Straight from the horses mouth - http://www.pfizeranimalhealth.co.nz/...x?Species=Cats
Ear Mites – 100% effective cure in cats with a single dose. Ear mites can live in a cat’s ear canal causing irritation and a black wax-like discharge. Ear mites account for the majority of ear infections in cats. Revolution is a topical application applied once to the back of the neck to cure ear mites.
So it claims to kill ear mites within a single dose, but it doesn't
Ear Mites – 100% effective cure in cats with a single dose. Ear mites can live in a cat’s ear canal causing irritation and a black wax-like discharge. Ear mites account for the majority of ear infections in cats. Revolution is a topical application applied once to the back of the neck to cure ear mites.
So it claims to kill ear mites within a single dose, but it doesn't