You do not tear open the Contrac Meal Place Pack Box (174 x 1.5 oz pack). The rodents will eat through the paper to get to the meal.
The Contrac Meal Place Packs will last 2-3 years if unopened and stored at room temperature.
Per the Contrac Meal Place Packs label, you should, maintain an uninterrupted supply of fresh bait for at least 15 days or until signs of mouse activity cease to appear.
Contrac can be toxic to animals if enough is consumed, although an antidote, Vitamin K1 is readily available from your vet. If you believe your pet consumed any amount of this product, it is important to contact your vet or pet poison control as soon as possible
The risk of secondary poisoning with Contrac is very minimal. A rodent only consumes a very small amount of bait at a time and passes it very quickly only keeping a smaller amount in their liver until they succumb to the effects of the bait. A pet would have to actually eat 20-30 rodents that have consumed the bait for it to have an effect. In most cases well fed domesticated animals will not actually eat a mouse or a rat that they come across. Instead they will play with it, chew it and then leave it behind.
Contrac Meal Place Pack Box is only labeled for Norway Rat, Roof Rat and House Mouse. Bonide MoleMax Mole and Vole Repellent Granules can be used anytime you notice activity from burrowing animals in your lawn or garden.
There are 174 of the 1.5 oz. packs in the Contrac Meal Place Pack box.
Rodents will die within 1-5 days after consuming a lethal dose of Contrac Meal Place Pack Rodenticide.