Why Are Grapes Toxic to Dogs?
The fact that raisins and grapes can be toxic to dogs is well documented. Although the exact substance that causes the toxic reaction is not yet known, dogs should not eat grapes and raisins because even small amounts can prove to be fatally toxic for a dog.
Dogs of any age, breed, or gender may be affected. Grapes and raisins (dried grapes) are bad for dogs because one of the most serious complications of grape/raisin toxicity is acute (sudden) kidney failure with lack of urine production (anuria). However, kidney failure is not seen in all dogs after ingestion of grapes or raisins, and again, the reason why some dogs are affected excessively while others are not is still being studied.
Symptoms and Types of Grape and Raisin Toxicity in Dogs
- Vomiting and/or diarrhea – often within a few hours; after 24 hours of ingestion vomit and fecal contents may contain pieces of grapes or raisin
- Loss of appetite
- Lethargy, weakness, unusual quietness
- Abdominal pain
- Oliguria (passing only a small amount of urine)
- Anuria (complete cessation of urine)
- Kidney (renal) failure and death
Grape and/or raisin ingestion – even small amounts can be toxic to dogs.
This is an emergency needing immediate treatment. If you are positive that your dog ingested grapes or raisins, you will need to induce vomiting as soon as possible, before the toxins in the fruit can be absorbed.
Try to induce vomiting with a simple hydrogen peroxide solution of one teaspoon per five pounds of body weight – with no more than three teaspoons given at once. If vomiting does not take place within ten minutes of the first administration, you may try again, using the same amount. This method should not be given any more than three times, spaced apart at ten minute intervals.
If your dog has not vomited after the third dose, do not use it, or anything further, to try to induce vomiting. Do not use anything stronger than hydrogen peroxide without your veterinarian’s assent, and do not induce vomiting unless you are absolutely sure of what your dog has ingested. If your dog has already vomited, do not try to force more vomiting.
Read more about Grape and Raisin Toxicity in Dogs at http://www.petmd.com