NATACYN
RxNorm 204451· NATAMYCIN· OPHTHALMIC
Polyene Antimicrobial [EPC] · Eyevance Pharmaceuticals, LLC
Indications and usage
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.
Dosage and administration
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.
Contraindications
CONTRAINDICATIONS: NATACYN ® (natamycin ophthalmic suspension) 5% is contraindicated in individuals with a history of hypersensitivity to any of its components.
Pregnancy
Pregnancy: Animal reproduction studies have not been conducted with natamycin. It is also not known whether natamycin can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. NATACYN ® (natamycin ophthalmic suspension) 5% should be given to a pregnant woman only if clearly needed.
Adverse events
Most frequently reported events (FDA FAERS). Report frequency does not imply causation.
- drug ineffective102
- condition aggravated77
- off label use63
- somnolence42
- eye pain40
- abdominal distension39
- persistent genital arousal disorder39
- vomiting39
- abdominal pain38
- appendicitis37
- appendicolith37
- ascites37
- nausea37
- dry mouth36
- ventricular fibrillation36
- constipation35
Adverse reactions (label)
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.
View more: Full FDA label on DailyMed →Label effective 20251105