Antifreeze and Rat Poison: The Two Garage Emergencies

Antifreeze and rodenticide are the two household products most likely to kill a dog, and both share the same cruel pattern: highly treatable in the first hours, often untreatable once symptoms arrive. If there is any chance of exposure, call your vet or an animal poison control line immediately with the product name, the amount and the time — do not wait to see whether your dog gets sick.

Antifreeze: sweet, common, and fast

Engine coolant contains ethylene glycol in most formulations. It tastes sweet, dogs will drink it voluntarily, and a spilled radiator puddle in a driveway or a car park is a realistic source. Windscreen de-icer, some brake fluids and certain portable-toilet chemicals can contain it too.

The dangerous part is the timeline. Early signs look like drunkenness — wobbliness, vomiting, unusual thirst and urination — and they often fade. People read that improvement as recovery. It is not. The metabolites that damage the kidneys are still forming, and by the time kidney failure is obvious, the treatment window has usually closed.

There is a specific antidote, and it works on a clock. That is the entire reason for calling before symptoms appear.

Do not attempt to treat this at home in any form. There is a persistent internet claim about giving alcohol as a home antidote — that is a veterinary treatment given under monitoring, not a kitchen procedure, and doing it yourself can make a dog too unstable to treat.

Rodenticide: one word on the box changes everything

"Rat poison" is not one product. Modern baits use several completely different active ingredients with completely different effects, antidotes and monitoring schedules. Some have an antidote, some have none. This is why veterinary staff always ask for the packaging.

Two practical consequences. First, keep the packet or photograph the label — the colour of the pellets tells you nothing reliable. Second, a dog that looks fine is not cleared; with the anticoagulant group especially, the first visible sign can be days later and can be internal bleeding.

If the product was a phosphide, mention it on the phone before you get in the car. The gas it produces in a dog's stomach is genuinely hazardous to people in an enclosed vehicle, and staff will want the windows down.

Other garage and shed hazards

While you are in there, the same locked-cupboard rule applies to:

• Slug and snail bait — metaldehyde causes rapid, severe tremors
• Windscreen washer fluid — often methanol
• Paint stripper, white spirit and petrol — corrosive or aspiration risks
• Ice melt and de-icing salt — see cold-weather limits and winter salt
• Fertiliser, bone meal and cocoa-shell mulch
• Batteries — chewed cells cause burns, not just an upset stomach

What to do in the first hour

1. Move the dog away and secure the source. If it is a spill, keep other animals off it too.
2. Grab the container, the bait station, or a photo of the label. Active ingredient and concentration are the two things that matter.
3. Estimate the amount and note the time.
4. Call — your vet, an emergency hospital, or an animal poison control line.
5. Do not induce vomiting on your own initiative. Follow whatever the professional on the phone tells you and nothing else.
6. Go where they send you, and take the packaging with you.

The general procedure, including what they will ask, is in what to do right now.

Storage that removes the problem

Coolant goes in a sealed container on a high shelf, and spills get cleaned up immediately rather than "later" — a driveway puddle is a hazard to neighbourhood dogs and cats as well as yours. Consider a propylene glycol coolant where your vehicle allows it; it is not harmless, but it is a meaningfully lower risk than ethylene glycol.

For rodents, prefer physical traps in places a dog cannot reach, and if you use bait, keep the box and tell anyone who walks your dog where the stations are. If a pest control company treats your property, ask for the product name in writing and file it with your first-aid kit. The day you need that piece of paper, you will need it fast.