Veterinary toxicologists at the Animal Poison Control Centre are currently investigating cases where dogs have developed kidney failure after ingestion of large quantities of grapes and raisins. The veterinary toxicologists are attempting to determine the causative agents or disease processes. Pet owners whose dogs have ingested large quantities of grapes or raisins, should call their vet immediately!

"STRANGE FRUIT? REPORTS ON CASES OF CANINE KIDNEY FAILURE FROM GRAPES AND RAISINS
 

In response to reports of dogs developing kidney failure after eating large amounts of grapes or raisins, the Animal Poison Control Centre  conducted a review of all related cases in its database. Veterinary toxicologists found that all of the companion dogs developed vomiting within six hours of ingestion; the estimated amounts of grapes or raisins eaten ranged from nine ounces to two pounds. Other commonly reported signs included diarrhoea, anorexia, lethargy and abdominal pain, and all of the dogs developed evidence of kidney dysfunction. 'Whether the ingested grapes were purchased fresh, didn't seem to matter, nor did the brand eaten' Clinical signs lasted for several days--sometimes even weeks. And after aggressive treatment, which included intravenous fluids and medications, half of the dogs recovered, while the others died or had to be euthanised.

At present, the exact role of grapes or raisins in these cases--what exactly is the toxic component--is still unclear. But a dog who has ingested large amounts can now be diagnosed and treated successfully. The first line of defence is decontamination, and the dog should be hospitalised and placed on IV fluids. If the blood work appears normal after three days, it's unlikely that kidney failure will occur; if there is evidence of renal failure, more aggressive treatment--including fluids, medication and possibly dialysis--is called for.

If you suspect that your dog has ingested large quantities of raisins or grapes--or any other potentially dangerous substance--Call Your Vet!

ARE TOO MANY GRAPES AND RAISINS BAD FOR DOGS?

Several dog owners said that they would no longer give their pets the occasional grape or raisin as a treat. There are many people who have decided to do the same thing, but no one has reported poisoning from their pets ingesting the occasional single grape or raisin. The affected dogs involved ingestion of 2 ounces to 4.4 ounces."

One dog-owner was concerned that the few slices of banana he regularly shares with his basenji at breakfast could be harmful to her. Not to worry--"Bananas are okay.

An 11-year-old dog, who has had fresh fruit and veggie snacks--including grapes, lettuce and carrots--throughout his life. "After all the years of giving him grapes as treats, could he still possibly get kidney dysfunction?" there haven't been any reports of dogs developing long-term effects from small ingestion of grapes--one or two as treats, ....over the years."

 There has been one case of kidney failure in a cat who ate raisins.

For more information on poison prevention, visit APCC online.

Note: Contact your Vet Immediately if you think your pet has eaten chocolate or any part of these plants. This list is not exhaustive and your pet may have a sensitivity or allergy to a plant that is not on the list.

Researched and Produced by ©1998 Kavishi Shar-Pei