NEPAFENAC — nepafenac suspension
Alcon Laboratories, Inc.
Nepafenac ophthalmic suspension, 0.3% is indicated for the treatment of pain and inflammation associated with cataract surgery.
One drop of Nepafenac ophthalmic suspension, 0.3% should be applied to the affected eye one-time-daily beginning 1 day prior to cataract surgery, continued on the day of surgery and through the first 2 weeks of the postoperative period. An additional drop should be administered 30 to 120 minutes prior to surgery.
Nepafenac ophthalmic suspension, 0.3% may be administered in conjunction with other topical ophthalmic medications such as beta-blockers, carbonic anhydrase inhibitors, alpha-agonists, cycloplegics, and mydriatics.
If more than one topical ophthalmic medication is being used, the medicines must be administered at least 5 minutes apart.
Sterile ophthalmic suspension 0.3%
1.7 mL in a 4 mL bottle
Nepafenac ophthalmic suspension, 0.3% is contraindicated in patients with previously demonstrated hypersensitivity to any of the ingredients in the formula or to other NSAIDs.
With some nonsteroidal anti-inflammatory drugs including Nepafenac ophthalmic suspension, 0.3%, there exists the potential for increased bleeding time due to interference with thrombocyte aggregation. There have been reports that ocularly applied nonsteroidal anti-inflammatory drugs may cause increased bleeding of ocular tissues (including hyphema) in conjunction with ocular surgery.
It is recommended that Nepafenac ophthalmic suspension, 0.3% be used with caution in patients with known bleeding tendencies or who are receiving other medications which may prolong bleeding time.
Topical nonsteroidal anti-inflammatory drugs (NSAIDs) including Nepafenac ophthalmic suspension, 0.3%, may slow or delay healing. Topical corticosteroids are also known to slow or delay healing. Concomitant use of topical NSAIDs and topical steroids may increase the potential for healing problems.
Use of topical NSAIDs may result in keratitis. In some susceptible patients, continued use of topical NSAIDs may result in epithelial breakdown, corneal thinning, corneal erosion, corneal ulceration or corneal perforation. These events may be sight threatening. Patients with evidence of corneal epithelial breakdown should immediately discontinue use of topical NSAIDs including Nepafenac ophthalmic suspension, 0.3% and should be closely monitored for corneal health.
Postmarketing experience with topical NSAIDs suggests that patients with complicated ocular surgeries, corneal denervation, corneal epithelial defects, diabetes mellitus, ocular surface diseases (e.g., dry eye syndrome), rheumatoid arthritis, or repeat ocular surgeries within a short period of time may be at increased risk for corneal adverse events which may become sight threatening. Topical NSAIDs should be used with caution in these patients.
Postmarketing experience with topical NSAIDs also suggests that use more than 1 day prior to surgery or use beyond 14 days post surgery may increase patient risk and severity of corneal adverse events.
Nepafenac ophthalmic suspension, 0.3% should not be administered while using contact lenses.
Because clinical studies are conducted under widely varying conditions, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to the rates in the clinical studies of another drug and may not reflect the rates observed in practice.
The following adverse reactions are discussed in greater detail in other sections of labeling.
- Increased Bleeding Time (Warnings and Precautions 5.1)
- Delayed Healing (Warnings and Precautions 5.2)
- Corneal Effects (Warnings and Precautions 5.3)
The most frequently reported ocular adverse reactions following cataract surgery were capsular opacity, decreased visual acuity, foreign body sensation, increased intraocular pressure, and sticky sensation. These reactions occurred in approximately 5 to 10% of patients.
Other ocular adverse reactions occurring at an incidence of approximately 1 to 5% included conjunctival edema, corneal edema, dry eye, lid margin crusting, ocular discomfort, ocular hyperemia, ocular pain, ocular pruritus, photophobia, tearing and vitreous detachment.
Some of these reactions may be the consequence of the cataract surgical procedure.
Non-ocular adverse reactions reported at an incidence of 1 to 4% included headache, hypertension, nausea/vomiting, and sinusitis.
Pregnancy Category C: Reproduction studies performed with nepafenac in rabbits and rats at oral doses up to 10 mg/kg/day have revealed no evidence of teratogenicity due to nepafenac, despite the induction of maternal toxicity. At this dose, the animal plasma exposure to nepafenac and amfenac was approximately 70 and 630 times human plasma exposure at the recommended human topical ophthalmic dose for rats and 20 and 180 times human plasma exposure for rabbits, respectively. In rats, maternally toxic doses ≥ 10 mg/kg were associated with dystocia, increased postimplantation loss, reduced fetal weights and growth, and reduced fetal survival.
Nepafenac has been shown to cross the placental barrier in rats. There are no adequate and well-controlled studies in pregnant women. Because animal reproduction studies are not always predictive of human response, Nepafenac ophthalmic suspension, 0.3% should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.
Because of the known effects of prostaglandin biosynthesis inhibiting drugs on the fetal cardiovascular system (closure of the ductus arteriosus), the use of Nepafenac ophthalmic suspension, 0.3% during late pregnancy should be avoided.
Nepafenac is excreted in the milk of lactating rats. It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when Nepafenac ophthalmic suspension, 0.3% is administered to a nursing woman.
The safety and effectiveness of Nepafenac ophthalmic suspension, 0.3% in pediatric patients below the age of 10 years have not been established.
No overall differences in safety and effectiveness have been observed between elderly and younger patients.
Nepafenac ophthalmic suspension, 0.3% is a sterile, topical, nonsteroidal anti-inflammatory (NSAID) prodrug for ophthalmic use. Each mL of Nepafenac ophthalmic suspension, 0.3% contains 3 mg of nepafenac. Nepafenac is designated chemically as 2-amino-3-benzoylbenzeneacetamide with an empirical formula of C15 H14 N2 O2 . The structural formula of nepafenac is:
Nepafenac is a yellow crystalline powder. The molecular weight of nepafenac is 254.28. Nepafenac ophthalmic suspension, 0.3% is supplied as a sterile, aqueous suspension with a pH approximately of 6.8.
The osmolality of Nepafenac ophthalmic suspension, 0.3% is approximately 300 mOsm/kg.
Each mL of Nepafenac ophthalmic suspension, 0.3%, contains: Active: nepafenac 0.3% Inactives: boric acid, propylene glycol, carbomer 974P, sodium chloride, guar gum, carboxymethylcellulose sodium, edetate disodium, benzalkonium chloride 0.005% (preservative), sodium hydroxide and/or hydrochloric acid to adjust pH and purified water, USP.
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