From Wikipedia, the free encyclopedia
Jump to: navigation, search
Brometalin Formula V.2.svg
IUPAC name
63333-35-7 YesY
ChemSpider 40463 YesY
Jmol 3D model Interactive image
KEGG C18697 N
PubChem 44465
Molar mass 577.93 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YesYN ?)
Infobox references

Bromethalin is a rodenticide which poisons the central nervous system by uncoupling mitochondrial oxidative phosphorylation, which causes a decrease in adenosine triphosphate (ATP) synthesis. Decreased ATP ultimately results in increased intracranial pressure, which damages neuronal axons. This damage to the central nervous system can cause paralysis, convulsions, and death.[1]

Risk of poisoning[edit]

There are no tests that will diagnose bromethalin poisoning in pets, but signs to watch for include severe muscle tremors, hyperexcitability, fits, extreme sensitivity to being touched (hyperesthesia) and seizures that appear to be caused by light or noise. Signs can be delayed for several days.

There is no antidote for bromethalin:care is symptomatic and supportive. Owners of animals who have eaten it accidentally should seek immediate veterinary attention and be decontaminated. Contacting an animal poison control center can help ensure that timely and appropriate therapy is started.

The mechanism of bromethalin toxicity differs from that of popular rodent poisons, which are anticoagulants related to warfarin (Coumadin). These drugs, such as diphacinone and bromadiolone, eaten by the mouse as an overdose, inhibit vitamin K and lead to a loss of clotting activity over several days (clotting factors require vitamin K). The ultimate result is hemorrhage.

While Bromethalin is labeled as a rodenticide, it is often used for rodent-like mammals such as moles. It is often hidden inside a worm-like bait to attract moles.


  1. ^ Bromethalin, Animal Disease Diagnostic Laboratory, Spring 1997 Newsletter