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This guide is general education for pet owners. If your pet has urgent symptoms, possible poisoning, injury, breathing trouble, collapse, severe pain, or sudden decline, contact a licensed veterinarian or local emergency service.
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Dog Ate Anticoagulant Rat Poison: Hemorrhage & Vitamin K1 Triage
Clinical Verdict: HIGHLY FATAL (Delayed Internal Hemorrhage)
Dogs CANNOT ingest anticoagulant rat poisons. These compounds do not kill instantly; they deplete clotting factors over 3 to 7 days, causing spontaneous, uncontrolled internal bleeding into the lungs, abdomen, or brain.
Toxic Mechanism & Chemical Agent
- Toxic Agent: Second-Generation Anticoagulant Rodenticides (SGARs: Brodifacoum, Bromadiolone, Diphacinone)
- Mechanism of Action: Competitively inhibits Vitamin K1 epoxide reductase enzyme, blocking the regeneration of active Vitamin K and halting hepatic synthesis of coagulation factors II, VII, IX, and X.
Clinical Signs & Delayed Timeline
- Onset Time: No immediate symptoms; clinical bleeding begins 3 to 7 days post-ingestion.
- Primary Symptoms: Lethargy, pale gums, coughing up blood (hemoptysis), epistaxis (nosebleeds), hematuria, black tarry stools, swollen bleeding joints, sudden collapse.
Emergency Triage Protocol
IMMEDIATE ER VISIT / BRING PACKAGING
Bring the poison packaging to confirm the active chemical. If recent (<2-4 hours), a vet will perform medical emesis and administer activated charcoal. Confirmed ingestion requires a mandatory 30-day oral Vitamin K1 therapy regimen.
Strict Rule S1 Warning
NEVER induce vomiting at home using hydrogen peroxide without direct instruction from a DVM. Inappropriate emesis can cause fatal aspiration pneumonia, esophageal chemical burns, or gastric rupture. Always seek professional veterinary diagnosis.
Clinical Toxicology & Safety Tool
Pet Toxic Food & Hazard Fast-Checker
Rapidly verify toxicity risks, toxic mechanisms, and immediate clinical steps for common household foods, plants, and human medications before calling poison control or your veterinarian.
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