By Dial A Vet Veterinary Team
This page focuses on dogs. For a multi-species overview, see antifreeze (ethylene glycol) poisoning in pets.
If your dog may have licked coolant, puddles in the garage or driveway, or a spilled container, seek emergency veterinary care immediately.
Key takeaways
- Ethylene glycol tastes sweet to many dogs, which increases ingestion risk.
- Early signs may include vomiting, ataxia (drunken gait), and increased thirst/urination.
- Later stages can involve severe kidney injury and reduced urine output.
- Antidotal and supportive care are most effective early; do not wait for "proof" of illness.
- Never use home remedies instead of emergency care.
Common signs in dogs
- Vomiting, drooling, lethargy
- Wobbliness, seeming intoxicated
- Increased thirst and urination early
- Depression, seizures, or collapse as illness progresses
- Decreased urine production in later kidney-injury stages
What to do
- Call an emergency clinic with product name, amount estimate, and timing.
- Bring the container or label if safe.
- Do not induce vomiting unless a veterinarian tells you to for this exposure.
- Keep the dog from further access to spills.
Treatment overview
- Stabilization and diagnostics (including kidney values)
- Antidotal therapy when appropriate for ethylene glycol
- IV fluids and hospital monitoring
- Additional therapies for complications as needed
Prevention
- Store antifreeze locked away; clean spills at once
- Check under cars for leaks
- Supervise dogs in garages and driveways after vehicle work
FAQ
How fast do signs appear?
Often within hours, but timing varies. Lack of immediate signs does not mean the exposure is safe.
Is propylene glycol coolant harmless?
Some products use different ingredients and may be less toxic, but any ingestion still warrants veterinary advice. Confirm the chemical on the label.
Talk with a vet
Suspected exposure: emergency hospital now. Aftercare questions: dialavet.com.
References
- Merck Veterinary Manual. Ethylene glycol toxicosis in animals.
- Pet Poison Helpline. Antifreeze.
- VCA Animal Hospitals. Ethylene Glycol (Antifreeze) Poisoning in Dogs.
Disclaimer: Educational only. Antifreeze ingestion in dogs is a veterinary emergency.