The premium active ingredient Bromethalin. It is an acute, non-anticoagulant active that will begin to kill rats & mice in 2 or more days, faster than anticoagulant baits. Kills by affecting the rodents’ nervous system – Bromethalin is an ATP Inhibitor, which prevents the transfer of energy across nerve cells. Due to a quick knockdown when compared to anticoagulants, more rodents can be controlled with less bait. Good for severe infestations. Proven combination of palatability and effective control. Tomcat with Bromethalin Pellets provide additional flexibility and are labeled for use in rat burrows beyond 100 ft of buildings. Can be used indoors in areas inaccessible to children, pets or non-target animals.