Beaphar FIPROtec Spot-On for Large Dogs is an effective and affordable veterinary strength medicine to control fleas and ticks on your dog. Containing the well-known active ingredient fipronil, Beaphar FIPROtec Spot-On for Large Dogs effectively kills fleas for up to five weeks and kills ticks for up to four weeks. Suitable for dogs from 8 weeks of age and weighing 20-40kg. All pets are at risks from fleas, even dogs that don't go outside very much, as we can bring them in on our clothes. It is important to establish a regular flea control routine for your pets and your home. 95% of the flea's lifecycle is in the home. When tackling a flea problem, in addition to treating your pet always use a household insecticide, such as Beaphar FLEAtec or Beaphar Extra Long Lasting Household Flea Fogger for your home.