Our vet switched Scooter to it from K9 Advantix and we love it. It is so much easier to give him the pill. He used to rub the liquid stuff off his back as soon as I put it on him. One time, even though he had been treated, he got fleas. Long story short, that is when the vet switched us. I won't switch him back. I really like Comfortis. Our vet also recommended Sentinal which I now use too. |