Grapes contain a toxin that may cause kidney failure in dogs. Grapes, raisins, and grape containing products can all make a dog very sick when ingested. This is called grape poisoning or grape toxicity.
Grape and raisins toxicity dogs can cause sudden kidney failure. Learn symptoms, when to induce vomiting with 3% peroxide, charcoal dosing, and when to see a vet.

Overview Grape and raisin toxicosis happen when a dog ingests fruits from the Vitis genus. Eating grapes, raisins, Zante currants, or sultanas can cause acute kidney injury (AKI) in dogs. The exact amount of fruit that causes toxicity is unknown, and some dogs may become sicker than others. Since its impossible to predict which dog will be affected or how much fruit will cause signs of ...

Ingestion of grapes, raisins, and tamarinds has been associated with development of GI upset and anuric renal failure in some dogs. Cases reported to date have been in dogs; anecdotal reports exist of renal failure in cats and ferrets after ingesting grapes or raisins, although there are no published case reports in these species. Pathogenesis of Grape, Raisin, and Tamarind (Vitis spp ...
Grape seed extract appears to be innocuous, but the safety of grape juice has yet to be determined, and at this point, it is rec-ommended that administration to pets be avoided. Sev-eral cases have been documented in dogs, and there are anecdotal reports of toxicity in cats.