Advantage Spot-On Flea Treatment for Cats over 4kg is a monthly topical that kills fleas on contact — no biting required. The 4-pack covers four months of protection for standard and large adult cats, suited to households where flea control is the primary concern.

Each pipette delivers imidacloprid, which kills 98–100% of fleas within 20 minutes. Re-infesting fleas stop biting within 3–5 minutes and are killed within one hour. The formula also kills larval flea stages in the cat's surroundings and reduces the incidence of flea allergy dermatitis. Water-resistant, and safe for kittens from birth and for pregnant and lactating cats.

Cats with flea allergy dermatitis benefit most from Advantage's contact-kill mechanism — the flea dies before it bites, which eliminates the allergic trigger. The water-resistant formula stays effective even in cats that get caught in the rain.