Elanco K9 Advantix II 4-Month Supply Topical Flea, Tick & Mosquito Treatment & Prevention for Large Dogs 21-55 lbs
Elanco K9 Advantix II 4-Month Supply Topical Flea, Tick & Mosquito Treatment & Prevention for Large Dogs 21-55 lbs








Elanco K9 Advantix II 4-Month Supply Topical Flea, Tick & Mosquito Treatment & Prevention for Large Dogs 21-55 lbs
Elanco K9 Advantix II 4-Month Supply Topical Flea, Tick & Mosquito Treatment & Prevention for Large Dogs 21-55 lbs
Key Benefits
- Kills and repels fleas, ticks, lice, mosquitoes
- Begins working within 12 hours of use
- Fleas die on contact, no bites needed
- Waterproof after 24h, works in rain/baths
- Safe for dogs 21–55 lbs, 7+ weeks old

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Description
Description
Use the Elanco K9 Advantix II 4-Month Supply Topical Flea, Tick & Mosquito Treatment & Prevention to protect your large dog. This easy-to-use topical solution is made for dogs weighing 21–55 pounds and offers reliable, broad-spectrum protection against fleas, ticks, and mosquitoes.
Elanco K9 Advantix II is the best dog flea control that works quickly, starting to repel and kill fleas within 12 hours—before they even bite your pet—providing fast relief and reducing the risk of itchiness and skin disease. It also effectively deters and kills ticks and repels mosquitoes, decreasing the risk of insect-borne illnesses.
Each application lasts for a full month and is waterproof 24 hours after use, so your dog can still enjoy baths and rainy weather without losing protection. Recommended by veterinarians, this topical treatment is simple to apply, continuously shields your dog for 30 days, and is a trusted choice to keep your large dog healthy, happy, and free from unwanted pests.
Key Benefits
- Elanco for dogs kills and keeps lice, fleas, ticks, and mosquitoes away.
- It starts to function 12 hours after application.
- It kills fleas upon touch, preventing them from biting.
- After a day, it becomes waterproof and remains effective in rain and baths.
- This protects against illnesses that bugs can spread.
- It is appropriate for dogs older than seven weeks and weighing between 21 and 55 pounds; no prescription is needed.
Ingredients & Analysis
Ingredients & Analysis
- The three active components in K9 Advantix® II are pyriproxyfen, permethrin, and imidacloprid. Permethrin repels and kills ticks and mosquitoes, imidacloprid targets adult fleas, and pyriproxyfen interferes with the development of flea eggs and larvae. This synergistic combination guarantees comprehensive defense against a variety of external parasites.
Guaranteed Analysis
Composition |
Quantity |
Imidacloprid |
8.80% |
Permethrin |
44.00% |
Pyriproxyfen |
0.44% |
Other Ingredients |
46.76% |
Attributes OR Specification
Attributes OR Specification
Dogs 7 weeks and older
Fleas, Ticks, Mosquitoes
Solution
Waterproof after 24 hrs
All Life Stages, Adult
Topical
Monthly
Over-the-counter (Prescription not required)
safety and precautions
safety and precautions
- Only apply externally to dogs; do not apply to cats or other animals.
- Keep your hands away from your dog's mouth and eyes.
- Don't let your dog consume the item.
- After handling, properly wash your hands with soap and water.
- Keep out of children's reach.
- Keep out of direct sunlight and store in a cool, dry location.
- Before using it on elderly, disabled, pregnant, or nursing pets, get advice from a veterinarian.
Direction
Direction
- To make the application easier, make sure your dog is standing.
- At the application site, part the hair till the skin is exposed.
- To apply the solution straight to the skin, place the tube's tip on the skin and squeeze.
- From the top of the shoulder to the tip of the tail, apply uniformly to several areas on the dog's back.
- To avoid runoff, avoid applying too much in one area.
- Keep your hands away from the dog's jaws and eyes.
- After application, wait 24 hours before washing the dog.
- Reapply once a month to ensure ongoing protection.





