Cat Poison Emergency Checker
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Seizures, collapse or trouble breathing? Skip the checker β go to the nearest emergency vet now and call on the way.
Choose what your cat ate, how much and how long ago. In seconds you'll see the danger level, exactly what to do right now, and the nearest emergency vets.
Covers 60+ foods, plants, medicines & household poisons Β· Based on ASPCA, Pet Poison Helpline & Merck Veterinary Manual guidance
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If your cat ate something toxic, remove the item, keep the packaging, and call your vet, an emergency vet or a pet poison hotline immediately β before symptoms appear. Do not make your cat vomit at home. If your cat is having seizures, has collapsed or is struggling to breathe, go straight to the nearest emergency vet.
Cats are far more vulnerable to poisons than dogs. They're small, they groom toxins off their fur, and their livers lack some of the enzymes that break down common compounds like acetaminophen, aspirin and many essential oils. Speed matters: the first one to two hours are often when a vet can still remove the poison before it is absorbed.
Take away anything left, wipe up spills, and close the door on the room. Check for more evidence β chewed packaging, scattered pills, a knocked-over vase β and keep other pets away too.
Seizures, collapse, trouble breathing, or pale, blue or brown gums mean your cat needs an emergency vet right now. Don't stop to search online β use the emergency vet finder and call on the way.
Keep the box, label, pill bottle or plant (or take a clear photo). Estimate how much is missing and when it happened, and know your cat's approximate weight. This is exactly what the vet or poison line will ask.
Call your regular vet, the nearest emergency clinic, or a pet poison hotline. Many of the worst cat poisons β lilies, antifreeze, Tylenol, onion and garlic β cause internal damage long before your cat looks sick.
Don't induce vomiting, and don't give milk, oil, activated charcoal tablets or human medicine unless a vet tells you to. Home remedies waste time and can cause new injuries.
Put your cat in a carrier lined with a towel, keep them warm and quiet, and bring the evidence with you. Call ahead so the team can prepare the right treatment before you arrive.
Never try to make a cat vomit at home. The methods that circulate online are dangerous for cats, and inducing vomiting is only safe with veterinary drugs, at the right time, for the right poison.
At the clinic, vets give cats an injectable medication (such as dexmedetomidine or xylazine) to induce vomiting, then reverse its effects. Even then, vomiting is not used for corrosive products like drain cleaners or batteries, sharp objects like bones or needles, essential oils and other substances that can be inhaled into the lungs, or a cat that is already trembling, very drowsy or seizing. That decision belongs to a vet.
Poisoned cats don't always look sick at first. Watch for any of these signs β and remember that some toxins cause no visible symptoms for hours or even days.
Drooling, vomiting (sometimes with blood), diarrhea, not eating, a painful or swollen belly.
Wobbly walking, trembling, twitching ears or face, dilated pupils, unusual agitation or sleepiness, seizures.
Fast or labored breathing, pale, blue, brown or yellow gums, a swollen face or paws, weakness, collapse.
Drinking and peeing much more β or much less, or not at all. Typical after lilies, antifreeze, grapes and NSAID pain relievers.
Pawing at the mouth, foaming, mouth ulcers, red or irritated skin β common after chemicals, liquid potpourri and some plants.
Hiding, unusual vocalizing, restlessness, or simply "not themselves". Trust your instincts and call.
Anywhere from minutes to a week, depending on the poison. Fast-acting toxins like alcohol and some medications cause signs within an hour or two; others, like lilies, onion and rat poison, quietly cause damage that only shows up days later.
| Poison | First signs usually appear | Most serious effects |
|---|---|---|
| Alcohol, raw yeast dough | 30β60 minutes | Within hours: low blood sugar, low body temperature, slowed breathing |
| Antidepressants, ADHD medication | 1β2 hours (extended-release forms up to 6β8 hours) | Can last 24β48 hours |
| Dog flea products (permethrin) | Minutes to a few hours (sometimes up to 24 hours) | Tremors and seizures over the first 1β2 days |
| Acetaminophen (Tylenol) | Within a few hours | Oxygen-starved blood (brown gums), facial swelling; liver damage later |
| Caffeine | 1β2 hours | Racing heart, tremors |
| Chocolate | 6β12 hours | Signs can last up to 72 hours |
| Lilies (true lilies & daylilies) | Vomiting and drooling within hours (may stop) | Kidney failure in 24β72 hours |
| Antifreeze (ethylene glycol) | 30 minutesβ12 hours ("drunk" walking) | Kidney failure from 12β24 hours |
| Vitamin D3 (rat bait, psoriasis cream) | 12β36 hours | High calcium and kidney damage over days |
| Grapes & raisins | Vomiting within 24 hours | Kidney injury over 1β3 days |
| Onion, garlic, chives, leeks | Often no signs at first | Anemia 3β5 days later |
| Anticoagulant rat poison | None at first | Internal bleeding 3β7 days later |
| String, thread, ribbon | Hours to a few days | Intestinal blockage or perforation |
Timings are typical ranges from veterinary toxicology references; individual cats vary. "No signs yet" never means "safe" for the delayed poisons in this table.
This chart shows the most dangerous things cats eat, why they're harmful and roughly how much causes trouble for an average 10 lb (4.5 kg) adult cat. Kittens and small cats are affected by less. For a personalized answer, use the emergency checker above.
| What your cat ate | Why it's dangerous | How much is dangerous | Danger |
|---|---|---|---|
| π· Lilies & daylilies | Acute kidney failure | Any amount β a leaf, petal, pollen on fur or vase water | Emergency |
| π§ͺ Antifreeze | Kidney failure; antidote works only if given very early | About 1 teaspoon can be fatal (1.4 mL/kg) | Emergency |
| π Acetaminophen (Tylenol) | Destroys red blood cells' oxygen supply, liver damage | Signs from ~10 mg/kg β a small fraction of one 325 mg tablet | Emergency |
| π Ibuprofen, naproxen, aspirin | Stomach ulcers, kidney injury | Ulcers above ~5 mg/kg ibuprofen; kidney injury from ~20 mg/kg (half a 200 mg tablet) | Emergency |
| π Dog flea spot-on (permethrin) | Tremors, seizures | One dog dose β or close contact with a freshly treated dog | Emergency |
| π Rat & mouse poison | Bleeding, brain swelling or kidney failure (depends on type) | Any amount β cats are extremely sensitive to bromethalin | Emergency |
| π§ Garlic | Destroys red blood cells (anemia) | 3β5Γ more potent than onion β roughly a clove or two; less as powder | High Emergency |
| π§ Onion, leeks, chives | Destroys red blood cells (anemia) | Less than 1 tsp cooked onion, or ~5 g/kg raw (about 20 g) | High Emergency |
| π« Milk chocolate | Theobromine & caffeine (heart, nerves) | Mild signs from ~40 g (1.4 oz) | Moderate High |
| π« Dark chocolate | Theobromine & caffeine | Mild signs from ~16 g (0.6 oz) | High Emergency |
| π« Baking chocolate, cocoa | Most concentrated theobromine | ~6 g baking chocolate or ~3 g cocoa powder | Emergency |
| π Grapes & raisins | Kidney injury (tartaric acid suspected) | No known safe amount | High Emergency |
| πΊ Alcohol & raw dough | Alcohol poisoning; dough also bloats the stomach | Small amounts β a few laps of wine or spirits | High Emergency |
| πΏ Essential oils (tea tree) | Cats can't break down many oil compounds | Small amounts licked or on the skin | High |
| π§΅ String, thread, ribbon | Intestinal blockage, can cut the gut | Any length swallowed | High Emergency |
| π₯ Milk, cheese, dog food | Upset stomach only | Usually not dangerous | Low |
Chocolate amounts are estimates from published methylxanthine thresholds (mild signs ~20 mg/kg) and typical theobromine-plus-caffeine content. Garlic amounts are derived from its potency relative to onion. These numbers are guides for urgency β not a "safe" limit. See the full list of foods toxic to cats.
Tap Check now on any card to open the emergency checker with that item pre-selected.
Call your vet today, even if your cat seems fine. Garlic is roughly 3β5 times more toxic than onion and destroys red blood cells, but anemia often takes 3β5 days to show. Powders, garlic bread and sauces count. Recent, larger amounts may need the vet to induce vomiting.
Cats are the species most sensitive to onions. Poisoning has followed less than a teaspoon of cooked onion. Call your vet, keep watching for lethargy, pale gums and red-brown urine over the next week, and don't forget hidden onion in gravy, soup and baby food.
The darker the chocolate, the bigger the danger. A lick of milk chocolate is rarely serious, but dark chocolate, baking chocolate and cocoa powder can cause vomiting, a racing heart, tremors and seizures within 6β12 hours. Note the type and amount, then call.
Go to a vet now. True lilies and daylilies cause kidney failure in cats, and pollen groomed off the fur is enough. Treatment started early has a much better outcome; delays of 18 hours or more often lead to irreversible damage. Wipe the fur and bring the plant.
Call your vet or a poison line. Grapes and raisins can cause kidney injury, and there's no known safe amount. Evidence in cats is more limited than in dogs, but poison lines now see enough cat cases that vets treat any ingestion seriously.
This is a life-threatening emergency. Cats can't process acetaminophen β signs have occurred at around 10 mg/kg, a fraction of one tablet. Watch for brown or blue gums and a swollen face. Vets have an antidote (acetylcysteine), so go immediately.
Go to a vet now. Cats are especially sensitive to NSAID pain relievers: ibuprofen can cause stomach ulcers above about 5 mg/kg and kidney injury from about 20 mg/kg. Licked Voltaren (diclofenac) gel counts too. Bring the box.
Many dog spot-ons contain 45β65% permethrin, which can cause twitching, tremors and seizures in cats within hours. If your cat is calm, wash the area with liquid dish soap and lukewarm water, dry and keep warm, then go to a vet. If trembling has started, skip the bath and go now.
Go now β every minute counts. About a teaspoon can be fatal to a cat, and the antidote only works when started very early (within about 3 hours in cats). Cats often look "drunk", then seem better before kidney failure sets in.
Go to a vet and take the package. Baits differ: anticoagulants cause bleeding 3β7 days later, bromethalin causes brain swelling (cats are extremely sensitive), and vitamin D3 baits damage the kidneys. The exact active ingredient decides the treatment.
Cats lack liver enzymes needed to process many essential-oil compounds; tea tree oil is the most common culprit. Move your cat to fresh air, wash oil off the fur with a little dish soap (if calm), and call a vet or poison line. Don't induce vomiting.
Don't pull it out if it's hanging from the mouth or bottom β string can anchor in the gut and saw through it. Call your vet now; if a needle was attached, go straight in for an X-ray. Vomiting, not eating and lethargy are warning signs.
Cats absorb alcohol quickly and signs start within 30β60 minutes: wobbliness, drooling, vomiting, low body temperature and slowed breathing. Raw yeast dough also expands in the stomach and ferments into alcohol. Call a vet now.
Xylitol is deadly to dogs. A small study suggests cats are less sensitive, but the evidence is limited and gum can also cause a blockage β so call your vet or a poison line with the product name and how much is missing.
Pothos, philodendron, monstera, peace lilies and calla lilies irritate the mouth (drooling, pawing, vomiting) but don't cause kidney failure. Sago palm, lily of the valley and true lilies are emergencies. Not sure what it is? Take a photo and call.
Dramatic drooling and foaming are typical β the liquid tastes extremely bitter β but glow-stick liquid is low in toxicity. Offer a little tasty wet food or water to clear the taste, wipe the mouth, and wash glowing spots off the fur. Call your vet if signs persist.
Knowing what to expect makes the trip less frightening. Treatment depends on the poison and how long ago it happened, but usually follows these steps:
Have this ready β the checker above builds a copy-and-paste summary for you:
Be honest about everything, including cannabis edibles or prescription drugs β vets and poison lines are there to help your cat, not to judge.
Animal poison lines are staffed by veterinary toxicology specialists who can tell you whether your cat needs treatment and can advise your vet directly. Save the number for your country in your phone now.
| Region | Service | Phone | Cost |
|---|---|---|---|
| US & Canada | ASPCA Animal Poison Control Center | (888) 426-4435 | Consultation fee may apply |
| US & Canada | Pet Poison Helpline | (855) 764-7661 | $99 per incident, follow-up included |
| United Kingdom | Animal PoisonLine | 01202 509000 | Β£35 weekdays 8amβ8pm Β· Β£45 other times |
| Australia | Animal Poisons Helpline | 1300 869 738 | See helpline website |
| New Zealand | Animal Poisons Helpline | 0800 869 738 | See helpline website |
Numbers and fees checked October 2026. Your own vet or local emergency clinic can always help directly β use the emergency vet finder.
Most cat poisonings happen at home and are completely preventable. Ten minutes with this checklist removes the biggest risks:
28 foods that are dangerous for cats + emergency vet checklist β free PDF.
Stay calm and act fast. Take whatever is left away from your cat, keep the packaging or a photo of it, and note roughly how much was eaten and when. Then call your vet, an emergency vet or a pet poison line straight away β before symptoms appear. If your cat is having seizures, has collapsed or is struggling to breathe, go directly to the nearest emergency vet.
No. Do not try to make a cat vomit at home. Hydrogen peroxide β often recommended for dogs β can cause severe, even fatal, bleeding of the stomach lining in cats, and salt water can cause salt poisoning. Vets use injectable medications to make cats vomit safely, and only when it is the right call for that toxin.
It depends on the poison. Alcohol and many medications act within 30 minutes to 2 hours, and chocolate usually within 6β12 hours. Lilies, antifreeze, grapes, onion and garlic, and rat poison can take a day to a week to show their worst effects, even though damage starts much earlier. That is why you should not wait for symptoms before calling a vet.
Common signs include drooling, vomiting, diarrhea, not eating, hiding, wobbly walking, trembling or twitching, seizures, fast or difficult breathing, pale, blue, brown or yellow gums, a swollen face or paws, and drinking or urinating much more or much less than usual. Some cats show no signs at first.
Cats are the most sensitive species to onion and garlic. Poisoning has been reported after less than a teaspoon of cooked onion, or about 5 g of raw onion per kg of body weight. Garlic is roughly 3β5 times more potent, and dried powders and soup mixes are even more concentrated. The damage β anemia β usually shows up 3β5 days later, so call your vet even if your cat seems fine.
Darker chocolate is more dangerous. Using published veterinary thresholds (mild signs from about 20 mg/kg of theobromine and caffeine), an average 10 lb (4.5 kg) cat could show signs after roughly 40 g of milk chocolate, 16 g of dark chocolate, 6 g of baking chocolate or 3 g of cocoa powder. White chocolate contains almost none. Smaller or younger cats are affected by less.
Yes. True lilies (Lilium species, such as Easter, tiger, stargazer and Asiatic lilies) and daylilies are so toxic to cats that pollen licked off the fur or a sip of vase water can cause acute kidney failure. Wipe the pollen off with a damp cloth, stop your cat grooming, and go to a vet immediately β outcomes are far better when treatment starts early, ideally well within 18 hours.
Many do β especially when they reach a vet quickly. Early decontamination, antidotes (such as for acetaminophen, antifreeze or anticoagulant rat poison) and IV fluids greatly improve the odds. Delays are what make many poisonings fatal, so the most important thing you can do is get professional help right away.
In the US and Canada, the ASPCA Animal Poison Control Center (888-426-4435) and Pet Poison Helpline (855-764-7661) are staffed 24/7 by veterinary toxicology experts but charge a consultation fee; Pet Poison Helpline says its fee includes follow-up consultations with your vet. Your own vet or an emergency vet clinic can always advise you directly. In the UK, Animal PoisonLine is 01202 509000, and in Australia the Animal Poisons Helpline is 1300 869 738.
Usually, yes. Several of the most dangerous cat poisons β lilies, antifreeze, acetaminophen, grapes, onion and garlic, and rat poison β cause serious internal damage before any outward signs. Use the checker above to see the danger level, and call your vet or a poison line for anything rated moderate or higher.
Each item in the checker has a danger rating for four amounts (a lick, a small bite, a few bites, a lot), based on published toxic doses and veterinary guidance for an average adult cat. The rating then goes up β never down β if your cat already has symptoms, or is a kitten, senior, pregnant or has kidney, liver or heart disease. Poisons with no safe amount (such as lilies, antifreeze and acetaminophen) are always rated as emergencies. Time since exposure changes the advice, because the window for removing a poison is short.
Reviewed for accuracy against the sources below. Last updated October 2026. This page is general educational first-aid guidance and is not a substitute for examination and treatment by a veterinarian.