Frontline for Dogs is used to effectively and rapidly kill fleas. Frontline for Dogs is also used in the prevention of infestations by fleas and ticks and can be used in puppies from 8 weeks of age and weighing at least 2kg. Frontline for Dogs is available in four sizes Frontline for Small Dogs, Frontline for Medium Dogs, Frontline for Large Dogs, Frontline for Extra Large Dogs and in packs of 3 pipettes or 6 pipettes in each size.