Shop / Products / Elanco K9 Advantix II Medium Dog K9 Advantix II $31.99 Elanco K9 Advantix II Medium Dog Quantity Size 11-20 lbs - 2 Month 11-20 lbs - 4 Month 11-20 lbs - 6 Month 11-20 lbs - 2 Month 11-20 lbs - 4 Month 11-20 lbs - 6 Month Ship to me Pickup in store Set your store for inventory and store pickup details Zip Code Search Add To Cart Information Ingredients K9 Advantix II for dogs Medium Dog (11 to 20-lbs. Teal Color Code) REPEL-and-kill pest protection. Protesting pups of the world, unite! “We say please! No more fleas! We say please! No more fleas!” K9 Advantix has heard their cries, giving them a flea-free life and more! Advantix II for dogs doesn’t just kill fleas, it gets rid of disease-causing ticks, mosquitoes, and biting flies, and lice, too! Next stop: a world without mailmen. NOT FOR USE ON CATS Why We Love It • Kills fleas during every stage of life • Topical solution won’t wash off after swimming or baths • Provides broad-spectrum protection • Monthly treatment that’s easy to apply - REPELS and kills ticks - REPELS and kills fleas - REPELS and kills mosquitoes - REPELS and prevents blood-feeding by biting flies. - Kills chewing lice Imidacloprid 1-((6-Chloro-3-pyridinyl) methyl)-N-nitro-2-imidazolidinimine: 8.8% by weight, Permethrin: 44.0% by weight, Other Ingredients: 47.2% by weight Customers also liked Customer Reviews