Natamycin is an antifungal medication that is commonly used in the form of eye drops to treat various fungal infections of the eye, such as fungal blepharitis, conjunctivitis, and keratitis. It belongs to the class of medicines known as tetraene polyene antibiotics. This article provides comprehensive information about Natamycin eye drops, including their uses, dosage, side effects, precautions, and drug interactions. Natacyn is another brand name for Natamycin.