Felpreva provides all-in-one parasite control for your cat. It treats and prevents fleas and controls paralysis ticks (Ixodes holocyclus) for 13 weeks, and treats ear mites, roundworms, lungworm, hookworms and tapeworms – all in a single spot-on dose.This product delivers long-lasting action against fleas and ticks, providing protection for three months. It is generally recommended that most adult cats are dewormed every three months. This means most adult cats will get complete parasite cover from just four doses per year!