Kaolin (USP) Pre-Mix For internal use: this is the active clay used in Kaopectate™ and other anti-diarrhea formulas.
The version we use has been processed to meet USP (United States Pharmacopaeia) standards of purity. There is nothing new about the application of clay to treat diarrhea and dysentery -- the British used this clay as a standard issue, going back to World War I, to provide soldiers in the field with relief from pathogenic bacteria, parasites, and protozoa that would infect their troops in foreign areas of military engagement.