Rodenticide Toxicity: Anticoagulant Poisoning Welfare in Cats

Key Welfare Facts

Anticoagulant rodenticides cause fatal internal bleeding by depleting clotting factors over several days.
Cats are poisoned through primary ingestion of baits or secondary poisoning through eating poisoned rodents.
The delayed action means signs appear days after exposure, by which time severe coagulopathy has developed.
Affected cats show pallor, weakness, respiratory distress, and bleeding from multiple sites before collapse.
Treatment with vitamin K1 over 4-6 weeks reverses the anticoagulant effect when started before irreversible organ damage.
Second-generation rodenticides accumulate in prey and persist in the environment, creating ongoing wildlife risk.

Welfare Assessment

Rodenticide toxicity is preventable through careful bait management and awareness of secondary poisoning risk. Choosing alternative pest management methods whenever possible protects both pet cats and the wildlife that forms part of their hunting range.

What You Can Do

Store rodenticide baits in tamper-proof bait stations inaccessible to cats and wildlife
Consider alternative pest management including traps and exclusion before using rodenticides
Seek emergency veterinary treatment if rodenticide exposure is suspected
Advocate for restrictions on highly toxic second-generation anticoagulant rodenticides