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My dog ate grapes. What should I do? Induce vomiting or monitor?

Updated On September 23rd, 2025

Pet's info: Dog | English Mastiff | Male | 3 years and 11 months old | 150 lbs

good evening, I have a 150 pound Mastiff who is approximately 4 years old and ingested for red seedless grapes approximately 2 hours ago. should vomiting be induced? Is it best that I monitor him? He appears to be a bit more quiet then usual also, my mother gave him chicken scraps at the same time that contained no bones

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on September 23rd, 2018

Thank you for contacting Pet Coach with your question about Soja. I do not recommend including vomiting at home. This is because hydrogen peroxide, which is frequently used at home by owners to induce vomiting, can and does cause gastritis and esophagitis often worse than the initial problem. In addition, given that it's been two hours, it's past the time to induce vomiting. Depending on how many grapes Soja ate, he may be fine. The only problem with grapes is that we don't know the amount needed to cause kidney failure. I would monitor him, and take him into the vet first thing in the morning for baseline blood work to get kidney values. Repeat this blood work in four days to check how his kidneys are functioning. If you see signs such as vomiting, lethargy, weakness, increased or decreased thirst, or increased or decreased urination, take him into a vet immediately. Best of luck, I hope this helps!

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