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My puppy ate cotoneaster. Is this why she's vomiting and has diarrhea?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | spayed | 10 months and 3 days old | 20 lbs

Dog 20lbs sick 3 times + diarrhea multiple times. Not lethargic. Only 9 mos old. Neighbors bushes are cotoneasters. Is this the possi le cause of GI upset? Just had a more solid poop and is thirty amd humgry like normal. Next steps?

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on February 12th, 2017

The berries of the cotoneaster is toxic to dogs, so it is possible cause of Jazzy's vomiting and diarrhea. It's a good sign that she just had a more solid poop and is thirsty and hungry. I will give you a home remedy to try to see if that helps before you have to take her into the vet. Withhold food for 12-24 hours, then feed a bland diet of boiled white meat chicken (no bones) and white rice in small amounts several times a day for a couple of days. Then slowly add back in her normal diet. If the vomiting continues in the absence of food, she vomits the bland diet, she has diarrhea on the bland diet, she stops drinking water, starts vomiting water, or becomes very lethargic, she will need to see a vet right away.

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