- Vomiting and diarrhea are often the first clinical signs of grape or raisin toxicity. They often develop within a few hours of ingestion. Pieces of grapes or raisins may be present in the vomitus or stool. Further symptoms include weakness, not eating, increased drinking, and abdominal pain.
There is no specific antidote for grape or raisin toxicity. Treatment focuses on removing any remaining fruit to prevent further absorption of toxin (decontamination) and supportive care. For recent ingestion with no clinical signs of illness, your veterinarian will induce vomiting.
Vomiting and diarrhea are the initial signs of grape toxicity, beginning about 6-12 hours after ingestion. This is followed by general lack of energy, weakness, dehydration, thirst, and failure to produce an adequate amount of urine. Fatal kidney dysfunction can develop in 1-3 days.

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.
Grape poisoning in dogs can manifest through a range of symptoms, which may vary depending on the amount and type of grapes consumed. The most common symptoms include vomiting, diarrhea, lethargy, and loss of appetite.

Signs of grape poisoning in your dog can include a range of symptoms from vomiting and diarrhea to lethargy, weakness, excessive thirst, increased urination, loss of appetite, and abdominal pain.
Monitor closely for vomiting, diarrhea, and lethargy within 12-24 hours of ingestion: These are early signs of toxicity. Kidney failure is a serious potential complication: If signs of grape poisoning persist, seek veterinary attention immediately. Dogs may not vomit immediately after eating grapes: Monitor closely for other signs of toxicity.

Symptoms may include vomiting, loss of appetite, diarrhea, and lethargy. More severe signs are not seen until 2448 hours after ingestion often after acute kidney damage has already begun.
- The earliest signs of grape toxicity in dogs often include vomiting and diarrhea, typically occurring within a few hours of ingestion. Lethargy and a loss of appetite may also be observed shortly after.