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Review title: ** TOXIC **
Product review: I had used Frontline for years without adverse reactions but the first time I used Frontline Plus, my ten year old Havanese became lethargic and lost her appetite for several days. I was concerned, but we had recently moved to a warm climate and the flea problem was daunting, so I used it again on her 32 days later. Again she became lethargic and this time more quickly and severely than before. So after keeping an eye on her for about 10 minutes, I decided to wash it off of her. She immediately perked up and seemed better, although not normal. The following day, she had diarrhea and a decreased appetite. The second day (today) she has had even worse diarrhea and a bit of vomiting. She wanted to go for a walk, but slept most of the rest of the day. I won't use this product again.
