K9 Advantix II Flea, Tick & Mosquito Protection - 6 Doses

Who is this product for?

K9 Advantix II is a monthly, broad-spectrum topical treatment for dogs and puppies 7 weeks and older, weighing 1.4 kg (3 lbs) or more. It is one of the most comprehensive parasite control products on the market, recommended by veterinarians. The 6-dose pack offers six months of continuous protection — ideal for covering the entire tick season in Quebec (May to October) without having to repurchase. It is particularly suitable if you are looking for:

• Complete 5-target protection — fleas, ticks, lice, mosquitoes, and stable flies
• Lyme disease protection — kills deer ticks (Ixodes scapularis), the main vector of Lyme disease in Quebec, cases of which have been rapidly increasing since 2020
• Full seasonal coverage — a single purchase covers the entire tick activity period (May to October)
• Pre-bite preventative action — parasites die on contact with the skin, without needing to bite your dog
• A waterproof formula that remains effective after shampooing, bathing, or swimming
• A repellent effect against mosquitoes and stable flies, which can transmit diseases
• Simple and quick application — just one application per month

Active Ingredients

• Imidacloprid 8.8% — kills adult fleas on contact by interfering with their nervous system
• Permethrin 44% — repels and kills ticks, mosquitoes, and stable flies. ⚠️ This ingredient is toxic to cats — never use on a cat.
• Pyriproxyfen 0.44% — a growth regulator that prevents the development of flea eggs and larvae

How it works

K9 Advantix II is applied to the skin along the dog's back. From there, it spreads evenly in a thin layer over the skin's surface and binds to the sebum, rather than being absorbed into the bloodstream.

When parasites such as fleas, ticks, mosquitoes, or lice come into contact with the treated dog's skin, their nervous system is immediately affected. The parasites quickly lose coordination and die — without having to bite your dog. This protects your pet from the discomfort of bites and can help prevent the transmission of diseases such as Lyme disease, heartworm, or anaplasmosis.

Dose selection by weight

Instructions for use

1. Remove one tube from its packaging and hold it upright, tip facing up
2. Break off the tip of the tube by bending the cap
3. For dogs under 11 kg: apply the entire contents of the tube at the base of the neck, between the shoulder blades
4. For dogs over 11 kg: apply the contents in 3 or 4 spots along the back, from the base of the neck to the base of the tail, parting the hair to reach the skin
5. Allow to dry completely (about 24 hours) before wetting, bathing, or allowing another animal to touch your dog
6. Repeat application once a month for continuous protection

🚨 Critical precautions for households with cats

Important precautions

• For external use only — do not ingest
• For dogs 7 weeks and older only, weighing 1.4 kg (3 lbs) or more
• Never use on a cat or rabbit — permethrin is toxic to these species
• Avoid contact with your dog's eyes and mouth
• Wash your hands after application
• Keep out of reach of children
• Avoid direct contact with the product for 24 hours after application
• Slight local irritation may occur; it usually subsides quickly
• Discontinue use and consult a veterinarian if you observe unusual signs (excessive salivation, lethargy, tremors, seizures, loss of appetite)
• Do not use on sick, weakened, or elderly dogs without veterinary advice

Package contents

6 doses = 6 months of treatment. Each box contains 6 pre-dosed single-use tubes.

💡 Why choose the 6-dose format: It's the ideal option to cover the entire tick season in Quebec in a single purchase. No mid-season reordering to manage, no risk of forgetting a dose. For dogs active in forests, the countryside, or hiking, this is the most convenient option.

Other available formats

• 4-dose format (4 months) — partial season coverage, a good compromise between price and commitment
• 2-dose format (2 months) — ideal for trying the product or for occasional protection (traveling to a tick-prone area, hiking)

Seasonal recommendation in Quebec

In Quebec, tick season generally runs from March to November, but can begin as soon as the temperature exceeds 4 °C. For optimal protection against Lyme disease, it is recommended to continuously treat your dog during this period, especially if you frequent forests, hiking trails, dog parks, or rural areas.

The 6-dose format ideally covers the entire tick activity season from May to October. It is our most convenient format for owners who want a "hassle-free" solution for the entire season.

Storage

Store at room temperature, away from direct sunlight and excessive heat. Keep out of reach of children and animals.

Important notice: The information provided on this page is for informational purposes only and does not replace the advice of a veterinarian. If in doubt or if your dog has health problems, consult your veterinarian before using this product.