That is even more worrying. I was a little less than enthusiastic about the product, because I still pick ticks off her even after Front Line. The Vet said, well yeah, the ticks die after they bite a Front Lined dog. I'm like, WTF? I was led to believe that FL would prevent my dog from getting bitten by ticks. If that's the case, why am I blowing money on a worthless product that doesn't eliminate my physical exam of my dog every time she goes out to hunt?