Pet Poison Dose Checker: Is What My Dog or Cat Ate Actually Dangerous?

Not unless a vet or a poison service has specifically told you to. Cornell’s veterinary college puts it directly: do not try to make the animal vomit unless you have been specifically told to The AVMA says to always contact your veterinarian or poison control centre before inducing vomiting. Merck lists salt, syrup of ipecac and finger-down-the-throat as inappropriate methods. It is also actively dangerous after corrosive substances, petroleum products, or if your pet is drowsy or unsteady — and there is no safe way to do it at home in a cat, because hydrogen peroxide must not be used in cats.

There is no honest dose answer, and anyone who gives you one is guessing. Merck now attributes grape toxicity to tartaric acid, whose concentration varies from fruit to fruit — so the same weight of grapes is not the same dose twice. What Merck does give is a risk trigger: more than one grape or raisin per 4.5 kg of body weight may contain enough tartaric acid to risk kidney damage. For a small dog, one grape can cross that line. Phone rather than wait.

It depends on three things: the type of chocolate, the amount, and your dog’s weight. Merck’s bands are 20 mg/kg of methylxanthine for mild signs, 40-50 for heart effects and 60 or more for seizures. Because dark chocolate carries about 5.3 mg per gram and milk chocolate about 2.3, two 10 g squares of dark chocolate is around 106 mg — which is under the mild band for a 10 kg dog but over it for a 3 kg one. That is exactly the calculation the tool at the top of this page does for you.

For several of these, yes — and this is the most important thing on the page. Onion and garlic damage red blood cells slowly, with anaemia typically appearing three to five days later. Anticoagulant rat bait causes no visible bleeding for three to seven days. Xylitol liver injury may not show for 24-48 hours. Antifreeze has a deceptive middle stage where the animal appears to improve while the kidneys are failing. Looking fine tonight is not evidence that nothing happened.

It depends where you are. In the UK, Animal PoisonLine charges £35 in daytime hours and £45 otherwise, and it is a triage service run by the same organisation that advises vets — it can tell you whether you need to go in at all, which is usually cheaper than an out-of-hours consultation. In the US, Pet Poison Helpline is $89 per incident including follow-up calls with your vet. In France, the centre at Nantes is free. Your own vet is always a valid first call, and if your pet is already unwell, skip the helpline and go.

Lilies and cats. The FDA states that if treatment is delayed 18 hours or more after a cat ingests a true lily or daylily, the cat will generally have irreversible kidney failure — and the exposure can be as small as licking pollen off its fur or drinking vase water. Antifreeze is second: the antidote window for a dog is 8-12 hours.

Because no usable threshold has been published for them, and inventing one would be worse than useless in an emergency. Nicotine, lilies, permethrin on cats, anticoagulant rat bait, sago palm and raw bread dough all fall into this category. For grapes the literature gives a risk trigger rather than a dose curve. Saying so is more useful than a fake number that reads as reassurance.

No, and it is not designed to. It does one narrow job — turning what your pet ate and what it weighs into a dose you can compare against published veterinary thresholds, so that you can have a more useful conversation faster. The AVMA’s framing is the right one: first aid care is not a substitute for veterinary care, but it may save your pet’s life until it receives veterinary treatment.

Merck states that clinical signs of chocolate toxicosis usually occur within 6-12 hours after ingestion, and that in severe cases they may persist for up to 72 hours. The figure that surprises people is the half-life: theobromine’s half-life in dogs is 17.5 hours, so this is a day-long problem rather than an evening one. An empty first six hours is expected, not reassuring. The timeline on this page shows you where in that window you currently are.

It depends entirely on the substance, and the range is far wider than most people expect. Macadamia signs appear within 12 hours. Chocolate runs 6-12 hours for onset. Xylitol needs liver enzymes checked for at least 72 hours. Onion and garlic damage peaks at 72 hours with anaemia typically appearing 3-5 days later. Anticoagulant rat bait shows nothing at all for the first two to five days and bleeding at 3-7 days. Cholecalciferol needs blood calcium and phosphorus checked at 72-96 hours. Our timeline gives the published window for each one.

Honestly: for most substances, no published veterinary reference says. Of the eighteen substances on this page, exactly one — cholecalciferol — carries a sentence amounting to an all-clear, and even that one turns on a blood test rather than on how the animal looks: Merck says patients that remain clinically normal and maintain stable, normal calcium and phosphorus values 72-96 hours after ingestion would not be expected to develop signs. Macadamia and THC have published recovery times. For the other fifteen the reference stops before the question does, and we say so rather than inventing a number.