daTeacha said:The common rodent poison -- D-con is one brand name -- is warfarin. It is very safe to use, being highly specific in its action and affecting rodents far more than it affects other critters.
I used to work for DuPont Pharmaceuticals, the warfarin patent holder prior to their acquisition by Bristol Meyers Squibb.
Warfarin is sold under the tradename Coumadin - the most popular "blood thinner" for people at risk for stroke or heart attacks.
Warfarin prevents the clotting mechanism from taking affect. The FDA considers it a Narrow Therapeutic Index" meaning a little bit will save your life but a little bit more will kill you. When it is first prescribed the dosage is closely monitored until the correct balance is struck.
It does not target rodents more than dogs or humans. It will affect them all. The lethal dose required to kill 50% of dosed dogs (LD50) is 300 mg/kg. That is a high dose. But lower doses can still have adverse effects.
I would not use it if I thought my dogs would be exposed by eating an exposed rat or its' carcass.
Phil