When it comes to controlling fleas and ticks, Frontline Flea Control for Dogs is the #1 recommendation of veterinarians for flea and tick control for dogs and cats. Frontline Flea Control for Dogs offers long-lasting flea and tick control, killing up to 100% of fleas on your pet within 18 hours and up to 100% of ticks on your pet within 48 hours. Best of all, research shows that Frontline Flea Control products work for an entire month to help keep your pet free of fleas.