When in doubt always ask your veterinarian before giving your cat a new flea medication especially if it is designed for a dog. Fortunately there are ways to prevent accidental chemical exposure in cats. - Answered by a verified Dog Specialist.
Cats are much more sensitive than dogs are to pyrethrins and because the level of pyrethrins will be higher in a flea repellent that has been formulated for dogs cats will. Take quick action poisoning with some types of flea products can result in rapid death of your pet. They help themselves to your cats blood and offer nothing. Fleas are the ultimate freeloaders.