Can Cats Get Sick From Eating Poisoned Mice?


Cats are natural hunters, and it’s not uncommon for them to catch and eat mice. However, what happens if those mice have been poisoned? Can cats get sick from eating poisoned mice? This article will explore the potential dangers and risks associated with cats consuming poisoned mice.

Understanding the Risks

Poisoned mice are a common problem in households where rodent control measures are in place. Many people use various types of poisons to eliminate mice, and if a cat catches and consumes a poisoned mouse, it can lead to serious health consequences for the feline.

When a cat consumes a poisoned mouse, it essentially ingests the poison along with the mouse. The type and strength of the poison will determine the severity of the cat’s reaction. Common rodenticides contain chemicals like anticoagulants, bromethalin, or cholecalciferol, all of which can be harmful to cats.

1. Anticoagulant Rodenticides

Anticoagulant rodenticides are the most commonly used type of poison for mice. They work by preventing blood clotting, leading to internal bleeding and eventual death of the mouse. If a cat consumes a mouse that has ingested anticoagulant rodenticide, it can also suffer from internal bleeding.

The symptoms of anticoagulant poisoning in cats may not be immediately apparent. However, over time, the cat may start showing signs such as weakness, lethargy, pale gums, and blood in the stool or urine. If left untreated, anticoagulant poisoning can be fatal.

2. Bromethalin

Bromethalin is another type of rodenticide that is highly toxic to cats. It affects the cat’s central nervous system and can lead to brain swelling. Symptoms of bromethalin poisoning in cats include muscle tremors, seizures, paralysis, and even death. Immediate veterinary attention is crucial if a cat has consumed a mouse poisoned with bromethalin.

3. Cholecalciferol

Cholecalciferol, also known as vitamin D3, is another common ingredient in rodenticides. While vitamin D is essential for cats, an excess amount can be toxic. Cholecalciferol rodenticides can cause an overdose of vitamin D in cats, leading to increased calcium levels in the bloodstream. Symptoms of cholecalciferol poisoning include increased thirst and urination, vomiting, loss of appetite, and ultimately, kidney failure.

Treating Poisoned Cats

If you suspect that your cat has consumed a poisoned mouse, it is crucial to seek veterinary assistance immediately. Time is of the essence, as early intervention can greatly increase the chances of a positive outcome. The veterinarian will perform a thorough examination and may conduct tests to determine the type of poison and its effects on the cat.

Treatment for poisoned cats will vary depending on the specific poison ingested. In some cases, the veterinarian may induce vomiting to remove the poison from the cat’s system. Activated charcoal may also be administered to absorb any remaining toxins in the stomach. Antidotes or specific treatments may be necessary for certain types of poisoning, so it is essential to follow the veterinarian’s recommendations closely.

Preventing Poisoning

The best way to protect your cat from the dangers of poisoned mice is to prevent exposure in the first place. Here are some strategies to consider:

  • 1. Secure Your Home: Seal any entry points that mice can use to access your home. This includes gaps in doors, windows, and walls.
  • 2. Use Humane Traps: Instead of using poisons, opt for humane traps to catch and release mice away from your home.
  • 3. Keep Poisons Out of Reach: If you must use rodenticides, make sure they are placed in areas inaccessible to your cat. Use locked bait stations or place them in areas that only mice can access.
  • 4. Monitor your Cat: Keep an eye on your cat when it roams outside, especially in areas where mouse activity is common.
  • 5. Opt for Natural Alternatives: Consider using natural deterrents such as peppermint oil or ultrasonic devices to repel mice without harming your cat.
  • 6. Regular Veterinary Check-ups: Schedule regular check-ups for your cat to ensure their overall health and catch any potential issues early.


Can cats die from eating poisoned mice?

Yes, cats can die from eating poisoned mice, especially if the poison is a potent one like bromethalin or cholecalciferol. Immediate veterinary attention is crucial in such cases.

What are the symptoms of poisoning in cats?

Symptoms of poisoning in cats can vary depending on the type of poison ingested. Common symptoms include weakness, lethargy, diarrhea, vomiting, seizures, and difficulty breathing.

How long does it take for symptoms of poisoning to appear?

The onset of symptoms can vary depending on the poison. In some cases, symptoms may appear within a few hours, while in others, it may take several days for signs to manifest.

Can cats recover from poisoning?

With prompt veterinary treatment, many cats can recover from poisoning. However, the outcome will depend on the type and severity of the poison, as well as the timeliness of treatment.

Should I induce vomiting if my cat has eaten a poisoned mouse?

It is best to seek veterinary advice before inducing vomiting in your cat. Some poisons may cause more harm if vomiting is induced, so it is crucial to consult with a professional.

How can I tell if a mouse is poisoned?

It can be challenging to determine if a mouse is poisoned just by looking at it. If you suspect mice in your area are being poisoned, it is best to take precautions and prevent your cat from hunting them.

Can cats build immunity to rodenticides?

No, cats cannot build immunity to rodenticides. Even if a cat has survived consuming a poisoned mouse in the past, they are still at risk if they consume another one.

In conclusion, cats can indeed get sick from eating poisoned mice. The type of poison and its concentration will determine the severity of the cat’s reaction. It is essential to prevent access to poisoned mice and seek immediate veterinary attention if consumption occurs. By taking preventive measures and being vigilant, you can protect your feline friend from the dangers of poisoned mice.

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