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Dog Poisoning: What to Do If Your Dog Eats Something Toxic

ByDerek

Updated September 2026

Dogs are remarkably good at finding things they were never supposed to eat.

Sometimes it is obvious: a box of chocolates has disappeared, a packet of raisins has been chewed open, or a dog has got into medication.

Other times you may simply realise that your dog has been chewing a plant, licking something from the pavement or investigating a spilt household product.

The most important thing to remember is this:

If you think your dog may have eaten, inhaled or come into contact with something poisonous, do not wait for symptoms before asking for veterinary advice.

Some toxins can take hours, or occasionally longer, before obvious signs appear. Acting early can make treatment easier and improve the chance of a good outcome.

For my wider emergency guidance, see Dog Health & First Aid: Practical Advice for Dog Owners.

Important: If your dog has collapsed, is having seizures, is struggling to breathe or is seriously unwell, contact a vet immediately. Do not delay urgent veterinary treatment while trying to identify the poison.

Key Takeaways

  • If you suspect dog poisoning, act quickly; contact your vet without waiting for symptoms.
  • Prevent further exposure by removing access to the suspected substance and encouraging your dog to drop it safely.
  • Do not induce vomiting at home unless a vet instructs you, as it can cause more harm.
  • Common poisons include human foods like chocolate and grapes, household products, and certain garden chemicals.
  • Utilise Animal PoisonLine for specialist advice, but always prioritise immediate vet contact for serious symptoms.

Table of contents

What should I do if I think my dog has been poisoned?

There are a few useful things you can do immediately.

Stop any further exposure

If you can do so safely, prevent your dog from eating, licking or coming into contact with any more of the suspected substance.

Move food, medication, chemicals or other materials out of reach.

If something is still in your dog’s mouth and they will safely drop it for food or a toy, encourage them to leave it rather than putting your hands into the mouth of a frightened dog.

PDSA recommends removing access to the toxin as the first step.

Contact your vet

Phone your veterinary practice and tell them that you suspect poisoning.

If your normal practice is closed, use their out-of-hours arrangements.

Don’t wait until your dog becomes ill to call. Some poisons can cause damage before symptoms become obvious.

Find out what your dog was exposed to

If possible, keep:

  • the packet or container
  • an ingredient list
  • a photograph of the product
  • a photograph of a plant
  • any remaining tablets or food
  • information about the strength or concentration of a product

Do not put yourself at risk trying to collect a toxic substance.

Your vet may need to know exactly what your dog encountered before deciding on appropriate treatment.

Work out roughly how much was involved

Your vet may ask:

  • what your dog ate or encountered
  • approximately how much
  • when it happened
  • your dog’s approximate weight
  • whether any symptoms have started
  • whether your dog takes medication
  • whether they have existing health conditions

You do not need perfect answers.

Give the best information you have and let the veterinary professional assess the risk.

Never try to make your dog vomit unless a vet tells you to

This is one of the most important pieces of poisoning first aid.

Do not try to make your dog sick at home unless a vet specifically instructs you to do so.

That includes using:

  • salt
  • salt water
  • hydrogen peroxide
  • mustard
  • oil
  • fingers in the throat
  • other home remedies

Whether vomiting is appropriate depends on what the dog swallowed, how long ago it happened and the dog’s condition.

With some substances, bringing them back up can cause additional damage.

Veterinary practices can make a dog vomit when appropriate using controlled medication, but the vet makes that decision.=

Do not give human medication or home remedies

Do not give milk, medication, charcoal, oil or another supposed antidote unless a veterinary professional specifically advises it for your dog’s situation.

Different toxins behave differently.

Something that is harmless in one situation may be unhelpful or dangerous in another.

Activated charcoal, for example, can form part of veterinary treatment for some poisonings, but that does not mean owners should automatically give it at home. (PDSA)

Signs of poisoning in dogs

No single set of poisoning symptoms exists because different substances affect the body in different ways.

Possible signs can include:

  • vomiting
  • diarrhoea
  • excessive drooling
  • weakness
  • wobbliness
  • unusual agitation
  • lethargy
  • loss of appetite
  • tremors or twitching
  • seizures
  • changes in heart rate
  • breathing difficulties
  • collapse

Skin exposure can cause irritation or pain, while inhaled toxins may cause coughing or breathing difficulties. (Vets Now)

However, the absence of symptoms does not mean the dog is safe.

That is why I would contact a vet based on the suspected exposure rather than waiting for symptoms.

Common causes of poisoning in dogs

Dogs can encounter potentially harmful substances almost anywhere.

Common categories include:

Human foods

Important examples include:

  • chocolate
  • grapes
  • raisins
  • sultanas
  • currants
  • onions
  • garlic and other alliums
  • products containing xylitol
  • alcohol
  • caffeine
  • macadamia nuts
  • mouldy food

My separate Toxic Foods for Dogs guide contains the detailed food information, rather than repeating a huge A-to-Z list here.

If your dog has eaten a potentially toxic food, contact your vet rather than trying to calculate a “safe” amount yourself.

Human medication

Always keep medicines securely out of reach.

That includes:

  • painkillers
  • antidepressants
  • heart medication
  • ADHD medication
  • vitamins and supplements
  • prescription medication
  • over-the-counter medicines

Never assume that a medication that is safe for a person is safe for a dog.

Household products

Potential hazards can include:

  • cleaning products
  • detergents
  • disinfectants
  • antifreeze
  • solvents
  • DIY products
  • batteries
  • paints and chemicals

Garden products

Dogs may also encounter:

  • slug and snail products
  • rat poison
  • pesticides
  • fertilisers
  • weed treatments
  • toxic plants
  • fungi

Things found on walks

Dogs do not restrict their scavenging to the house.

Depending on where you walk, they may investigate:

  • discarded food
  • medicines
  • chemicals
  • mushrooms
  • dumped garden waste
  • contaminated water
  • cigarette or nicotine products
  • rubbish around bins

This is one reason I watch what dogs are investigating rather than simply letting them disappear into undergrowth because they are “having a sniff”.

My dog ate grapes or raisins

Grapes, raisins, sultanas and currants deserve particular caution because they can cause serious kidney problems in dogs.

PDSA advises contacting your vet immediately if you believe your dog has eaten them and not waiting for symptoms.

That includes foods containing dried fruit, such as some:

  • cakes
  • fruit loaves
  • mince pies
  • Christmas puddings
  • cereals
  • snack bars

Do not assume that one or two must be harmless.

Contact your vet and let them assess the individual situation.

My dog ate chocolate

Chocolate contains substances dogs metabolise differently from us, and the risk varies according to:

  • the type of chocolate
  • how much was eaten
  • the dog’s weight
  • how long ago it happened

Dark chocolate and cocoa-rich products generally contain more theobromine than milk chocolate, but I would not spend valuable time trying to diagnose the risk myself.

Keep the wrapper if you have it and contact your vet.

My dog ate something containing xylitol

Xylitol is a sweetener that may appear on labels as xylitol and can also be referred to as birch sugar.

It can be dangerous to dogs.

If you discover that your dog has eaten a product containing xylitol, contact your vet promptly.

Check labels carefully rather than assuming that all products within a category, such as peanut butter, contain it.

What if the poison is on my dog’s coat or paws?

A dog may be exposed without initially eating the substance.

Paints, chemicals, oils and other products can get onto fur or paws and then be swallowed when the dog grooms themselves.

The priority is to:

  • stop your dog licking the contaminated area if possible
  • avoid getting the substance on yourself
  • move the dog away from the source
  • contact your vet for instructions

I would not automatically use solvents or household cleaning products to remove contamination.

What is appropriate depends on the substance involved.

Blue Cross advises contacting your vet even if you believe you’ve removed the contamination, because the dog may have already swallowed some of it.

What if my dog has inhaled something?

Smoke, fumes, aerosols and certain household or industrial chemicals can cause problems when inhaled.

Move away from the source and into fresh air only if it is safe for you to do so.

Do not enter an unsafe environment to rescue an animal.

Difficulty breathing, collapse or unconsciousness requires immediate veterinary help. (Vets Now)

Animal PoisonLine: specialist UK poisoning advice

UK dog owners also have access to Animal PoisonLine, a specialist 24-hour telephone service operated by the Veterinary Poisons Information Service.

It deals specifically with suspected poisoning and toxic exposures.

The service can help assess whether a pet needs veterinary treatment or whether veterinary attendance may not be necessary.

It is a paid telephone service.

However, Animal PoisonLine itself says that if your pet is already showing serious signs such as collapse, convulsions or breathing difficulties, you should contact your vet immediately instead.

Should I call my vet or Animal PoisonLine?

If your dog is already unwell, has collapsed, is having seizures, is struggling to breathe or obviously requires treatment:

Call your vet immediately.

If your dog appears well but you are unsure whether something they encountered is poisonous, you can contact your veterinary practice or use Animal PoisonLine for specialist toxicology advice.

Either way, I would not simply wait for symptoms.

What happens when a poisoned dog goes to the vet?

Treatment depends entirely on the substance involved, the amount, the time since exposure and how the dog is affected.

Veterinary treatment may include:

  • medication to induce vomiting when appropriate
  • activated charcoal in suitable cases
  • intravenous fluids
  • blood tests
  • medicines to control symptoms
  • monitoring
  • investigations or further treatment

Some swallowed objects are not poisons at all but can cause dangerous blockages.

For example, a corn cob, toy, sock or piece of packaging may create a completely different emergency from a toxin and may require imaging or surgery. (PDSA)

That is another reason it is important to tell the vet exactly what you think your pet has swallowed.

Poisoning is different from eating a foreign object

This distinction is useful.

Chocolate is a toxicity problem.

A swallowed sock is primarily a blockage problem.

A discarded chicken bone may injure or obstruct the digestive tract.

A product can sometimes create both chemical and physical risks.

If your dog has swallowed something that is not food, contact your vet even if it is not technically poisonous.

Prevention at home

The simplest poisoning emergency is the one that never happens.

At home I would pay particular attention to:

  • medication kept in closed cupboards
  • handbags containing medicines or chewing gum
  • chocolate and dried fruit
  • cleaning products
  • bins
  • compost
  • garden chemicals
  • garages and sheds
  • dropped tablets
  • children’s bags
  • food left on low tables

Dogs can be remarkably inventive.

Something that’s “out of the way” from a human perspective doesn’t necessarily mean a determined dog cannot reach it.

Prevention on walks

I prefer prevention and management to relying on a perfect “leave it” in every situation.

Useful habits include:

  • watching what your dog is sniffing
  • scanning ahead around bins and picnic areas
  • using an appropriate lead where scavenging is likely
  • teaching and practising a reward-based leave
  • teaching a useful drop
  • avoiding known contaminated areas
  • preventing access to discarded food rather than repeatedly testing the dog

For dogs that are persistent scavengers, speak to an appropriate force-free professional about management and training.

A properly fitted basket muzzle can also be a useful safety tool for some dogs because it can reduce scavenging while still allowing panting and drinking. Introduce it gradually and positively, rather than putting it on the dog as punishment.

Be cautious with social-media poisoning warnings

Local Facebook groups can help report something genuinely hazardous.

They can also spread frightening rumours extremely quickly.

An unverified post saying “dogs are being deliberately poisoned in this park” is not the same thing as confirmation from a veterinary practice, police or another reliable source.

If I see something genuinely suspicious on a walk, I avoid it.

But I would not want owners becoming frightened of every park because somebody shared an unsourced warning several hundred times.

If your own dog may actually have been exposed to something harmful, contact your vet regardless of what social media says.

First-aid training can help you prepare

One useful part of canine first-aid training is learning what not to do.

Poisoning is a good example.

Knowing that you should contact veterinary professionals rather than experimenting with salt water, human medication, or internet remedies can prevent an already worrying situation from becoming worse.

My Why Every Dog Owner Should Learn Canine First Aid guide explains the first-aid training I have completed and what I think owners should look for in a course.

Frequently asked questions

How quickly do dogs show signs of poisoning?

It depends on the substance. Some signs develop quickly, while other toxins may take hours or longer to cause obvious symptoms.

Do not wait for symptoms if you know or suspect your dog has been exposed to something harmful. Contact your vet.

Should I make my dog sick after poisoning?

No, not unless a veterinary professional specifically instructs you to do so.

Trying to make a dog vomit at home can cause additional harm.

Can I give my dog salt water to make them vomit?

No.

Do not use salt water or other home remedies to induce vomiting. Contact your vet.

My dog ate something poisonous but looks fine. Should I wait?

No.

Some toxins cause delayed symptoms. Contact your veterinary practice or appropriate poison advice service and let them assess the risk.

What information should I give the vet?

Try to provide the product or substance name, approximate amount, time of exposure, your dog’s weight and any symptoms.

Keep packaging or take photographs where it is safe to do so.

Can Animal PoisonLine tell me whether my dog needs a vet?

Animal PoisonLine is a UK 24-hour specialist poisoning advice service operated by VPIS. It can assess suspected exposures and advise whether veterinary treatment is required.

If your dog has already collapsed, is convulsing or is struggling to breathe, contact your vet immediately rather than delaying treatment.

Is every dangerous thing a poison?

No.

A dog may swallow something such as a corn cob, toy or sock that is not chemically poisonous but can cause a potentially life-threatening intestinal blockage. Contact your vet if your dog has swallowed something concerning.

For wider first-aid information, see Dog Health & First Aid: Practical Advice for Dog Owners.

For food-specific risks, continue to Toxic Foods for Dogs.

If you want to prepare before an emergency occurs, see Why Every Dog Owner Should Learn Canine First Aid.

You may also find Dog First Aid Kit for Home and Walks useful for practical emergency preparation.

Start with the guide that best matches what you need:

Veterinary disclaimer

I am a professional dog walker and hold canine first-aid qualifications and training. I am not a veterinary surgeon or veterinary toxicologist.

This page provides general first-aid awareness and does not diagnose poisoning, calculate toxic doses or recommend treatment for an individual dog.

If you think your dog has eaten, inhaled or come into contact with something potentially poisonous, contact a veterinary professional promptly. If your dog has collapsed, is having seizures, is struggling to breathe or is seriously unwell, seek urgent veterinary treatment.

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