Advantage 400 is for the treatment of flea infestations in cats, dogs and rabbits and for the treatment of biting lice in dogs. Advantage contains imidacloprid, which acts on the nervous system of the flea to cause paralysis and subsequent death.
Advantage 400 stops biting fleas in three to five minutes and starts to kill adult fleas within an hour after application. Advantage kills fleas before they lay eggs, so their life cycle is broken at multiple stages. It also kills flea larvae within 20 minutes of contact.
One treatment prevents further flea infestation on dogs for up to four weeks, 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 in the cat and the dog. The treatment should be repeated after 4 weeks.
Advantage 400 does not kill ticks in dogs. Advantage 400 for dogs weighing 25-40kg.