NexGard Spectra Large Cats 2.5-7.5kg Yellow is a monthly spot-on treatment that kills and prevents flea, tick, ear mite roundworm, hookworm, lungworm, and tapeworm infestations in cats and kittens. Product details Provides fast and effective treatment against the broadest spectrum of parasites is a spot-on, single, monthly, topical application containing esafoxolaner, eprinomectin and praziquantel is for the treatment and prevention of flea, tick, ear mite, roundworm, hookworm, lungworm and tapeworm infestations controls flea bite hypersensitivity by flea control and will kill newly acquired fleas within 8-24 hours suitable for cats and kittens kittens from 8 weeks of age weighing 2.5-7.5kg.