Advantage II for Large Dogs, manufactured by Bayer Animal Health, kills all stages of the flea lifecycle and kills chewing lice. Simply apply once a month and your dog is protected, even through regular bathing and swimming. Requires no prescription, so there's no inconvenient trip to the vet's office for you.

• One treatment prevents further flea infestation for at least four weeks
• Is a convenient, monthly application
• Kills fleas within 12 hours of application
• Treats, prevents and controls lice infestations
• Continues working even after your pet swims or is given a bath
• Is fragrance free
• Active Ingredient (% By Weight): Imidacloprid 9.10%, Pyriproxyfen 0.46%; Other Ingredients: 90.44%

Note: This product may require up to 2 additional days for order processing prior to shipping