ADVANTAGE II Cat Flea Control 9+ lbs Purple 12 Month

How Advantage II WorksUse Advantage II monthly to kill fleas on your cat. One of its active ingredients, imidacloprid, acts on the nervous system of the flea to cause paralysis and subsequent death. The other active ingredient of Advantage II is pyriproxyfen, an insect growth regulator (IGR) that, in combination with imidacloprid, kills all flea life stages on the treated cat and its More »