Frontline Plus for dogs is a topical 'spot-on' application for the treatment and prevention of flea infestation, brown dog tick, the American dog tick, lone star tick and deer ticks (the major carrier of Lyme disease) and biting lice on dogs and puppies. Frontline Plus has a rapid onset of action and kills re-infestations with newly acquired adult fleas for up to 8 weeks. Frontline Plus for dogs also prevents the development of flea eggs, larvae and pupae produced by any adult fleas acquired for up to 8 weeks after flea treatment. Frontline Plus for dogs can be used as part of a treatment strategy for the control of Flea Allergy Dermatitis in dogs. It can be used on puppies from 8 weeks of age and is safe to use on breeding, pregnant or lactating animals. It is waterfast so you can take you dog for a wash or for a swim and Frontline Plus will remain as effective against fleas and ticks.