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Review title: Not like it used to be
Product review: I have been using Frontline for years, however recently it has not been working so well. I can give my dog and two cats the treatment each month and it does NOT last for the whole month. In fact when I brought up this complaint to my vet, he said that Frontline is only promised to work for 21 days and yet they tell us to apply it once a month!! Once I finish this box by applying it every 21 days I plan on switching to something a little more reliable.
