Beaphar FIPROtec Spot-On for Medium Dogs kills fleas and ticks on medium dogs, and continues to kill fleas for up to five weeks and ticks for up to four weeks. Dogs who spend a lot of time outside are especially at risk from fleas and ticks. It is important to establish a regular flea control routine for dogs and the household. Suitable for dogs over 8 weeks of age and weighing between 10-20kg. Always use a household insecticide when tackling a flea problem.