FIPROTEC CAT is your monthly guard against fleas on any cat weighing less than 8kg. FIPROTEC contains the active ingredient Fipronil 9.7% m/v. Fipronil will spread over the entire coat of the animal and kill all fleas within 24hours of application and ticks within 48 hours. FIPROTEC has a residual effect which keeps killing fleas for up to 5 weeks and tick for up to 2 weeks. Suitable for Kittens 12 weeks and older.