Safe and effective flea and tick treatments include topical spot-ons, chewable tablets, shampoos, and collars. Many dog flea medicines require a prescription from your veterinarian, but others are ...

Best fast-acting Comfortis Chewable Tablets are fast-acting and good for cats that can't tolerate topical flea preventives. Spinosad, the active ingredient in Comfortis, starts to work within 30 ...