Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

What Can Kill a Cat? 16 At-Home Items Vets Tell Us To Watch Out For

Share

cat on a counter above the washing machine

Being a cat parent is a responsibility that should be taken seriously. Your cat needs water, food, frequent litter changes, grooming, playtime, and plenty of attention.

Another considerable responsibility is ensuring that your cat is healthy and safe. This means keeping on top of any potential dangers for your cat in and around the home, which also means familiarizing yourself with the household dangers that can be fatal for your feline.

If your cat has ingested something toxic, take them immediately to the closest emergency clinic or call the # Pet Poison Helpline  at (855) 764-7661 or the  ASPCA Animal Poison Control Center  at (888) 426-4435 .

divider 3 paws

The 16 At-Home Items That Can Kill A Cat

1. Lilies

White Easter Lily flowers in the garden
Image Credit: Viktor Sergeevich, Shutterstock

Several plants are toxic to cats and include but are not limited to:

  • Azaleas
  • Daffodils
  • Eucalyptus
  • Hyacinths
  • Jade
  • Mandrake
  • Milkweed
  • Mistletoe
  • Tomatoes (only the green plant parts, not the fruit)

Arguably, lilies  are one of the most toxic to cats. Specifically, you’ll need to look out for true lilies belonging to the Lilium genera, which include tiger, Asiatic, and Easter lilies. Even ingestion of a small amount of the pollen from these lilies can lead to kidney failure.


2. Onions and Garlic

garlic and onions
Image Credit: Shutterbug75, Pixabay

Everything in the onion family—chives, shallots, leeks, etc.—is toxic to cats. Garlic is worse than onions, being five times more toxic. Ingesting onions or garlic can cause anemia and lead to:

  • Digestive upset
  • Lethargy
  • Increased heart rate
  • Weakness
  • Increased breathing rate
  • Pale gums
  • Collapse

3. Chocolate

chocolates
Image Credit: Alexander Stein, Pixabay

The darker and more bitter the chocolate , the more toxic it is to cats. Caffeine and theobromine are the ingredients in chocolate that can cause the following signs:

  • Diarrhea
  • Vomiting
  • Elevated heart rate
  • Abnormal heart rhythm
  • Tremors
  • Seizures
  • Death

4. Human Medicines

medicine pills package in shopping basket with pharmacy blurred background
Image Credit: Kwangmoozaa, Shutterstock

Most human medicines are toxic to cats, for example acetaminophen, ibuprofen, antidepressants and cold medicines can all pose serious risks.

Cats do not have the enzyme to break down acetaminophen (paracetamol), it is extremely toxic leading to potentially fatal red blood cell and liver damage. Signs of acetaminophen toxicity include:

  • Brown gums and tongue
  • Weakness
  • Lethargy
  • Labored breathing
  • Depression
  • Vomiting

5.  Alcohol

wine-pixabay
Image Credit: PhotoMIX-Company, Pixabay

The ingestion of alcohol can cause gastrointestinal distress, dehydration, liver and kidney problems. If your cat drinks too much, it can result in seizures and respiratory failure.


6. Chemical Poisons

hand with gloves spraying a can of insecticide
Image Credit: Tharin kaewkanya, Shutterstock

These include things like paint removers, glues, and rust and varnish removers. The fumes from these products are hazardous for cats too.

Bait for rats and mice, insecticides, and antifreeze are also dangerous for cats. Ethylene glycol is the sweet tasting chemical found in antifreeze that is highly poisonous to cats even if a small amount is licked up, causing kidney failure and death.


 7. Household Cleaners

cleaning-sofa-with-spray
Image Credit: Lion Day, Shutterstock

Many common household cleaners are hazardous for cats. These include some carpet cleaners, bathroom and kitchen cleaners, and toilet cleaners. Signs can include:

  • Excessive drooling
  • Difficulty breathing
  • Vomiting
  • Ulcerations in the mouth

8. Vitamin D3

Cholecalciferol , activated D3, is a highly potent rat and mouse poison found in some baits. Any rodents that have ingested the bait can also poison cats if they’re eaten.  Ingesting toxic amounts of cholecalciferol causes elevations in blood calcium. This leads to acute kidney failure after 2-3 days. Signs may include:

  • Increased drinking and urination
  • Lethargy
  • Weakness
  • Inappetance
  • Vomiting

9. Grapes and Raisins

grapes
Image Credit: Josep Monter Martinez, Pixabay

Both grapes and raisins can be toxic to cats if ingested. They may cause gastrointestinal signs and kidney injury. It does not happen in every cat that eats them, but the toxic dose is unknown and they should be avoided. Signs of toxicity include:

  • Vomiting
  • Diarrhea
  • Stomach pain
  • Anorexia
  • Acute kidney failure

10. Caffeine

coffee beans
Image Credit: Couleur, Pixabay

Caffeine  is found in many products, such as tea, coffee, chocolate, energy drinks, and certain supplements. If your cat ingests anything with caffeine, the following can occur:

  • Hyperactivity
  • Restlessness
  • Vomiting
  • Rapid heart rate
  • High blood pressure
  • Abnormal heart rhythm
  • Tremors
  • Elevated body temperature
  • Seizures
  • Collapse
  • Death

11. Raw Bread Dough

chef and dough
Image Credit: Kitreel, Shutterstock

If eaten, the yeast in raw bread dough will ferment inside the gastrointestinal tract. The dough expands and produces ethanol which is absorbed and can result in ethanol toxicosis. Cats will suffer from bloating, abdominal pain and retching or vomiting. The cardiovascular, respiratory and neurologic systems are also all affected. Respiratory arrest, coma and death may occur if not treated.


12. Essential Oils

woman holding essential oil
Image Credit: New Africa, Shutterstock

Essential oils are toxic to cats through oral ingestion and the skin. Cats don’t have the enzyme in the liver needed to metabolize and eliminate toxins like essential oils. The most toxic essential oils to felines are:

  • Cinnamon
  • Citrus oil
  • Clove
  • Eucalyptus
  • Pennyroyal
  • Peppermint
  • Pine
  • Sweet birch
  • Tea tree
  • Wintergreen
  • Ylang ylang
Signs of essential oil poisoning include:
  • Respiratory distress
  • Vomiting
  • Wobbliness
  • Low heart rate
  • Low body temperature
  • Drooling
  • Liver failure
  • Tremors

13. String/Rope

a red string of yarn
Image Credit: sweetlouise, Pixabay

Any kind of string, rope, yarn, etc., can be dangerous to keep around a cat unsupervised. Ingesting thread, tinsel, or anything like these can lead to a gastrointestinal obstruction , which can easily cut through organs like a garrote.

There’s also the strangling issue, which is more prevalent with things like hanging cords found on blinds.


14. Balconies

blue house with balcony
Image Credit: KRiemer, Pixabay

If you live in an apartment, balconies are a definite threat to a cat’s safety. Falling can lead to injuries that need veterinary treatment. But too often, there are falls that are fatal. You should keep your cat off the balcony entirely or thoroughly cat-proof it  so your cat can safely enjoy the outdoors.


15. Dog Flea Products

woman applying tick and flea prevention medicine treatment to dog
Image Credit: Chutima Chaochaiya, Shutterstock

Some dog flea products contain pyrethrins/pyrethroids , which are highly toxic to cats. Cats are unable to metabolize these products and the chemicals affect a cat’s nervous system.  Signs of poisoning can include :

  • Staggering
  • Shaking
  • Twitching
  • Agitation

16. Washing Machines and Dryers

blanket in a washing machine
Image Credit: stevepb, Pixabay

Cats are notorious for maneuvering their way into a pile of clothing, like your laundry, for a nap. Since cats are so good at sneaking into places they are not supposed to be, accidents can happen.

There are too many stories of cats that darted inside washing machines or dryers when their owners’ backs were turned, resulting in tragedy. Always double-check what you’re putting inside the machines and that your cat is not inside before turning them on.

divider 3 paws

What to Do If Your Cat Is Poisoned

If you know that your cat has eaten something toxic but they aren’t showing signs, call your vet or the ASPCA Animal Poison Control Center at (888) 426-4435 or the Pet Poison Helpline at (855) 764-7661.

Have the following information available:
  • Cat breed
  • Age
  • Sex
  • Clinical signs
  • Agent (if known)
  • Amount ingested
  • Time elapsed since the exposure

You should also have the container or packaging available for reference.

If your cat is already showing signs of poisoning, such as:
  • Seizures
  • Loss of consciousness
  • Difficulty breathing

Take them immediately to your veterinarian or closest emergency clinic.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

How to Protect Your Cat

It’s essential to remember how much cats groom themselves. If anything toxic is on their fur, they will ingest it. This might be when a bath is in order.

Only give your cat medication that was prescribed specifically for them. Never give your cat any food, supplement, or medication meant for another species—dog or human.

Always double-check before opening or closing any doors, such as those of the dishwasher, washing machine, balcony, etc. This not only keeps your cat from going somewhere they shouldn’t, but you can also close the door on your cat and accidentally cause an injury.

divider 3 paws

Conclusion

While this all sounds like your cat is in constant danger, most people have cats that live long lives without encountering any of these threats. That said, you’re more likely to be a safer owner just by knowing about these dangers.

If your cat has fallen or has eaten something toxic, immediately take them to your veterinarian.


Featured Image Credit: Nacho-Posse, Pexels

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Why Chicken Bones Are More Dangerous for Cats Than Most Parents Realize

Chicken bones seem harmless enough, but for cats, they can cause serious damage quickly. Whether your cat swiped a piece off the counter...

Fantastic Pet Pantries and Where to Find Them

Let’s face it: times are really tough right now, and those of us in the 99% are struggling with the cost of just...

Ask Dr. Paola – Help! My Cat Refuses to Drink Water! (April 13, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Why Healthy Cats Still Vomit Sometimes (And How to Respond)

A cat that just vomited needs a specific kind of care, and the feeding decisions you make in the next few hours actually...

More related

Why Can’t My Cat Pee? 6 Possible Reasons (Vet Answer)

Your cat heads to the litter box and cries out rather than urinating. You check the litter box and can’t find evidence that...

6 Tips for Finding a Cat Sitter: Considerations & FAQ

If you’re planning on heading somewhere fun for a vacation or need to be out of town for a few days because of...

Cat Hiccups: Our Vet Explains Causes & What to Do

Can cats get hiccups? In short, yes! Just like their human counterparts, cats can get bouts of hiccups for a variety of reasons,...

Creating Outdoor Spaces for Indoor Cats: Dr Karyn’s Catio (with Video)

Hi, I’m Dr. Karyn! Read my introduction to learn more about me and meet my five hilarious cats: Clutch, Cyril, Alex, Zelda, and...

Keep reading

Can Cats Eat Avocado? Vet-Verified Health Concerns & FAQ

Avocados have several nutritional benefits for humans; they are low in sugar and packed with healthy vitamins and minerals. They are considered great for heart health and may help lower inflammation. Avocados can be made into dips like guacamole, added...

Can Cats Eat Avocado

8 Types of Cat Food: Vet-Reviewed Nutrition Facts & Advice

Deciding what to feed your cat isn’t as simple as it used to be. The pet food industry is experiencing explosive growth, and new manufacturers are frequently entering the market. If you’re unsure where to begin, you’ve come to the...

top view of a cream maine coon cat eating dry and wet pet food from feeding dish

Yeast Infection in Cats (Malassezia Dermatitis): Our Vet Discusses Signs, Causes & Treatment

Your cat is losing hair and, quite honestly, smells like corn chips. You know it’s not normal, so you call your veterinary hospital to schedule an appointment. Your head is spinning after your veterinarian suggests a skin impression and diagnoses...

vet examining red sore ear of a cat

Hypertension In Cats: Vet Reviewed Signs, Causes & Care

Cats are beloved family members that rely on their humans for love, companionship, and care. However, cats that receive love, high-quality food, and plenty of exercise sometimes have medical conditions, including high blood pressure or hypertension. Left untreated, hypertension can...

checking blood pressure of cat

How to Get Your Cat to Use a Litter-Robot: 7 Tips & Tricks

Litter-Robots are a big deal for cat owners since they clean the cat’s litter, and the odor trap system keeps odors at bay! So, you’ve spent top dollar on this massive litter box and brought it home. But what if...

cat-using-litter-robot-4-black

Natural Balance Cat Food Review in 2026: Recalls, Pros & Cons

Review Summary The pet food industry is big business in the United States, with an estimated $30 million worth of pet food sold annually. For a long time, the largest portion of the industry was in dog food. While that...

Natural Balance Cat Food Review

4 Best Foods for Cats With Feline Leukemia in 2026 – Reviews & Top Picks

Feline leukemia is an infectious virus that affects your cat’s immune system and is transmitted to other cats through their saliva, feces, or urine. Some cats infected with feline leukemia will have the disease for life, and unfortunately, there is...

orange cat eating on an orange bowl

Why Is My Cat So Hyper All of a Sudden: 8 Possible Reasons (Vet Reviewed)

For some cats, it is not rare that they will have a moment of wildness and suddenly charge around the house. For others, it can be a surprising and sudden occurrence. While it might simply be a case of your...

cream tabby maine coon cat playing water

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.