Frontline Combo Dog M is a fluid against fleas, ticks and biting lice. The drops also have a dual function. It also works against flea eggs, larvae and the development of new pupae. Frontline Combo Dog protects against fleas on your dog and in its environment. - Stops the development of flea eggs, larvae and pupae. - Your dog is protected against fleas for 8 weeks and against ticks for 4 weeks. - For dogs 10 to 20 kilos - Packages with 6 dosage(s). - Read the package leaflet before use.