Advantix II - Flea & Tick Medicine
Description
TL;DR: K9 Advantix II is a monthly spot-on flea and tick topical for dogs 8 weeks and older, applied between the shoulder blades to affect fleas, ticks, lice and mosquitoes on contact — no bite required. It comes in four weight-based sizes (Small, Medium, Large, X-Large Dog) and is not for use on cats.
Advantix II is a topical parasite treatment for dogs that works on contact, so parasites are affected before they bite. This helps reduce the discomfort of infestations during peak flea and tick season.
Looking to buy topicals in Toronto? Ashario Pets stocks K9 Advantix II alongside other trusted parasite-control options for dogs.
Key features
- Affects fleas, ticks, lice and mosquitoes on contact — parasites do not need to bite.
- Monthly topical application between the shoulder blades.
- Suitable for dogs 8 weeks of age or older; choose the variant matched to your dog's weight.
- Waterproof after 24 hours; remains effective after swimming or bathing once dry.
- Available in Small Dog, Medium Dog, Large Dog and X-Large Dog sizes.
- Do not use on cats. Keep treated dogs away from cats during close contact.
Specifications
| Attribute | Value |
|---|---|
| Brand | Advantix |
| Product type | Topical parasite treatment |
| Form | Spot-on liquid |
| Application | Monthly, between the shoulder blades |
| Minimum age | 8 weeks |
| Life stage | Adult |
| Small Dog size | Up to 4.5 kg (10 lb) |
| Waterproof | Yes, after 24 hours |
| Size variants | Small, Medium, Large, X-Large Dog (4 options) |
Who is it for?
This flea and tick topical is for dog owners who want monthly, broad-spectrum coverage against fleas, ticks, lice and mosquitoes. The four size variants — Small Dog, Medium Dog, Large Dog and X-Large Dog — let you match the dose to your dog's current weight.
It is not suitable for cats, and households with cats should separate pets during and after application.
How do you apply K9 Advantix II?
Part the fur between the shoulder blades and apply the full contents of the tube directly to the skin. Use once a month, and allow 24 hours before bathing or swimming so the product can become waterproof.
Always select the variant that matches your dog's current weight, and re-check sizing as puppies grow into adult weight ranges.
Feeding & use
This is a topical product, not an oral treatment — it is applied to the skin, not given by mouth. Apply once every 30 days for continuous flea and tick protection, ideally year-round in regions with mild winters.
You may also like
If you're comparing options to buy topicals for your household, have a look at Advantage II - Flea & Tick Medicine for small dogs, the cat-friendly Advantage II - Flea & Tick Medicine for kittens under 2.3 kg, or Capstar - Fast Acting Oral Flea Treatment for fast-acting oral control.
Available for same-day pickup at our North York, Toronto storefront, or ships Canada-wide.
Advantix II - Flea & Tick Medicine
Frequently asked questions
Everything pet parents usually ask about this product.
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What dog sizes does Advantix II come in?
Advantix II is available in four variants: Small Dog, Medium Dog, Large Dog, and X-Large Dog. Choose the size that matches your dog's current weight for correct dosing.
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Is this suitable for puppies or only adult dogs?
This product is formulated for adult dogs. Always follow the dosing instructions on the package and consult your veterinarian if you are unsure.
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How is Advantix II applied?
Advantix II is a topical treatment applied directly to your dog's skin. Follow the application instructions printed on the packaging for the size variant you select.
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Can I pick this up in Toronto?
Yes. Same-day pickup is available at our North York storefront, and we also ship Canada-wide if you want to buy topicals online.
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How do I choose the right variant for my dog?
Match the variant to your dog's body weight using the size guidelines on the package. If your dog falls between sizes, ask your veterinarian for guidance.