How long does bob martin dewormer take to kill round worms?

The time it takes for Bob Martin's dewormer to kill roundworms can vary depending on the severity of the infestation and the individual cat's response to the medication. In general, it can take anywhere from 24 to 48 hours for the dewormer to take full effect and kill all the roundworms in the cat's system. However, it's important to follow the instructions provided by the manufacturer and complete the full course of treatment to ensure that all the worms are eliminated.