General description Beaphar FIPROtec COMBO Spot On for Large Dogs is an effective treatment that contains fipronil and the insect growth regulator S-methoprene. This product not only kills adult fleas, ticks, and biting lice but also disrupts the flea life cycle, preventing exposed eggs and larvae from developing in your home for up to eight weeks. Technical specifications Kills adult fleas for up to eight weeks Kills ticks for up to four weeks Suitable for dogs over 8 weeks of age Weight range: 20-40 kg Usage Suitable for use on pregnant and lactating bitches Establish a regular flea control routine for dogs and the household Particularly important for dogs that spend a lot of time outdoors