Mouse & Rat Bait Active ingredient in Agrid3 is cholecalciferol or vitamin D3. When ingested, it mobilizes calcium from the rodent's bones into its bloodstream, producing hypercalcemia and heart failure. Agrid3 acts faster than anticoagulants, causing death in 2 to 4 days, with feeding stopping immediately once the rodent eats a lethal dose. Testing has shown this bait to be highly effective, even against anticoagulant resistant rodent populations.
Very little risk of secondary poisoning (e.g., if your cat or dog catches a poisoned mouse). However, pets and children should be kept from being able to access and/or consume the bait (please note that rodents may move the bait around, so exercise vigilance and caution if pets and/or children are a factor).