I am very happy with this product. This really works to slow down the diarrhea, and reduce dehydration. It doesn't kill or treat any parasites or bacteria or giardia or any of those types of "root causes" of diarrhea - but I like to give it "in between" the other meds. Since it has kaolin (clay) in it, I prefer to give it two hours before or after any other medicine - so that the clay doesn't absorb the medicine. This product helped me save the life of a small kitten with severe diarrhea, because the other medicine she was on (for coccidia) took some time to work - so in the meantime, the poor kitten was losing all her hydration, nutrients, as well as much of the medicine, out the back end. Plus, the backs of her legs were raw. This product slowed down her diarrhea well enough for the medicine to work, and also helped her retain more of her food. She got better, and her legs healed fine too!