Common Household Items and Plants That Are Poisonous to Dogs

Safety guide · By Hollis Barrow · Published September 21, 2026 · Updated September 22, 2026

Written for general planning, not medical advice — no one at Argos Paws is a veterinarian. If something is wrong with your dog right now, call your vet or the nearest emergency clinic.

Most dog poisoning cases happen with things already sitting in the house, not exotic hazards — a room-by-room mental checklist catches more than trying to memorize a long list. The ASPCA Animal Poison Control Center fielded calls about more than 376,000 pet exposures in 2025 alone, and the ranked data backs this up: the top categories are medications, food, and chocolate — not anything unusual.

What's actually most common

Based on the ASPCA's 2025 call data, in order of frequency:

1. Over-the-counter medications and supplements (16.9% of calls) — vitamins, pain relievers, and increasingly skincare products left in reach.
2. Food and drink (16.4%) — grapes, raisins, xylitol gum, onions, and garlic make up the largest share.
3. Human prescription medications — heart medications, antidepressants, and ADHD medications are the most commonly ingested.
4. Chocolate (13.6%) — dogs are the far more common culprit than cats, since dogs will eat an entire pan of brownies given the chance.
5. Veterinary products (9.1%) — often flavored chewable supplements or medications, which are easy for a dog to overeat precisely because they taste good.
6. Plants and fungi (7.5%) — declining as a share of total calls, but still a real risk.

Rodenticides, household cleaners/paints, insecticides, and recreational drugs round out the rest of the list at lower but still meaningful volumes.

Kitchen

On grapes and raisins specifically: Cornell's veterinary college notes there's no reliably "safe" amount — toxic dose varies by dog and by the fruit's ripeness, so any ingestion should be treated as potentially serious. Signs, when they appear, commonly start with vomiting within 6-24 hours and can progress over 1-3 days if untreated.

Medicine cabinet and laundry room

Medications overall — OTC and prescription combined — are the single biggest category of poison control calls, ahead of food and ahead of chocolate. A bottle left in a purse or on a nightstand is a genuinely common way this happens.

Garage and yard

Common houseplants to avoid or keep out of reach

• Lilies — highly toxic (more so to cats, but still a concern for dogs).
• Sago palm — every part is toxic; among the more dangerous common houseplants for dogs.
• Autumn crocus — severe GI and organ toxicity.
• Aloe vera — mild GI upset if chewed, less severe than the above but still worth keeping out of reach.
• Pothos, philodendron — cause mouth and GI irritation.

If your dog gets into something on this list

Call your vet, the nearest emergency clinic, or a poison control line right away — the ASPCA Animal Poison Control Center (888-426-4435) and Pet Poison Helpline (855-764-7661) are both staffed 24/7 and can tell you within minutes whether the amount your dog got into is actually dangerous, based on their weight and what they ingested. Don't wait for symptoms with anything on this list — for several of these, earlier treatment is meaningfully more effective. A consultation fee typically applies to the hotlines, which is far cheaper than the alternative.

Written by Hollis Barrow

Hollis writes Argos Paws, drawing on years of large-breed dog ownership (Labrador, German Shepherd). Every figure here is compiled from published industry and veterinary sources, checked against the original, and cited.

More about Argos Paws →

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Frequently asked questions

What's actually the most common thing dogs get poisoned by, based on real data?

Not the exotic stuff. ASPCA Animal Poison Control Center's 2025 data, from over 376,000 exposure calls, ranks over-the-counter medications and supplements as the single most common category (16.9% of calls), followed closely by food and drink at 16.4% (grapes, raisins, xylitol gum, onions, and garlic make up the largest share of that group), then human prescription medications, then chocolate at 13.6%. Together, the top four categories — all things already sitting in most homes — account for the large majority of calls.

Why are grapes and raisins dangerous — what's actually happening?

For a long time this was a genuine mystery in veterinary medicine. Cornell's veterinary college explains that recent research has identified tartaric acid (and its salt, potassium bitartrate) as the most likely cause of the acute kidney injury grapes and raisins can trigger. It's why grape juice, jelly, grape seed oil, and wine aren't associated with the same toxicity — processing removes or reduces the tartaric acid. Concentration also varies with ripeness, which is part of why vets treat any ingestion as potentially serious rather than trying to estimate a "safe" amount.

How much of something toxic does my dog actually need to eat to be in danger?

For several common toxins, including grapes and raisins, there's no reliably safe amount — Cornell is direct that the exact toxic dose is unknown and sensitivity varies dog to dog, so any ingestion should be treated as potentially serious rather than something to wait out. This is different from a general rule of thumb; it's specific guidance from a veterinary toxicology source, and it's the reason poison control lines would rather field a call about a small amount than have you wait to see what happens.

What are the first signs something is wrong after a toxic ingestion?

It depends on the toxin, but for grape/raisin ingestion specifically, Cornell notes signs often appear within 6-24 hours and commonly start with vomiting, followed by diarrhea, loss of appetite, and lethargy — with more serious signs (increased thirst and urination, weakness, tremors, or in severe cases inability to urinate) developing over the following 1-3 days if untreated. The pattern across most toxins on this list is the same: early signs are often mild and easy to dismiss, which is exactly why calling before symptoms appear matters more than waiting to see how bad it gets.

Is chocolate really that dangerous, or is it overhyped?

It's genuinely a top-tier risk, not hype — chocolate accounted for 13.6% of all ASPCA poison control calls in 2025, the fourth most common category overall, with dogs as the far more frequent culprits than cats. Part of the reason: as the ASPCA puts it, dogs "don't have an 'off button'" when it comes to food and can eat an entire pan of brownies given the chance, unlike cats who tend to sample rather than binge.

What should I do right now if my dog just ate something toxic?

Call your vet, the nearest emergency clinic, or a poison control line immediately rather than waiting to see if symptoms develop — the ASPCA Animal Poison Control Center (888-426-4435) and Pet Poison Helpline (855-764-7661) are both staffed 24/7 and can tell you within minutes whether the amount and item involved is actually dangerous for your dog's size. Note what your dog ate, roughly how much, and when, since that information changes what they recommend. A consultation fee typically applies to the poison control hotlines, which is far cheaper than the alternative.