A cat ate a poisoned mouse – how should you treat it?

A cat ate a poisoned mouse – how should you treat it? - briefly

Seek veterinary assistance immediately; only a professional should induce vomiting or administer antidotes, then provide monitoring, activated‑charcoal treatment, and supportive care as indicated.

A cat ate a poisoned mouse – how should you treat it? - in detail

When a feline consumes a rodent contaminated with a toxic agent, immediate action is critical.

First, isolate the cat from other animals and prevent further ingestion of the carcass or any remaining bait.

Second, determine the likely poison. Common rodenticides include anticoagulants, bromethalin, cholecalciferol, and metal phosphides. Identification guides the specific treatment protocol.

Third, contact a veterinary professional without delay. Provide details about the incident, the type of poison if known, and the time elapsed since ingestion.

If veterinary assistance cannot be reached within minutes, consider the following emergency measures, recognizing that they do not replace professional care:

  • Induce emesis only if advised by a veterinarian and if the cat is alert, not vomiting, and the poison is not a corrosive substance.
  • Administer activated charcoal at a dose of 1 g per kg body weight, mixed with water to a palatable consistency, to bind remaining toxin in the gastrointestinal tract.
  • Maintain hydration with oral water or subcutaneous fluids if the animal is unable to drink, to support renal clearance.

Professional treatment may include:

  1. Anticoagulant poisoning – vitamin K1 administered orally or by injection for several weeks, with regular coagulation monitoring.
  2. Bromethalin toxicity – supportive care, seizure control with benzodiazepines, and reduction of intracranial pressure if indicated.
  3. Cholecalciferol overdose – intravenous lipid emulsion therapy, aggressive fluid therapy, and monitoring of calcium and phosphorus levels.
  4. Metal phosphide exposure – immediate decontamination of the oral cavity, administration of sodium bicarbonate to counteract metabolic acidosis, and intensive supportive care.

Continuous observation is essential. Record any signs such as lethargy, vomiting, diarrhea, bleeding, seizures, or respiratory distress. Report changes to the veterinarian promptly.

Follow-up appointments should include blood work to assess organ function, clotting status, and electrolyte balance, ensuring full recovery and preventing delayed complications.