I've noticed that flea/tick topical treatments contain different ingredients and prices sometimes vary greatly. Are there ingredients that are more or less harmful to my cats and dogs? My primary concern is to do no harm.
It is very important to use products that are labeled specificly for your type of pet. You do not want to use a dog flea product on a cat and vise versa. Pyrethrins are toxic to cats so any flea product with pyrethrins should not be used in cats. vetcare`