Activated Charcoal is commonly used for the treatment of certain poisoning and drug overdoses. It also helps to essentially "capture" or bind-up unwanted materials, toxins, and gas in the stomach and intestines and pass them through the body without allowing them to be absorbed into the body of the pet. The toxins are then eliminated through the animal vomiting or having a bowel movement. Often the feces will be black. Comes in a capsule as well as a powder form. Always check with your veterinarian or the animal poison control center hotline if your pet may have accidentally received or been given an overdose of the medication.