Advantage Multi for Dogs delivers 6-in-1 protection from heartworms, fleas, intestinal parasites & sarcoptic mange Veterinarian-trusted formula lasts 30 days and delivers more protection in a single dose Kills fleas through contact; pests don’t have to bite your dog to die Treats & controls roundworms, hookworms & whipworms Easy-to-apply topical treatment, no hard-to-swallow pills