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NATACYN® (natamycin ophthalmic suspension) 5% is indicated for the treatment of fungal blepharitis, conjunctivitis, and keratitis caused by susceptible organisms including Fusarium solani keratitis. As in other forms of suppurative keratitis, initial and sustained therapy of fungal keratitis should be determined by the clinical diagnosis, laboratory diagnosis by smear and culture of corneal scrapings and drug response. Whenever possible the in vitro activity of natamycin against the responsible fungus should be determined. The effectiveness of natamycin as a single agent in fungal endophthalmitis has not been established.
NATACYN® (natamycin ophthalmic suspension) 5% is a sterile, antifungal drug for topical ophthalmic administration. Each mL of the suspension contains: Active: natamycin 5% (50 mg). Preservative: benzalkonium chloride 0.02%. Inactive: sodium hydroxide and/or hydrochloric acid (neutralized to adjust the pH), purified water.
The active ingredient is represented by the chemical structure:
Established name: Natamycin
Molecular Formula: C33H47NO13
Molecular Weight: 665.73
Chemical name: Stereoisomer of 22-[(3-amino-3,6-dideoxy- β-D-mannopyranosyl)oxy]-1,3,26- trihydroxy-12- methyl-10-oxo-6,11,28- trioxatricyclo[22.3.1.05,7] octacosa-8,14,16,18,20-pentaene-25- carboxylic acid.
Other: Pimaricin
The pH range is 5.0 – 7.5.