Instruct: Classify the given Amazon review into its appropriate rating category
Query: Didn’t work for my dogs

We usually buy another brand, but we gave this one a try because it doesn’t require refrigeration. Unfortunately, it apparently didn’t agree with my two small dogs. On day one, one had an explosive diarrhea over night, but I didn’t attribute it to this product. On day 2, they both developed diarrhea. Then, we stopped giving this to them as directed by the vet and, sure enough, their diarrhea went away immediately. Maybe it was a bad batch, but it is going right to trash.