Brodifacoum is a highly lethal 4-hydroxycoumarin vitamin K antagonist anticoagulant poison. In recent years, it has become one of the world’s most widely used pesticides. It is typically used as a rodenticide but is also used to control larger pests such as possum.
Brodifacoum has an especially long half-life in the body, which ranges to several months, requiring prolonged treatment with antidotal vitamin K for both human and pet poisonings.
|Rats (oral)||0.27 mg/kg|
|Mice (oral)||0.40 mg/kg|
|Rabbits (oral)||0.30 mg/kg|
|Guinea-pigs (oral)||0.28 mg/kg|
|Squirrels (oral)||0.13 mg/kg|
|Cats (oral)||0.25 mg/kg|
|Dogs (oral)||0.25 — 3.6 mg/kg|
|Birds||1 mg/kg — 20 mg/kg|