Hello. My name is***** will be happy to help you. This is an extremely toxic
rodenticide. If he just ingested it (within 4 hours), I would give him 3% hydrogen peroxide orally to induce vomiting. 1 Tablespoon (15ml) per 15 lbs of body weight should do. You can repeat in 10 minutes if no vomiting occurs. If it has been over 4 hours, inducing vomiting most likely won't do any good. No matter if you induce vomiting or not, though, he needs to get to your vet's office ASAP. Even after vomiting some of it up, it is very likely that he has still absorbed some of this toxin. It will cause him to be unable to clot his blood, which will lead to bleeding
from different orifices and into the abdomen and chest until they bleed out. Signs typically take 5-7 days to start showing, so they don't showing signs immediately, but you do not want them to get to that point. Your vet may induce further vomiting, give activated charcoal to bind the toxin, check blood work and start on Vitamin K, which is needed for clotting (this toxicity block the natural production of Vitamin K in the liver). Please let me know if you have any other questions or concerns. Hope this helps.
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