet, for a few days.10,1,15 Then mix the usual food back in over a few days.10,19 Some vets prefer to keep a dog on his usual food if the upset is mild, because a sudden change can make things worse.3
  • Pumpkin: plain canned pumpkin is popular, but it contains very little fiber. If your dog needs more fiber, ask your vet about a proper fiber supplement or diet. Never use pumpkin pie filling.25
  • Probiotics: unlikely to hurt, but the benefit is small.14,26
  • Rest: skip long walks and rough play until he's better.10

For more on diarrhea, see home care for dog diarrhea and dog vomiting and diarrhea.

Human Stomach Medicines to Avoid

Don't give your dog human stomach or diarrhea medicines unless your vet has told you to.

  • Pink bismuth stomach remedies contain a salicylate, a relative of aspirin. They can cause salicylate poisoning, vomiting and diarrhea, shouldn't be used in dogs with stomach ulcers, and are risky for dogs with kidney, liver or bleeding problems. They turn stool black, which can hide signs of bleeding, and they can interfere with X-rays. Dogs taking anti-inflammatory pain relievers should never be given them.4,27
  • Human anti-diarrhea medicines that slow the gut can cause serious nervous-system poisoning in dogs with the MDR1 gene mutation, which is common in collies, sheepdogs and related breeds. They are also unsafe when diarrhea is caused by an infection or toxin.5,28
  • Human pain relievers can cause stomach ulcers and kidney damage in dogs.29
  • Antacids and acid reducers should only be given if your vet prescribes them, at a dose set for your dog.1,30
  • Leftover antibiotics aren't needed for most upset stomachs and can do more harm than good.14,15

When to Take Your Dog to the Vet

Call your vet if your dog keeps vomiting for more than a day, if other mild signs haven't improved within about 48 hours, or sooner if any of the signs in the box at the top of this page appear.1,2,11,10 Vomiting and diarrhea together can dehydrate a dog quickly, especially if they last more than 24 hours.2 Check for dehydration by looking for sticky gums and sunken eyes, and by gently lifting the skin at the back of the neck. If it is slow to fall back, your dog may be dehydrated.12,10 Dehydrated dogs often need fluids from a vet.2,31

If there is blood in the vomit, see dog vomiting blood. For bloody diarrhea, see bloody diarrhea in dogs.

When an Upset Stomach Keeps Coming Back

A dog whose stomach upsets keep returning, or who is losing weight, needs a full workup. Vomiting that comes and goes for more than 1 to 2 weeks is considered chronic.19 Vets look for causes such as food sensitivities, inflammatory bowel disease, parasites, pancreatitis, Addison's disease, and kidney or liver disease. Tests can include blood and urine tests, stool tests, X-rays, ultrasound and endoscopy with biopsies.11,22,19 A diet trial, in which the dog eats only a special novel-protein or hydrolyzed diet, is often part of the plan.19 See why is my dog throwing up.

Frequently Asked Questions

What can I give my dog for an upset stomach and vomiting?

Small amounts of water often, a short break from food, then small bland meals. Ask your vet before giving any medicine.

Can I give my dog human stomach medicine?

Not without your vet's advice. Some can cause bleeding or poisoning, or hide signs your vet needs to see.

How long does an upset stomach last in dogs?

Mild cases usually improve within a day or two. See your vet if vomiting lasts more than a day, other signs last more than 48 hours, or things get worse.

Why is my dog's stomach making noises?

Gurgling is often gas or hunger. Loud gurgling with vomiting, diarrhea or not eating is worth a vet call.

Is chicken and rice good for a dog with an upset stomach?

Plain boiled chicken and white rice is a common short-term bland diet. Don't feed it long-term, because it isn't balanced.

Does pumpkin help a dog's upset stomach?

It is popular but contains little fiber. Ask your vet about a proper fiber supplement if needed.

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Sources and further reading

This article was rewritten and fact-checked on October 18, 2026 against current veterinary references and specialist guidelines:

  1. Morrison BJ (reviewed by Kleszynski B). Upset Stomach in Dogs: Signs and What To Do. PetMD, updated March 31, 2025.
  2. Weir M, Hunter T, Ward E. Gastroenteritis in Dogs. VCA Animal Hospitals, updated June 19, 2026.
  3. Your Dog (Cummings School, Tufts) with Heinze C. Chicken and Rice for an Upset Tummy? Tufts Your Dog newsletter, undated.
  4. Dodd C (veterinary input: Smith A, Klein J). Is Pepto-Bismol Safe for Dogs? American Kennel Club, updated October 8, 2026.
  5. Hawkins R. Problem medications for dogs. Washington Animal Disease Diagnostic Laboratory, Washington State University, March 1, 2022.
  6. ASPCA. The Top 10 Toxins of 2025. ASPCA Animal Poison Control Center, March 15, 2026.
  7. Burkhill G. Symptom: blood in vomit. Animal Trust Vets CIC, July 2026.
  8. Gillette L. Dog Vomiting: Causes, Treatment, and When To Worry. PetMD, April 7, 2026.
  9. American College of Veterinary Surgeons. Gastric Dilatation-Volvulus. ACVS animal owner resource, last modified October 30, 2023.
  10. PDSA vets and vet nurses. Vomiting in dogs. PDSA Pet Health Hub, October 2024.
  11. Barnes C, Williams K, Ward E. Vomiting in Dogs. VCA Animal Hospitals, updated August 14, 2026.
  12. Case J. Vomiting and Diarrhea in Puppies. PetMD, March 29, 2023.
  13. Pegram C, Diaz-Ordaz K, Brodbelt DC, Chang YM, Tayler S, Allerton F, et al. Target trial emulation: Do antimicrobials or gastrointestinal nutraceuticals prescribed at first presentation for acute diarrhoea cause a better clinical outcome in dogs under primary veterinary care in the UK? PLoS ONE 18(10):e0291057, 2023. doi:10.1371/journal.pone.0291057.
  14. Jessen LR, Werner M, Singleton D, Prior C, Foroutan F, Ferran AA, et al. European Network for Optimization of Veterinary Antimicrobial Therapy (ENOVAT) guidelines for antimicrobial use in canine acute diarrhoea. The Veterinary Journal 307:106208, 2024. doi:10.1016/j.tvjl.2024.106208.
  15. Rudinsky AJ, Parker VJ, Winston J, Cooper E, Mathie T, Howard JP, et al. Randomized controlled trial demonstrates nutritional management is superior to metronidazole for treatment of acute colitis in dogs. Journal of the American Veterinary Medical Association 260(S3):S23-S32, 2022. doi:10.2460/javma.22.08.0349.
  16. Barnes C, Hunter T, Downing R. Megaesophagus. VCA Animal Hospitals, updated May 28, 2024.
  17. Sueda KLC, Hart BL, Cliff KD. Characterisation of plant eating in dogs. Applied Animal Behaviour Science 111:120-132, 2008. doi:10.1016/j.applanim.2007.05.018.
  18. Steiner JM. Pancreatitis and Other Disorders of the Pancreas in Dogs. Merck Veterinary Manual (pet owner version), full review May 2018, last updated December 2024.
  19. Blois S (reviewed by Carnevale J). Gastritis in Small Animals. Merck Veterinary Manual (professional version), reviewed January 2025, updated August 2025.
  20. O'Neill DG, Prisk LJ, Brodbelt DC, Church DB, Allerton F. Epidemiology and clinical management of acute diarrhoea in dogs under primary veterinary care in the UK. PLoS ONE 20(6):e0324203, 2025. doi:10.1371/journal.pone.0324203.
  21. Cornell Richard P. Riney Canine Health Center. Parvovirus: Transmission to treatment. Cornell University College of Veterinary Medicine, updated April 2024.
  22. Hunter T, Williams K, Ward E, Downing R. Addison's Disease in Dogs. VCA Animal Hospitals, updated March 6, 2023.
  23. McKenzie B. Tummy troubles: Empirical treatment of acute vomiting. Veterinary Practice News, September 20, 2021.
  24. Mar Vista Animal Medical Center. Toy Breed Hypoglycemia. Mar Vista Animal Medical Center, updated August 2021, reviewed July 2023.
  25. Freeman L. People like giving pets pumpkin, but is it good for them? Tufts Now, October 3, 2017.
  26. Shmalberg J, Montalbano C, Morelli G, Buckley GJ. A randomized double blinded placebo-controlled clinical trial of a probiotic or metronidazole for acute canine diarrhea. Frontiers in Veterinary Science 6:163, 2019. doi:10.3389/fvets.2019.00163.
  27. Givler D. Pet Medication 101: Pepto-Bismol. FirstVet, updated July 29, 2021.
  28. Forsythe LR, Gollakner R. Loperamide. VCA Animal Hospitals, updated July 18, 2025.
  29. Schmid R, Brutlag A, Gollakner R. Ibuprofen Poisoning in Dogs. VCA Animal Hospitals, updated August 14, 2026.
  30. Webvet Editorial Team (reviewed by Elliott P). Dog Vomiting Blood. Webvet, June 29, 2026.
  31. Collier A (reviewed by Carnevale J). Acute Hemorrhagic Diarrhea Syndrome in Dogs. Merck Veterinary Manual (professional version), reviewed June 2025.
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  33. Hunter T, Panning A, Ward E. Pancreatitis in Dogs. VCA Animal Hospitals, updated February 6, 2026.
  34. Cornell University College of Veterinary Medicine, Riney Canine Health Center. Gastric dilatation volvulus (GDV) or "bloat", April 2025.

About this article

Last updated : page rewritten using Merck Veterinary Manual, VCA, PetMD, PDSA, Tufts and Washington State University guidance and the 2024 ENOVAT veterinary guidelines; removed outdated medicine advice.

This page is for general information and is not a substitute for an exam by your veterinarian.