What is Bromethalin?

Bromethalin is a rodenticide approved by the EPA in 1984 to combat the world-wide problem of rodent resistance to warfarin-like anticoagulant (blood thinning) rodenticides. Bromethalin is the key ingredient in Fastrac Blox, Fastrac Pellets, and Talpirid Mole Bait. Since Bromethalin is a single-feed rodenticide, it only requires 1/3 the bait amount of a typical anticoagulant rodenticide because a lethal dose keeps the rodent from feeding a second time. Always use Bromethalin as directed, typically with an EPA approved tamper resistant bait station when targeting mice and rats. Bromethalin is highly toxic to humans, pets, and wildlife.

Where is Bromethalin used?

Bromethalin is used to control persistent rodent populations such as Norway rats, roof rats, mice, moles, voles, and other field rodents. It can be applied inside and outside of industrial buildings and homes, in alleys, port terminals, sewers, farmhouses, grain stores, factories, fields, and transport vehicles such as trains, ships, and aircraft.

How does Bromethalin work?

Bromethalin is a highly potent rodenticide that provides a lethal dose to rodents in a single feeding. After ingesting Bromethalin, the animal stops eating. Bromethalin works by causing the cells in the nervous system to stop producing energy. The nerve cells swell and put pressure on the brain, which leads to paralysis and death. Bromethalin kills faster than other anticoagulant pesticides, usually within 1-2 days, and is ideal when populations require a quick knockdown.


How safe is Bromethalin?

Bromethalin is extremely toxic and lethal to humans, pets, birds, fish, and other wildlife. Use tamper-resistant bait stations to keep the poison away from pets and children. Bromethalin is activated by ingestion, or inhalation; and is considered category II (moderately toxic) by the EPA when exposed to the skin through contact. Wear gloves during treatment, and make sure to wash arms, hands, and face with soap after handling the bait. Avoid all contact with the mouth. Do not allow the bait to contaminate food or water supplies. In case of accidental ingestion, call the Center for Poison Control and a doctor immediately. Although there is no direct antidote for Bromethalin, there are treatment programs for sub-lethal ingestions.

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