Natoph (Natamycin) Eye Drops is a sterile antifungal Ophthalmic Suspension Natamycin is a polyene antibiotic obtained from Streptomyces natalensis. Indicated for the treatment of Blepharitis, Conjunctivitis & Keratitis due to susceptible fungi, including Fusarium solani. Natoph is available as 5 ml sterile eye drops.