Ans - Saccharomyces boulardii is a "probiotic," a beneficial organism that aids in the battle against disease-causing bacteria and yeast in the gut.When taken by mouth for up to 15 months, Saccharomyces boulardii is LIKELY SAFE for most adults. Some people can experience gas as a result of it. It can, on rare occasions, result in fungal infections that spread throughout the body through the bloodstream (fungemia).Special Precautions & Warnings:Children, to be precise. When taken by mouth, Saccharomyces boulardii is POSSIBLY SAFE for infants. Before using Saccharomyces boulardii, a healthcare provider should assess diarrhoea in infants.Pregnancy and Breast-Feeding: There is insufficient credible information on the protection of taking Saccharomyces boulardii while pregnant or nursing.Critically ill people, people with a compromised immune system, and people taking immune-suppressing medications may be at an elevated risk of developing a yeast infection that spreads to the bloodstream and the rest of the body (fungemia) if they take Saccharomyces boulardii. While Saccharomyces normally do not cause disease, it has been linked to fungemia in a number of people, mostly those with a weakened immune system.Yeast Allergy: People with yeast allergies can be allergic to products that contain Saccharomyces boulardii, so these products should be avoided.