Many pet owners are aware that antifreeze is toxic to dogs, however not all people realize how lethal antifreeze poisoning can really be. Consumption of even a small amount of antifreeze can quickly result in death. 

Antifreeze poisoning is very common during winter; however exposure to this toxic substance can occur any time of the year. Dogs may have access to antifreeze in the garage or storage area, driveways, and roads. Aside from ingestion, this toxic substance can also be absorbed through the skin. Antifreeze has a sweet taste, thereby easily attracting dogs. 

While some types of antifreeze are more poisonous than others, they share a common ingredient called ethylene glycol. Less toxic antifreeze contains propylene glycol or methanol as the active ingredient. 

The severity of toxicity will depend on the dose and the weight of dogs. One to two tablespoons of antifreeze can kill a 10-pound dog. Younger dogs may also be more susceptible. 

The onset of symptoms is very quick, and the initial signs may resemble alcohol intoxication. Dogs usually die from kidney failure within 36-72 hours post-intoxication.

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