Bromethalin is a potent acute toxicant. Rodents stop feeding after eating a toxic dose so more rodents are controlled with less bait. Kills anticoagulant resistant norway rats, roof rats and house mice. For use in and around agricultural buildings and homes. Active Ingredient: Bromethalin 0.01%. This product is intended for farm and agricultural settings Bromethalin is a potent acute toxicant Rodents stop feeding after eating a toxic dose so more rodents are controlled with less bait Kills anticoagulant resistant Norway rats, roof rats and house mice. Bromethalin is a potent acute toxicant. Rodents stop feeding after eating a toxic dose so more rodents are controlled with less bait. Kills anticoagulant resistant norway rats, roof rats and house mice.