Zentomyces is an oral powder containing saccharomyces boulardii 100ng used in the treatment of acute diarrhea in adults and children. In addition, the drug combined with oral rehydration, prevents recurrence of diarrhea caused by Clostridium difficile. During the use of Zentomyces, there may be some unwanted side effects including: erythema, itching, allergic reactions... Therefore, before using the drug, it is necessary to consult the treating doctor. .