Sergeant'S Gold Flea And Tick Squeeze-On Cat Over 5-Pound [Misc.] by Sergeant's Kills adult fleas and ticks, as well as repels mosquitoes for up to one month Insect growth regulator kills flea eggs and larvae for up to three months per application For cats and kittens 5 lbs. and over, over 12 weeks of age Contains 3 application tubes