April from New Jersey writes
The kill time for Rat X can take anywhere between 5-7 days. The mice and rats will eat the bait like a food source and Rat X will cause dehydration. Mice and rats have stomach sensors that tells them when they are thirsty. When they eat this bait, it turns off their stomach sensors and it can no longer tell their brain to drink water. They have no desire for drinking water so they will just go back to their burrow, and begin the cycle - dehydration, failing kidneys, coma and then death.
Answer last updated on: 10/14/2014
