We developed ADVECTA products to help pets and pet owners everywhere lead healthier, happier lives. That's why we offer a diverse line of high-quality flea and tick control products ranging from spot treatments to pest control for your lawn. Without protection, fleas and ticks pose a danger to even the biggest dog breeds but ADVECTA 3 for X large dogs offers a solution. Fleas, ticks and other biting insects can do more than cause uncomfortable itching and scratching. Without treatment, flea infestations and insect bites can lead to complications for your pet. ADVECTA 3 for X-large dogs is a simple, convenient spot treatment that protects your dog from a wide range of biting insects ADVECTA 3 contains the same active ingredients used in K9 Advantix II to provide fast relief.