Tomcat Bait Chunx Pail 4 LB na Made in USA 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. Bromethalin is a potent acute toxicant Rodents stop feeding after eating a toxic dose so more rodents are controlled with less bait