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Neomycin (EENT)
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  • AHFS Monographs

Neomycin (EENT)

Class: Antibacterials
ATC Class: S01AA03
VA Class: OT101
CAS Number: 1405-10-3
Brands: Casporyn HC

Introduction

Antibacterial; aminoglycoside antibiotic.

Uses for Neomycin (EENT)

Bacterial Ophthalmic Infections

Used in fixed combination with other anti-infectives (i.e., polymyxin B and bacitracin; polymyxin B and gramicidin) for topical treatment of superficial infections of the eye (e.g., conjunctivitis, keratitis, keratoconjunctivitis, blepharitis, blepharoconjunctivitis) caused by susceptible bacteria.

Mild, acute bacterial conjunctivitis often resolves spontaneously without anti-infective treatment. Although topical ophthalmic anti-infectives may shorten time to resolution and reduce severity and risk of complications, avoid indiscriminate use of topical anti-infectives. Treatment of acute bacterial conjunctivitis generally is empiric; use of a broad-spectrum topical ophthalmic antibacterial usually recommended. In vitro staining and/or cultures of conjunctival material may be indicated in management of recurrent, severe, or chronic purulent conjunctivitis or when acute conjunctivitis does not respond to initial empiric topical treatment.

Because bacterial keratitis may be associated with subsequent loss of vision as the result of corneal scarring or topographic irregularities and because untreated or severe bacterial keratitis may result in corneal perforation with potential for endophthalmitis and possible loss of the eye, optimal management involves rapid evaluation and diagnosis, timely initiation of treatment, and appropriate follow-up. Treatment of community-acquired bacterial keratitis generally is empiric; use of a broad-spectrum topical ophthalmic antibacterial usually recommended. Subconjunctival anti-infectives may be necessary if scleral spread or perforation is imminent. In vitro staining and/or cultures of corneal material are indicated in management of keratitis involving corneal infiltrates that are central, large, and extend to the middle to deep stroma; when keratitis is chronic or unresponsive to broad-spectrum topical anti-infective treatment; or when atypical features suggest fungal, amebic, or mycobacterial infection.

Bacterial Otic Infections

Used in fixed combination with colistin and hydrocortisone acetate or in fixed combination with polymyxin B and hydrocortisone for topical treatment of superficial infections of the external auditory canal (otitis externa) caused by susceptible bacteria. Also used for topical treatment of infections of mastoidectomy or fenestration cavities caused by susceptible bacteria.

Diffuse, uncomplicated acute otitis externa in otherwise healthy patients usually treated initially with topical therapy (e.g., otic anti-infective or antiseptic with or without an otic corticosteroid). Supplement with systemic anti-infective therapy if patient has a medical condition that could impair host defenses (e.g., diabetes mellitus, HIV infection) or if infection has spread into pinna, skin of the neck or face, or into deeper tissues such as occurs with malignant otitis externa. Malignant otitis externa is an invasive, potentially life-threatening infection, especially in immunocompromised patients, and requires prompt diagnosis and treatment with systemic anti-infectives.

Ocular Inflammation

Fixed-combination ophthalmic preparations containing neomycin, polymyxin B, and dexamethasone or ...