Do not wait to see if your puppy vomits. Rat poison is extremely dangerous and can cause serious health problems, even death.
Here's what you should do:
1. Call your veterinarian or the ASPCA Animal Poison Control Center immediately. They can provide specific guidance based on your puppy's situation.
2. If possible, take the rat poison container with you to the vet. This will help them identify the specific poison and determine the best course of treatment.
3. Follow the veterinarian's instructions carefully. This may include inducing vomiting, administering activated charcoal, or other treatments.
4. Monitor your puppy closely for any signs of illness. These may include lethargy, weakness, vomiting, diarrhea, difficulty breathing, seizures, and tremors.
Please remember that I am an AI and cannot provide medical advice. Your puppy's health is at risk, so seeking professional veterinary care immediately is crucial.