FRONTLINE Plus offers the long-lasting, most complete flea and tick control available, killing up to 100% of fleas on your pet within 18 hours and up to 100% of ticks on your pet within 48 hours. Best of all, research confirms that FRONTLINE products work for an entire month to help keep your pet flea-free. For cats or kittens 8 weeks or older. - See more at: http://www.agway.com/catalog/pet/flea_and_tick_control/drops/06613679_frontline_plus_for_cats_3-dose.html#sthash.uojkDmvR.dpuf