K9 Advantix Topical Flea, Tick & Mosquito Prevention for Dogs

Monthly protection that kills and repels pests for your dog

Product Description

K9 Advantix II is a simple monthly treatment that helps keep your dog safe from fleas, ticks, mosquitoes, biting flies, and lice. It works on contact, so pests don’t even have to bite to be killed. The easy-to-use formula starts working in just 12 hours and keeps protecting your dog for up to four weeks.

Benefits

• Comprehensive protection: Shields dogs from fleas, ticks, mosquitoes, biting flies, and lice for up to four weeks.
• Fast-acting formula: Begins killing fleas within 12 hours of application and continues working to prevent reinfestation.
• Stops bites early: Works on contact to keep pests from biting, helping protect your dog from irritation and illness.
• Stays strong after water: Keeps protecting your dog even after bathing or swimming, once the product has dried for 24 hours.
• Prevents flea return: Breaks the flea life cycle by killing eggs, larvae, and pupae to stop future infestations.

Variants

• K9 Advantix II for Small Dogs (4–10 lb)
• K9 Advantix II for Medium Dogs (11–20 lb)
• K9 Advantix II for Large Dogs (21–55 lb)
• K9 Advantix II for Extra Large Dogs (Over 55 lb)

Ingredients

Active Ingredients

Imidacloprid, Permethrin, Pyriproxyfen

Inactive Ingredients

Other proprietary ingredients that make up the carrier solution and ensure effective topical application.

How to Use

Directions for Use

• Apply to dry skin: Ensure your dog’s coat is completely dry before application for best absorption and effectiveness.
• Use entire tube: Apply the full contents of one tube directly onto the skin according to your dog’s weight category.
• Apply along the back: Part the hair and apply the solution evenly from the shoulders to the base of the tail.
• Keep away from sensitive areas: Make sure the product doesn’t get into your dog’s eyes, mouth, or any broken skin.
• Stay dry after applying: Avoid bathing or letting your dog swim for 24 hours after the application to ensure full protection.
• Use every month: Apply once every 30 days for continuous protection from fleas, ticks, and mosquitoes all month long.

Additional Information

Precautions

• Use only on dogs: This treatment is meant just for dogs and puppies that are older than 7 weeks.
• Keep away from cats: Do not use on cats, as exposure can cause serious illness or death.
• Avoid human contact: Prevent contact with skin, eyes, or clothing during and immediately after application.
• Do not reuse tubes: Dispose of used applicators safely and do not refill or reuse empty containers.
• Prevent water contamination: Do not allow the product to enter drains, ponds, or other water sources.
• Avoid excessive bathing: Frequent baths or swimming may reduce the product’s effectiveness before the 30-day period.

Possible Side Effects

• Minor skin reaction: Your dog might experience a bit of redness, itching, or mild hair loss where the product was applied.
• Behavioral changes: Some dogs may show brief agitation, restlessness, or lethargy after application.
• Digestive discomfort: Rare cases of vomiting or diarrhea may occur if the product is accidentally ingested.
• Allergic reaction: If signs like excessive drooling, trembling, or persistent irritation appear, contact a veterinarian immediately.

Storage Information

• Store in a cool spot: Keep the product in a dry, shaded place, away from heat and direct sunlight.
• Store safely: Keep the product in a place where children and pets cannot reach it to prevent accidental exposure.
• Do not freeze: Protect the product from freezing, as very low temperatures can affect its quality and how well it works.
• Do not contaminate: Avoid storing near food, animal feed, or water sources to prevent contamination.

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: How fast does K9 Advantix II start working on fleas and ticks?

Ans: K9 Advantix II begins killing fleas within 12 hours of application and continues protecting against new fleas for up to four weeks. It also repels and kills ticks on contact before they can attach and bite, helping reduce disease transmission risk.

Q2: Can K9 Advantix II be used on puppies?

Ans: Yes, K9 Advantix II is safe for puppies that are at least 7 weeks old and weigh 4 pounds or more. Always choose the correct variant based on your dog’s weight range to ensure proper dosing and effectiveness.

Q3: Is K9 Advantix II waterproof after application?

Ans: Yes, the product is water-resistant after 24 hours. Dogs can swim or be bathed after that period without reducing the product’s effectiveness. However, frequent bathing may slightly shorten the duration of full protection.

Q4: Can I use K9 Advantix II on cats or other pets?

Ans: No, K9 Advantix II is made only for dogs. It consists of permethrin, which is toxic to cats and can be deadly if touched or ingested. Keep cats away from treated dogs until the applied area is completely dry.

Q5: How often should I apply K9 Advantix II?

Ans: Apply one full tube every 30 days for continuous protection against fleas, ticks, mosquitoes, biting flies, and lice. Do not apply more than once every 30 days unless directed by a veterinarian for severe infestations.