This product is contraindicated in those individuals who have shown hypersensitivity to any of its components.This product should not be used if the external auditory canal disorder is suspected or known to be due to cutaneous viral infection (for example, herpes simplex virus or varicella zoster virus).
Neomycin can induce permanent sensorineural hearing loss due to cochlear damage, mainly destruction of hair cells in the organ of Corti. The risk of ototoxicity is greater with prolonged use; therefore, duration of therapy should be limited to 10 consecutive days (see PRECAUTIONS: General).
Patients being treated with eardrops containing neomycin should be under close clinical observation.
Due to its acidity which may cause burning and stinging, CORTISPORIN Otic Solution should not be used in any patients with a perforated tympanic membrane.
Neomycin sulfate may cause cutaneous sensitization.
A precise incidence of hypersensitivity reactions (primarily skin rash) due to topical neomycin is not known.
Discontinue this product promptly if sensitization or irritation occurs.
When using neomycin-containing products to control secondary infection in the chronic dermatoses, such as chronic otitis externa or stasis dermatitis, it should be borne in mind that the skin in these conditions is more liable than is normal skin to become sensitized to many substances, including neomycin.
The manifestation of sensitization to neomycin is usually a low-grade reddening with swelling, dry scaling, and itching; it may be manifest simply as a failure to heal.
Periodic examination for such signs is advisable, and the patient should be told to discontinue the product if they are observed.
These symptoms regress quickly on withdrawing the medication.
Neomycin-containing applications should be avoided for the patient thereafter.
Contains potassium metabisulfite, a sulfite that may cause allergic-type reactions including anaphylactic symptoms and life-threatening or less severe asthmatic episodes in certain susceptible people.
The overall prevalence of sulfite sensitivity in the general population is unknown and probably low.Sulfite sensitivity is seen more frequently in asthmatic than in nonasthmatic people.