K9 Advantix II Extra Large Dog Over 55 lbs 2 Doses – Flea & Tick

K9 Advantix II Extra Large Dog Over 55 lbs – Flea & Tick Treatment – 2 Doses

Monthly Flea, Tick, Mosquito & Biting Fly Protection for Extra Large Dogs

K9 Advantix II Extra Large Dog Over 55 lbs Flea & Tick Treatment is a monthly topical flea treatment for extra large dogs weighing over 55 lbs. The 2-dose package provides two months of scheduled protection and helps control fleas, ticks, mosquitoes, and biting flies when used according to label directions.

The spot-on flea treatment is applied directly to the dog's skin, allowing the active ingredients to work against common external parasites during the monthly protection period.

Designed for active large breed dogs, K9 Advantix II Extra Large Dog offers convenient monthly flea and tick prevention without the need for daily applications. The waterproof formula makes it a practical choice for dogs exposed to outdoor environments, rain, and regular activity.

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Key Benefits

• Extra large dog flea and tick treatment designed for dogs weighing over 55 lbs.
• Provides 30 days of flea and tick protection with one monthly topical application.
• Helps control fleas, ticks, mosquitoes, and biting flies when used according to label directions.
• Works through contact with the treated dog’s skin and coat without requiring pests to bite.
• Convenient 2-dose package for two months of scheduled protection.
• Suitable for large breeds, giant breeds, and dogs with higher outdoor exposure.

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How It Works

K9 Advantix II Extra Large Dog Over 55 lbs works against fleas, ticks, mosquitoes, and biting flies through its topical formula. The active ingredients help kill adult fleas and ticks while also helping control flea eggs and larvae to reduce the chance of reinfestation.

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How to Use

• Apply one tube directly to the skin at the base of the dog's neck.
• Separate the hair until the skin is visible before applying.
• Squeeze the entire contents onto the skin as directed on the label.
• Do not allow children or other pets to contact the application area until dry.
• Repeat every month for continued flea and tick protection.

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Product Details

Brand: K9 Advantix II

Original Manufacturer: Bayer Animal Health (now part of Elanco)

Pet Type: Dog

Pet Size: Extra Large (Over 55 lbs)

Form: Topical liquid

Quantity: 2 doses

Protection Duration: Up to 30 days per dose

Minimum Age: 7 weeks and older

EPA Reg. No.: 11556-144

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What’s Included

2 tubes (2-dose supply) of K9 Advantix II Extra Large Dog Over 55 lbs

New, sealed product in original manufacturer packaging.

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Warnings & Safety

• For use on dogs only. Do not use on cats.
• Do not use on puppies under 7 weeks of age.
• Keep cats away from treated dogs for 24 hours after application.
• Avoid contact with eyes and wash hands after use.
• Keep out of reach of children.

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You May Also Like

• K9 Advantix II Large Dog 21–55 lbs – For large breeds needing monthly flea & tick protection tailored to mid‑size weight ranges.
• K9 Advantix II Medium Dog 11–20 lbs – Suitable for medium breeds requiring balanced, weight‑specific parasite prevention.
• K9 Advantix II Small Dog 4–10 lbs – Designed for toy and small breeds that need gentle, precise flea & tick coverage.
• Seresto Large Dog Flea & Tick Collar – Long‑lasting, low‑maintenance 8‑month protection for active outdoor dogs.
• Frontline Plus Extra Large Dog 89–132 lbs – An alternative topical option for households rotating treatments or managing multiple dogs.

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Disclaimer:

This product is intended for animal use only. Always follow label instructions. Results may vary depending on environment and level of infestation.

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Authenticity Guarantee:

We guarantee that all K9 Advantix II sold on our website are authentic, factory-sealed products in their original retail packaging.