Beaphar FIPROtec Spot-On Solution for Large DogsBeaphar FIPROtec Spot On Solution for Large Dogs is for the treatment and prevention of flea (Ctenocephalides felis) and tick (Ixodes ricinus) infestations on large breed dogs over the age of 2 months and weighing between 20 to 40kg. Each easy to use 2. 68ml pipette contains 268mg of the active ingredient fipronil and will remain active against fleas for up to 5 weeks, and ticks up to 4 weeks. Application: Part the fur between your dogs shoulder