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Title: Do not buy!!
Review: I bought this from Petco, because I was being cheap and didn't want to pay more money for Advantage or Frontline. BIG MISTAKE!It left a gigantic greasy mess all over my cat's back, but no big deal, as long as it works, right? Well two days later and the fleas are still there, NO effect at all, and my cat has been vomiting twice a day, plus has been acting very erratic.I am so upset that I purchased this, that Petco sells it, and that Hartz is allowed to make this awful product.
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