Flea And Tick Prevention & Treatment For Dogs 21-55 Lbs., 4 Doses

K9 Advantix II is a prescription-free topical flea and tick treatment designed for large dogs weighing 21–55 lbs. This veterinarian-recommended formula kills fleas, ticks, lice, and mosquitoes on contact, eliminating the need for parasites to bite before dying. It also repels biting flies and disease-carrying ticks, providing comprehensive protection against common pet parasites.

Each application delivers up to 30 days of protection, even after bathing or swimming thanks to its waterproof formula. The four-dose pack provides a full month's worth of monthly treatments, making it convenient for ongoing pest prevention. Safe for puppies 7 weeks of age and older, K9 Advantix II is an easy-to-use solution that prevents flea and tick infestations before they develop.

Features and Benefits

• Kills on Contact: Uses Imidacloprid, Permethrin, and Pyriproxyfen to eliminate fleas, ticks, lice, and mosquitoes without waiting for parasites to bite.
• Waterproof Protection: Maintains effectiveness for up to 30 days even after bathing or swimming, ideal for active dogs.
• Prescription-Free: Available without a veterinary prescription for convenient over-the-counter purchase.
• Prevents Development: Stops flea and tick eggs and immature forms from developing into adult parasites.
• Long-Lasting Formula: One application provides a full month of protection, with four doses included per package.
• Odorless Application: The liquid formulation is odorless and easy to apply directly to your dog's skin.

Specifications

• Brand: Bayer
• Product Type: Topical liquid treatment
• Size: Dogs 21–55 lbs.
• Count: 4 monthly applications
• Active Ingredients: Imidacloprid, Permethrin, Pyriproxyfen
• Application Frequency: Monthly
• Age Requirement: 7 weeks and older
• Waterproof: Yes

Descriptions are AI-generated. For accurate measurements, please call the store to confirm.