Adventure on, pests off — an independent K9 Advantix II guide. Not Elanco, and not the brand's official site.
Start at the scale

Policy

Asked at the trailhead

Is this the official K9 Advantix II site? No — it's an independent catalog and field guide. Elanco's own product page and the label in the box are the official word.

My dog is right at 20 pounds — which band? The scale decides, not the estimate: weigh the dog, and if the reading sits on a boundary, ask your vet rather than rounding. Dosing bands exist for a reason.

Why is there no cat version here? Because there must never be one — K9 Advantix II contains permethrin, which is toxic to cats. The safety guide covers what that means for households that have both.

Puppies? The label allows dogs and puppies 7 weeks and older, inside the right weight band. Younger or lighter than that — vet first.

Why do the bigger boxes cost less per dose? Same math as anywhere: a six-dose box runs about $13 a month against nearly $18 in the two-dose — the dosing table lays out every band's numbers.

The 12-dose bundle disappeared — will it return? Stock is the retailer's call. When a listing loses its buy box for good, it leaves the shelf here on the next update.