4. Intended for Dogs or Cats?
There are times when dogs and cats can take the same medication, under a vet's supervision, to resolve an issue. This is definitely not one of them. Not only are some flea and tick medications specifically formulated to be effective for dogs (or vice versa); there are certain ingredients that can actually be harmful, even deadly, to cats. "Cats should never be given products designed for use on dogs," says Dr. Jennifer Kvamme, DVM, "nor should you use your cat products on your dog." Always read flea and tick control products labels carefully and only use as directed. If you have any doubts, ask your veterinarian.