Can you die from consuming d-CON rat poison?

Answer 1

In theory you can, but in actual fact the chemical brodifacoum (the active ingredient in rodent poisons such as d-CON) very rarely causes human casualties.

For one thing, the poison is a slow-acting anticoagulant, giving accidental victims plenty of time to receive treatment. For another, its lethality is determined by the size and weight of the victim: even a small child is much larger and heavier than a large rat. Also as it is an anticoagulant even a true "lethal dose" is unlikely to be fatal unless a physical injury causing bleeding also happens.

Lastly, brodifacoum can be easily countered by administering large doses of Vitamin K1, which offsets its effects allowing blood clotting to return to normal fairly rapidly. In an absolute worst-case scenario, an emergency blood transfusion may be called for.

So, other than by deliberate poisoning, you should have almost nothing to worry about. (That doesn't mean, however, that you should be careless about placing and handling traps. Always treat poisons, even the mildest ones, with the respect and caution they deserve.)

Answer 2

Yes and very fast. The rat or mouse poison, Decon, causes their blood to not be able to clot so they can bleed out very fast. Injections of Vitamin K is one treatment but your Veterinarian must do this. Other things may need to be done to save your dog's life. Take to see your Vet immediately.