Originally Posted by krazyaboutkatz
. . . I also buy the largest dog advantage and then I measure it for my cats. This saves me a lot of money and it's been preapproved by my vet. In fact one of my former vets was the one who recommended doing this to help save me money.

Quote Originally Posted by AvaJoy View Post
I'm surprised that a vet would recommend such a practice, as I have always heard that using DOG flea/tick meds on a CAT would cause severe illness and could prove fatal.

For years I have used Frontline Plus exclusively on my cats but only during the mild months. Once the weather turns frigid I discontinue until springtime. It costs a small fortune to do so many cats, but is worth it as I have never had a flea or tick infestation.
I've had a vet do the same thing also. The large dog flea medicine is in the same percentage as the cat flea medicine. The dog just gets up to 5 times more. I can't remember right now. So I used a syringe sans needle with some left over. I had two cats at the time so I am thinking I might have had one dose left over. The stuff does not evaporate either. It saved me a lot of money when I was out of work.