How long after eating rat poison does a dog die?

After a dog accidentally eats a large amount of rat poison, it usually dies within half an hour to 24 hours; the exact time depends on the type and concentration of the poison and the amount ingested. Generally, after a dog eats rat poison, the toxin spreads through its whole body within about half an hour. With strong poison and a large dose, the dog may die within half an hour.

With weak poison and a small dose, timely treatment usually means the dog will not die, but treatment must be prompt to prevent the harmful substance from accumulating in the dog’s liver, kidneys, heart, and other organs and causing greater harm.