Advantage II 6-Month Dogs Over 55 Lbs (Blue)

Kills adult fleas, eggs and larvae
Remains effective even after swimming or shampooing
One treatment prevents further flea infestation for at least four weeks Biting fleas are more than just a nuisance for your dog. Left unchecked, they can cause serious disorders such as flea allergy dermatitis, secondary skin infections, tapeworms, and even anemia. This topical flea treatment lets you stop fleas before they become a problem. Used just once a month, it begins working in minutes, killing 98 to 100 percent of the fleas on dogs within 12 hour More »