[Maximo]

I would contact the poison hotline and ER vet:

Symptoms appear 6-24 hours after the dog eats raisins or grapes (average is 12 hours). Initially, symptoms are gastro-intestinal signs, followed by kidney problems.
Vomiting is usually the primary sign, with diarrhea, depression/lethargy, anorexia, colic, dehydration and sharply decreased urine output. The course of the toxicosis is anywhere from 3 days to 3 weeks. Dogs with kidney problems have a guarded to poor prognosis.
The good news is that it is treatable, if you see any symptoms, take your dog to the vet clinic immediately!!!


If the raisins or grapes have been ingested within 2-3 hours, vomiting should be induced followed by activated charcoal to limit further absorption. Treatment is based on preventing further absorption if appropriate and maintaining urine output & electrolyte balance. The vet may also give an osmotic cathartic (to speed up GI passage of toxin without absorption). The animal should receive an isotonic saline solution IV at twice maintenance rates for 48 hours. Anti-nausea medication, diuretics and peritoneal dialysis may be needed in some cases.