Instruct: Classify the given Amazon review as either positive or negative.
Query: Consumer Beware

I will never purchase 'Angel Eyes' again. This product made our dog sick. She had cramping and diarrhea for days after only two doses. I would rather put up with the discoloration of her fur than seeing her suffer like she did. If I had known this side effect was probable I wouldn't have purchased this product. I would have selected zero stars, but I had to select one star in order to submit this review. As far as I'm concerned 'Angel Eyes' doesn't deserve any stars.