HI EVERYBODY 

Here's a letter from a vet friend about the grapes. Sorry I didn't have ALL the 
information before I sent my email. 

(Thanks Janya) 

Betty 

Betty -- here's a letter about grape/raisin poisoning from another vet.  
As you can see, they would have to eat a  lot of grapes...  Jayna 


Grape and raisin poisonings in Dogs 

Recently, there was a letter in the AVMA Journal from Dr. Gwaltney-Brant and 
others at the ASPCA Animal Poison Control Center discussing grape and raisin 
poisoning in dogs. Apparently, grapes and raisins can be toxic to dogs when 
ingested in large quantities. 

The grapes and raisins came from varied sources, including being eaten off 
the vine directly. The dogs exhibited gastrointestinal signs including 
vomiting and diarrhea and then signs of kidney failure with an onset of 
severe kidney signs starting about 24 hours after ingestion of the grapes 
or raisins. The amount of grapes eaten varied between 9oz. and 2 lbs., which 
worked out to be between 0.41 and 1.1 oz/kg of body weight. Two dogs died 
directly from the toxicity, three were euthanized due to poor response to 
treatment and five dogs lived. Due to the severity of the signs and the 
potential for death, the veterinarians as the poison control center advocate 
aggressive treatment for any dogs suggested of ingesting excessive amounts of 
grapes or raisins, including inducing vomiting, stomach lavage (stomach pumping) 
and administration of activated charcoal, followed by intravenous fluid therapy 
for at least 48 hours or as indicated based on the results of blood tests for kidney 
damage. 
  

I have fed my dogs a few grapes every now and then for years, so I don't think there 
is a need to panic if a dog eats three or four grapes but if the whole bunch is missing 
from the table one day, it would be good to think about watching for any signs of a 
toxic reaction. 

Michael Richards, DVM 
6/5/2001 

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