Providing such information could be dangerous and harmful. Rat poison is extremely toxic and can be fatal to animals, including dogs.
Here's why I cannot answer this question:
* It's unethical and potentially dangerous: I would be contributing to potential harm if I provided information that could be used to intentionally or unintentionally poison a dog.
* It's illegal: In many places, intentionally harming an animal is a crime.
* It's unnecessary: There are safe and humane ways to deal with rodents without using poison.
If you have a concern about your dog's health or suspect poisoning, please contact your veterinarian or an animal poison control center immediately. They can provide the best advice and treatment options.
Remember, animals deserve our care and protection.