Treatment of Grape Toxicity in a Dog. If your dog has ingested grapes or raisins, treatment focuses on preventing toxin absorption and protecting the kidneys. Depending on timing and clinical signs, veterinary care may include
VCA Animal Hospitals: Grape and Raisin Toxicity in Dogs.
Understanding Grape Toxicity in Dogs. Grape toxicity in dogs is a serious and often emergency-level situation. The toxic reaction can vary widely among dogs. Some may be unaffected, while others may develop acute kidney failure from just a small amount.

Grapes, raisins, sultanas, & even currants are toxic to your dog! Ingestion of a small amount of grapes, or raisins, result in severe, acute kidney failure.If you think your pet has eaten something potentially toxic, call Pet Poison Helpline or seek immediate veterinary treatment.
Boy holding grapes with his dog looking on. Grape toxicity in dogs may be due to tartaric acid, which causes kidney failure. Time will tell, but this could be one of the missing pieces of the puzzle. Hopefully, additional studies will continue to provide insight into how grape and raisin toxicity occurs.

Treating Grape Toxicity in Dogs.Vets treat dogs eating even one grape as a severe situation because of this variability, says Fox. Leicester explains that numerous factors might influence a grapes toxicity, such as the type of grape and harvesting.