The kitchen floor tells the story before anyone does. A chocolate wrapper chewed open, a sock missing from the laundry pile, a pill bottle knocked off the nightstand, and a pet sitting nearby looking pleased with itself. Most owners freeze for a moment, then type “my dog ate” into a search bar. The next hour matters more than the search result, so here is how to spend it.
If your dog or cat ate something it shouldn’t have, the safest plan is nearly always the same: move your pet away from the item, work out what was eaten, how much and when, keep the packaging, and call your vet or the nearest emergency animal hospital right away, even if your pet seems fine. Do not try to make your pet vomit at home. This guide is the first-hour plan for food, plants, medicines, chemicals and swallowed objects, with links to our food and plant pages for the details of each hazard.
- Call a vet now, not after symptoms appear. Many poisons and swallowed objects cause no signs at first, and early treatment gives the vet more options.
- Find out what, how much and when. Keep the wrapper, label, pill bottle or a piece of the plant.
- Do not make your pet vomit at home. Some substances and objects do more harm on the way back up, and only a vet can judge when vomiting is safe.
- Give no home remedies. Pet Poison Helpline advises against home antidotes, so give nothing by mouth unless a vet says to.
- Swallowed objects are emergencies too. A sock, string or bone can block the gut even when nothing about it is toxic.
Go to a vet or emergency animal hospital immediately if your pet is having trouble breathing, has collapsed, is shaking or having a seizure, keeps vomiting or retching, is drooling heavily, has a swollen or painful belly, has pale gums, or seems dull and unlike itself. Call ahead on the way so the team can prepare.
Step by step: the first hour
The first hour after a pet eats something unsafe is about information and speed, and both fit into a few calm minutes. The steps below follow the order Pet Poison Helpline recommends.
- Move your pet away from the source and pick up anything left, including crumbs, wrappers and spilled pills.
- Check that your pet is breathing and acting normally. If not, go straight to the nearest emergency animal hospital.
- Work out what was eaten, how much and when. Count the pills left, see how much of the bag is gone, and think back to when you last saw the item untouched. Keep the package or photograph the label.
- Call your vet or an emergency animal hospital and follow their advice about whether to come in.
- Give nothing by mouth and do not try to make your pet vomit unless a veterinarian tells you to.
Animal poison control services such as the ASPCA Animal Poison Control Center and Pet Poison Helpline can also assess an exposure around the clock. Cornell University’s College of Veterinary Medicine notes that both charge a consultation fee.
Why “wait and see” is the wrong plan
A pet that looks normal right after eating something is not proof that everything is fine.
Many dangerous items cause no signs for hours or days. PetMD points out that plenty of swallowed objects produce no immediate symptoms, and some poisons are just as slow. The Merck Veterinary Manual notes that onion and garlic usually break down red blood cells three to five days after a pet eats them, and the most common rat poisons take several days to cause bleeding, as our rat poison guide explains. Meanwhile the window for the simplest treatments closes. Pet Poison Helpline puts it plainly: with poisoning, the sooner a dog or cat is treated, the better the outcome.
The dose matters, and so does the species. The Merck Veterinary Manual explains that toxicity depends on both the amount and the animal, and the ASPCA notes that cats are more susceptible than dogs to onion and garlic, so a lick of onion gravy can matter more for a cat than for a large dog. Judging whether an amount is dangerous takes the item, the dose and your pet’s weight together, which is exactly what a vet or poison service works out on the phone.
Do not make your pet vomit at home
Making a pet vomit is a veterinary decision, never a home first-aid step.
Pet Poison Helpline tells owners not to induce vomiting without first consulting a vet or the helpline, and Cornell warns that vomiting is sometimes the wrong choice. The Merck Veterinary Manual gives clear examples: after a pet swallows a corrosive product such as a strong cleaner, vomiting should never be induced, because the substance burns the throat and stomach again on the way up, and the same applies when a swallowed battery may be punctured. PetMD adds that some objects are more dangerous coming back up than going down. A vet can weigh what was eaten, how long ago and how alert your pet is, and then empty the stomach safely if that helps.
Home antidotes are no better. Pet Poison Helpline advises against them, and time spent on a home remedy is time not spent getting to the clinic. The most useful thing to do with your hands is hold the packaging and drive.
Poison or swallowed object? Why the difference matters
Pets get into trouble in two broad ways: eating something toxic, or swallowing something that gets stuck. Some items do both.
Poisons act on the body chemically. In the ASPCA Animal Poison Control Center’s figures for 2025, over-the-counter medicines and supplements were the most common cause of calls, followed closely by human food and drink, led by grapes and raisins, xylitol gum, and onions and garlic. Prescription medicines, chocolate, flavored veterinary chews, plants, rat bait, household cleaners and insecticides filled out the top ten. With poisons, the active ingredient and the dose decide the treatment, which is why the label is so valuable.
Swallowed objects, which vets call foreign bodies, cause physical harm. VCA Animal Hospitals lists the usual suspects in dogs: paper, tissues, clothing, sticks, bones, food wrappers and rocks. Some pass through without trouble, but an object that lodges in the stomach or intestine can cut off blood supply to the gut wall, and VCA describes time as critical once that happens. Surgery is the only treatment for a true blockage. When an object might still pass, a vet may keep your pet in hospital for fluids and repeat X-rays rather than send it home to wait.
String, thread, ribbon, yarn and tinsel deserve their own warning. VCA explains that these long, thin objects can catch at one end, often under the tongue in cats, while the intestine bunches up along the rest, which can tear the gut wall. Cornell describes these linear foreign bodies as more dangerous than other objects. If you see string hanging from your pet’s mouth or bottom, do not pull it, as PetMD advises, and take your pet to a vet.
Batteries, bones and dough cross both lines. The Merck Veterinary Manual notes that an alkaline battery can cause chemical burns and a blockage at the same time, and the ASPCA warns that bones can injure or block the gut while raw yeast dough can swell in the stomach and produce alcohol.
Where to read about specific foods, plants and poisons
Each page below explains one hazard in detail, including how much is risky and what signs to expect.
Dogs. Our list of what dogs can and cannot eat covers more than forty foods, including chocolate, grapes and raisins, onions, garlic, xylitol, macadamia nuts, coffee, and fruit with pits or seeds such as cherries, peaches and apples.
Cats. The cat food list includes onions, garlic, chocolate, grapes and alcohol.
Plants. Our plant safety list gives separate verdicts for cats and dogs, and the plants toxic to cats list gathers the riskiest ones. Lilies are an emergency for cats.
Rat and mouse bait. See what to do if your pet ate rat poison.
Warning signs to watch for
Warning signs depend on what was eaten, and many appear hours or days later, so keep watching your pet even if the vet said it was safe to wait at home.
Pet Poison Helpline, VCA and the ASPCA describe the signs below. Any one of them in a pet that may have eaten something unsafe is a reason to contact your vet or an emergency animal hospital.
- Vomiting or retching, especially repeated, or vomit with blood
- Heavy drooling
- Diarrhea, or black, tarry stool
- Not eating, or straining to pass stool with little coming out
- A swollen belly, or pain when the belly is touched
- Shaking, tremors, wobbling or seizures
- Fast or difficult breathing
- Pale or yellow gums
- Weakness, collapse, or unusual dullness
- Drinking and urinating much more than usual, or urinating much less
- In cats, hiding more than usual or refusing to settle
For first steps in other emergencies, such as choking or a seizure, see our pet first aid guide.
What to bring to the vet
A few minutes of gathering before you leave saves time at the clinic. Cornell lists the details a vet needs first: the product’s name and ingredients, the amount eaten, when it happened and your pet’s approximate weight.
- The package, label or pill bottle, or clear photos of the name and ingredients
- A sample of what was eaten, such as a piece of the plant, sealed in a bag
- Your best estimate of the amount and the time
- Your pet’s approximate weight and any medicines it takes
- Any signs you have seen, and when they started
If you have no idea what your pet ate but it is clearly getting sicker, go anyway. Cornell’s advice is direct: a dog that seems acutely ill and is getting worse needs a veterinarian right away, label or no label.
How to stop it happening again
Most accidental ingestions involve ordinary things left within reach, so prevention is mainly about where things are kept.
Practical prevention around the home
Medicines and supplements. The ASPCA’s top toxin list starts with medicines, so keep every pill, vitamin, cream and flavored pet chew in a closed cabinet, not on a nightstand, in a handbag or on a low shelf.
Food and rubbish. The ASPCA warns about human food and drink left out or sitting in an open bin. A lidded bin and a cleared table after meals prevent many emergencies, and a word with guests and children about sharing snacks helps too.
Socks, string and small things. Cornell advises keeping small chewable objects out of reach, avoiding small bones and toys, and supervising play. Put away sewing kits, hair ties, ribbon and dental floss, especially in homes with cats. For dogs that keep swallowing things on walks, Cornell suggests basket muzzle training.
Plants and chemicals. Check a plant before it comes home, and keep cleaners, paints and garden products in their original containers behind a closed door.
Holidays. Chocolate, rich leftovers, decorations and new plants all arrive at once. Our seasonal guides cover Halloween, Thanksgiving and Christmas.
Be ready. Save your vet’s number and the nearest emergency animal hospital in your phone now, so the first hour starts with a call instead of a search.
Back to the kitchen floor
The chewed wrapper and the missing sock will still be on the floor when you get home from the vet. What changes the story is the hour in between: a pet moved away from the mess, a label in your pocket, and a call made before the first sign of trouble rather than after it.
Frequently asked questions
My dog ate something it shouldn't but seems fine. What should I do?
Call your vet or an emergency animal hospital now, even if your dog seems fine. Many poisons and swallowed objects cause no signs for hours or days, and treatment works best early. Have the package, the amount and the time ready.
Should I make my dog or cat throw up?
No. Only a veterinarian should decide whether to make a pet vomit. Corrosive products, punctured batteries and some objects cause more damage coming back up.
My cat ate onion. What should I do?
Contact your vet straight away and say how much onion your cat ate, in what form and when. Cats are more sensitive than dogs to onion and garlic, and damage to red blood cells can appear days later. Our page on whether cats can eat onions explains the signs.
My dog swallowed a sock. Will it pass on its own?
A sock sometimes passes, but it can also block the stomach or intestines, and there is no safe way to tell at home. Call your vet now. Repeated vomiting, a painful belly or not eating are signs of a blockage and need emergency care.
How long after eating something toxic will a pet show signs?
Signs can begin within minutes or take several days, depending on the substance and the dose. Onions, garlic and the most common rat poisons often cause harm days later, so call a vet rather than waiting for signs.
Sources
- ASPCA: The Top 10 Toxins of 2025
- ASPCA: The Top 10 Deadliest Pet Toxins
- ASPCA: People Foods to Avoid Feeding Your Pets
- Pet Poison Helpline: What to Do If Your Pet Is Poisoned
- Pet Poison Helpline: Signs of Poisoning in Dogs and Cats
- Cornell University College of Veterinary Medicine: First Aid for Poisonous Substances
- Cornell University College of Veterinary Medicine: Gastrointestinal Foreign Body Obstruction in Dogs
- Merck Veterinary Manual (pet owner version): Introduction to Poisoning
- Merck Veterinary Manual (pet owner version): Household Hazards
- Merck Veterinary Manual: Garlic and Onion (Allium spp) Toxicosis in Animals
- VCA Animal Hospitals: Ingestion of Foreign Bodies in Dogs
- VCA Animal Hospitals: Linear Foreign Body in Cats
- PetMD: What To Do If Your Dog Swallowed Something They Shouldn’t Have
This guide is general information and not a substitute for veterinary advice. If your pet may have eaten something harmful, contact a veterinarian or an emergency animal hospital immediately.