K9 Advantix II for Extra Large Dogs (over 55 lbs) Blue Box

Monthly Topical Flea, Tick & Mosquito Defense

Product Description

K9 Advantix II for Extra Large Dogs provides comprehensive monthly protection against fleas, ticks, mosquitoes, biting flies, and lice through waterproof topical application. This veterinarian-recommended formula combines imidacloprid, permethrin, and pyriproxyfen to kill parasites on contact, break flea life cycles, and provide four weeks of broad-spectrum defense for dogs over 55 lbs.

Ingredients

Active Ingredients

Imidacloprid 8.8%, Permethrin 44.0%, Pyriproxyfen 0.44%

Inactive Ingredients

Propylene glycol, benzyl alcohol, polyethylene glycol, and other inert ingredients

Variants/Types

How to Use

Dosage & Administration Instructions

• Weight Verification: Confirm the dog weighs over 55 lbs for the extra-large formulation.
• Tube Preparation: Cut pouch, remove tube, peel foil, twist cap to break seal.
• Application: Part fur from shoulders to tail base, apply directly to skin.
• Distribution: Squeeze contents in 3-4 spots to prevent run-off from a single location.
• Monthly Schedule: Reapply every four weeks for continuous year-round protection.

Additional Information

Precautions

• Age Restriction: Only use on dogs and puppies seven weeks or older.
• Species Warning: Never use on cats; permethrin is extremely toxic to felines.
• Child Safety: Keep children away from treated dogs until the application site dries completely.
• Skin Sensitivity: Monitor for irritation; consult a veterinarian if reactions persist beyond three days.
• Aquatic Toxicity: Prevent treated dogs from entering surface water for 48 hours after application.

Possible Side Effects

• Skin Irritation: Redness, scratching, or discomfort may occur at the application site.
• Gastrointestinal Upset: Vomiting or diarrhea reported in rare cases following application.
• Hair Changes: Greasy or stiff hair texture may develop temporarily at the site.
• Lethargy: Temporary decreased energy levels may be observed occasionally in treated dogs.

Benefits

• Contact Kill: Eliminates parasites on contact without requiring bites or feeding.
• Broad Spectrum: Controls fleas, ticks, mosquitoes, biting flies, and lice effectively.
• Flea Lifecycle: Kills all flea stages, including eggs, larvae, and adults, completely.
• Waterproof Formula: Maintains effectiveness after bathing, swimming, or rain exposure.
• Four-Week Protection: Single application provides continuous defense for full month.

Shipping & Return

We offer ground, express, priority, and international delivery; see our shipping policy for details.

For return instructions or product concerns, please refer to our detailed refund policy.

Frequently Asked Questions

Q1: What parasites does K9 Advantix II Extra Large Dogs protect against?

Ans: K9 Advantix II Extra Large Dogs is formulated to kill and repel fleas, ticks, mosquitoes, biting flies, and lice. The topical treatment works on contact, helping reduce parasite bites and prevent infestations for dogs weighing over 55 lbs.

Q2: How often should K9 Advantix II Extra Large Dogs be applied?

Ans: K9 Advantix II Extra Large Dogs should be applied once every 30 days. Monthly application helps maintain continuous protection against fleas, ticks, and mosquitoes when used consistently according to the manufacturer’s labeled directions.

Q3: How quickly does K9 Advantix II start working?

Ans: K9 Advantix II begins killing fleas shortly after application. The active ingredients work on contact, meaning parasites do not need to bite to be affected, helping reduce discomfort and pest exposure within the first day of treatment.

Q4: Can K9 Advantix II Extra Large Dogs be used on puppies?

Ans: K9 Advantix II Extra Large Dogs is approved for dogs and puppies 7 weeks of age and older that weigh more than 55 lbs. Always follow age and weight guidelines listed on the product label before application.

Q5: Is K9 Advantix II safe for dogs that swim or bathe regularly?

Ans: Yes. Once the application site has dried, typically after 24 hours, K9 Advantix II remains effective even if the dog swims or is bathed, making it suitable for dogs with active outdoor lifestyles.

Q6: Can K9 Advantix II be used on cats?

Ans: No. K9 Advantix II contains permethrin, which is toxic to cats. Cats should not be treated with this product and must be kept away from dogs until the application site is completely dry.

Q7: What should I do if my dog shows side effects after application?

Ans: If a dog experiences persistent irritation, unusual behavior, vomiting, or other concerning symptoms after using K9 Advantix II, discontinue use and consult a veterinarian promptly for guidance and further evaluation.

Q8: How long does one application of K9 Advantix II last?

Ans: Each application of K9 Advantix II provides up to 30 days of protection when applied correctly. Reapply monthly to maintain consistent flea, tick, and mosquito control throughout the year.