Nystat TabDESCRIPTIONNystatin is an antifungal antibiotic that is both fungistatic and fungicidal in vitro against a variety of yeasts and yeast-like fungi. It is a Polyene antibiotic that is obtained from Streptomyces noursei.COMPOSITIONTablet : Each film-coated tablet contains Nystatin BP 500000 u..