My brother's puppy ate some D-Con rat/mouse poison, not very much but she is a small pup only about 10lbs. The vet is closed, he has no where to take her. What can be given to help this pup??? She ate it sometime this morning. I've been reading on vitamin K, and I'm wondering if they sell VitaminK at wal mart for ppl if it's something that can be given to pups and what the dosage is. She's about 10wks old right now. Thanks!!! ETA: they said it looks like 1/4 to 1/3 of the tray of poison is gone, so that's how much the pup would have eaten.