Advantage 250 Spot-On for Dogs 10-25kg - 4 Pipettes (NFA-VPS) (Canine) For the prevention and treatment of flea infestations on cats and dogs, and for the treatment of biting lice (Trichodectes canis) on dogs. - For the treatment of flea infestations on pet rabbits. - Fleas are killed within one day following treatment. - One treatment prevents further flea infestation for up to four weeks on dogs, three to four weeks on cats and up to one week on pet rabbits. - The product can be used as part of a treatment strategy for Flea Allergy Dermatitis (FAD) in the cat and the dog, where this has been previously diagnosed by a veterinary surgeon. Advantage must not be administered to dogs less than 8 weeks old