<p>Nystatin has fungistatic or fungicidal activity against variety of pathogenic and nonpathogenic yeast and fungi, including Candida albicans. Nystatin exerts its antifungal activity by binding to sterols in the&nbsp;fungal cell membrane. As a result of binding, the membrane is no longer able to function as a selective barrier, and potassium and other cellular constituents are lost. It is poorly absorbed from the gastrointestinal tract.</p>