Hartz First Defense Flea & Tick Treatment for Dogs 23-44 lbs

A fast acting, long lasting monthly treatment that contains Fipronil, the active ingredient used in Frontline TopSpot. It kills fleas, ticks, chewing lice and prevents and controls re-infestation for 30 days.Hartz First Defense for Dogs 23-44 lbs:Kills fleas, ticks and chewing licePrevents and controls reinfestationUse on dogs or puppies 8 weeks of age or older

Hartz First Defense Flea & Tick for Dogs - 23-44 Pounds, 3 Tubes