Used it as directed for about 2 days and noticed lab not was not eating his poop. He would go near it, take a sniff and walk away. We used it a total of approx. 5 days and stopped. After about 3 weeks, I noticed he was eating it again. Disgusting hog. Started it back up and he stopped in one day, continued for about days and stopped. It has been about a month and a half now, and thank God, he is still off the feces train!! If not, I will use it again.