For the treatment and prevention of flea infestations, control and treatment of flea allergy dermatitis and control of biting lice on cats. Rapid onset to kill fleas and prevent development of flea eggs, larvae and pupae. Also kills fleas in the pet’s surroundings. Safe for use on kittens from 8 weeks of age and in breeding, pregnant or lactating queens. Each application provides one month of protection and is water fast within 24h after it has spread over the coat.