Natamycin

Prescription

Nomes comerciais: NATACYN

Forma Farmacêutica

Drops

Via de Administração

OPHTHALMIC

Fabricante

Harrow Eye, LLC

About This Medication

DESCRIPTION: NATACYN™ (natamycin ophthalmic suspension) 5% is a sterile, antifungal drug for topical ophthalmic administration. Each mL of NATACYN™ (natamycin ophthalmic 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: C 33 H 47 NO 13 Molecular Weight: 665.73 g/mol 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. chemical

Princípios Ativos

Ingrediente	Concentração
Natamycin	-

Indicações e Uso

INDICATIONS AND USAGE: 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.

Posologia e Administração

DOSAGE AND ADMINISTRATION: SHAKE WELL BEFORE USING. The preferred initial dosage in fungal keratitis is one drop of NATACYN™ (natamycin ophthalmic suspension) 5% instilled in the conjunctival sac at hourly or two-hourly intervals. The frequency of application can usually be reduced to one drop 6 to 8 times daily after the first 3 to 4 days. Therapy should generally be continued for 14 to 21 days or until there is resolution of active fungal keratitis. In many cases, it may be helpful to reduce the dosage gradually at 4 to 7 day intervals to assure that the replicating organism has been eliminated. Less frequent initial dosage (4 to 6 daily applications) may be sufficient in fungal blepharitis and conjunctivitis.

Side Effects Overview

ADVERSE REACTIONS: The following events have been identified during post-marketing use of NATACYN ™ (natamycin ophthalmic suspension) 5% in clinical practice. Because they are reported voluntarily from a population of unknown size, estimates of frequency cannot be made. The events, which have been chosen for inclusion due to their seriousness, frequency of reporting, possible causal connection to NATACYN™ (natamycin ophthalmic suspension) 5%, or a combination of these factors include: allergic reaction, change in vision, chest pain, corneal opacity, dyspnea, eye discomfort, eye edema, eye hyperemia, eye irritation, eye pain, foreign body sensation, parethesia, and tearing.

Contraindicações

CONTRAINDICATIONS: NATACYN™ (natamycin ophthalmic suspension) 5% is contraindicated in individuals with a history of hypersensitivity to any of its components.

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DrugFYI

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Recursos Externos

Fonte: openfda

Última atualização: 2026-03-19

Frequently Asked Questions

INDICATIONS AND USAGE: 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 …

DOSAGE AND ADMINISTRATION: SHAKE WELL BEFORE USING. The preferred initial dosage in fungal keratitis is one drop of NATACYN™ (natamycin ophthalmic suspension) 5% instilled in the conjunctival sac at hourly or two-hourly intervals. The frequency of application can usually be reduced to one drop 6 to 8 times daily after the first 3 to 4 days. Therapy should generally be continued for 14 to 21 days or until there is resolution of active fungal keratitis. In many cases, it may …

CONTRAINDICATIONS: NATACYN™ (natamycin ophthalmic suspension) 5% is contraindicated in individuals with a history of hypersensitivity to any of its components.

Natamycin is a prescription medication. You will need a valid prescription from a licensed healthcare provider.

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References & Data Sources

• DailyMed — Natamycin drug label (National Library of Medicine)
• openFDA — Natamycin label data (U.S. Food & Drug Administration)
• RxNorm — RXCUI 204451 (NLM Normalized Drug Names)
• NDC Directory — Natamycin (FDA National Drug Code)

Aviso Médico

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Sempre busque o aconselhamento do seu médico ou outro profissional de saúde qualificado para quaisquer dúvidas que você possa ter sobre uma condição médica ou medicamento.

Fontes de dados: DailyMed (NLM), openFDA, MFDS