AOR Saccharomyces Boulardii - Saccharomyces boulardii is a non-pathogenic yeast, shown to be effective against intestinal complications induced by antibiotics and clostridium difficile, such as diarrhea and other forms of intestinal discomfort. Saccharomyces boulardii significantly reduces both the risk and the duration of diarrhea. It has also been used to treat acute diarrhea and gastroenteritis in children with good results.