Common Rodenticide Toxicoses in Small Animals

Area of Science:

• Toxicology
• Veterinary Medicine
• Environmental Health

Background:

• Rodenticides are common household chemicals used for pest control.
• Previous regulations focused on anticoagulant rodenticides.
• The term "D-con" is often used generically for all rodenticides, regardless of active ingredient.

Purpose of the Study:

• To highlight the 3 most common rodenticide types: anticoagulants, bromethalin, and cholecalciferol.
• To emphasize the importance of identifying the specific active ingredient in rodenticide exposures.
• To discuss the impact of 2008 EPA risk mitigation measures on rodenticide product composition and reported cases.

Main Methods:

• Review of common rodenticide classifications and their active ingredients.
• Analysis of regulatory changes implemented by the Environmental Protection Agency (EPA) in 2011.
• Observation of trends in rodenticide exposure cases following regulatory shifts.

Main Results:

• Consumer rodenticide products now predominantly contain first-generation anticoagulants, bromethalin, or cholecalciferol.
• The shift in product composition has led to an observed increase in reported cases involving bromethalin and cholecalciferol.
• Misidentification of rodenticide types due to generic branding (e.g., "D-con") complicates exposure assessment.

Conclusions:

• Veterinarians and pet owners must be aware of the changing landscape of rodenticide active ingredients.
• Accurate identification of the specific rodenticide (bromethalin, cholecalciferol, or anticoagulant) is critical for effective treatment following exposure.
• Increased vigilance and owner education are necessary to mitigate risks associated with newer rodenticide formulations.