David from Bronx,ny writes
The Contrac Blox does not stop the reproduction of rodents. Contrac Blox is an anti-coagulant which means once the mice eat this product they begin to bleed to death from the inside. The mice first become sick, and then grow tired and weak and pass in their sleep. It can take anywhere from a few hours to a few days depending on how much the mice have eaten. They do not need water for the product to work.
Answer last updated on: 09/27/2013
