Can Advantage be used to prevent flea infestations on my pet?
Early prevention is key to keeping pets from infestation. Starting a regular flea control regimen like Advantage before the beginning of flea season allows cats and dogs to be healthy and happy all year. Advantage alone can kill fleas and keep further populations from developing, because it effectively breaks the flea life cycle, attacking it in multiple stages. Fleas that jump onto an Advantage-treated pet start dying within one hour and all are killed within two hours.