Frontline Spot on Top for DogsFrontline Top Spot is a topical spot-on treatment that treats and prevents flea infestation, brown dog tick, American dog tick, lone star tick, deer ticks and chewing lice on dogs and puppies. It also assists in control of Sarcoptic mange infestations. It has a swift onset of action and controls re-infestations due to newly acquired adult fleas for one full month. It is recommended for puppies and dogs at least 8 weeks of age along with breeding, pregnant or lactating dogs.