Colistin Sulfate, Neomycin Sulfate, Thonzonium Bromide And Hydrocortisone Acetate
Generic Name: colistin sulfate, neomycin sulfate, thonzonium bromide and hydrocortisone acetate
Brand Names:
Cortisporin Tc
DESCRIPTION Cortisporin ® TC Otic with Neomycin and Hydrocortisone (colistin sulfate—neomycin sulfate—thonzonium bromide—hydrocortisone acetate otic suspension) is a sterile antibacterial and anti-inflammatory aqueous suspension containing in each mL: Colistin base activity, 3 mg (as the sulfate); Neomycin base activity, 3.3 mg (as the sulfate); Hydrocortisone acetate, 10 mg (1%); Thonzonium bromide, 0.5 mg (0.05%); Polysorbate 80, acetic acid, and sodium acetate in a buffered aqueous vehicle.
Overview
DESCRIPTION Cortisporin ® TC Otic with Neomycin and Hydrocortisone (colistin sulfate—neomycin sulfate—thonzonium bromide—hydrocortisone acetate otic suspension) is a sterile antibacterial and anti-inflammatory aqueous suspension containing in each mL: Colistin base activity, 3 mg (as the sulfate); Neomycin base activity, 3.3 mg (as the sulfate); Hydrocortisone acetate, 10 mg (1%); Thonzonium bromide, 0.5 mg (0.05%); Polysorbate 80, acetic acid, and sodium acetate in a buffered aqueous vehicle.
Uses
INDICATIONS AND USAGE Cortisporin ® TC Otic is indicated for the treatment of superficial bacterial infections of the external auditory canal, caused by organisms susceptible to the action of the antibiotics; and for the treatment of infections of mastoidectomy and fenestration cavities, caused by organisms susceptible to the antibiotics.
Dosage
DOSAGE AND ADMINISTRATION Therapy with this product should be limited to 10 days (See WARNINGS ). The external auditory canal should be thoroughly cleansed and dried with a sterile cotton applicator. When using the calibrated dropper: For adults, 5 drops of the suspension should be instilled into the affected ear 3 or 4 times daily. For pediatric patients, 4 drops are suggested because of the smaller capacity of the ear canal. The patient should lie with the affected ear upward and then the drops should be instilled. This position should be maintained for 5 minutes to facilitate penetration of the drops into the ear canal. Repeat, if necessary, for the opposite ear. If preferred, a cotton wick may be inserted into the canal and then the cotton may be saturated with the suspension.
Side Effects
ADVERSE REACTIONS Neomycin occasionally causes skin sensitization. Ototoxicity (see WARNINGS section) and nephrotoxicity have also been reported. Adverse reactions have occurred with topical use of antibiotic combinations. Exact incidence figures are not available since no denominator of treated patients is available. The reaction occurring most often is allergic sensitization. In one clinical study, using a 20% neomycin patch, neomycin-induced allergic skin reactions occurred in two of 2,175 (0.09%) individuals in the general population. In another study the incidence was found to be approximately 1%.
Warnings
WARNINGS Neomycin can induce permanent sensorineural hearing loss due to cochlear damage, mainly destruction of hair cells in the organ of Corti. The risk is greater with prolonged use. Therapy should be limited to 10 consecutive days (See PRECAUTIONS-General ). Patients being treated with eardrops containing neomycin should be under close clinical observation. Cortisporin ® TC Otic should be used cautiously in any patient 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 promptly if sensitivity or irritation occurs. CONTRAINDICATIONS 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 (e.g., herpes simplex virus or varicella zoster virus).
Pregnancy
Pregnancy Teratogenic Effects Pregnancy Category C There are no adequate and well controlled studies of Cortisporin ® TC Otic in pregnant women. It is not known whether Cortisporin ® TC Otic can cause fetal harm when administered to a pregnant woman. Colistimethate sodium, the methanesulfonate salt of colistin, was not teratogenic in rats or rabbits given intramuscular doses up to 20 mg/kg (equivalent to 9.3 mg/kg of colisitin base, approximately 30 times (rats) or 55 times (rabbits) the clinical daily dose based on body surface area and assuming 100% absorption from the ear).
Storage
Store at 20° to 25°C (68° to 77°F). Rx only.
Frequently Asked Questions
What is Colistin Sulfate, Neomycin Sulfate, Thonzonium Bromide And Hydrocortisone Acetate used for?▼
INDICATIONS AND USAGE Cortisporin ® TC Otic is indicated for the treatment of superficial bacterial infections of the external auditory canal, caused by organisms susceptible to the action of the antibiotics; and for the treatment of infections of mastoidectomy and fenestration cavities, caused by organisms susceptible to the antibiotics.
What are the side effects of Colistin Sulfate, Neomycin Sulfate, Thonzonium Bromide And Hydrocortisone Acetate?▼
ADVERSE REACTIONS Neomycin occasionally causes skin sensitization. Ototoxicity (see WARNINGS section) and nephrotoxicity have also been reported. Adverse reactions have occurred with topical use of antibiotic combinations. Exact incidence figures are not available since no denominator of treated patients is available. The reaction occurring most often is allergic sensitization. In one clinical study, using a 20% neomycin patch, neomycin-induced allergic skin reactions occurred in two of 2,175 (0.09%) individuals in the general population. In another study the incidence was found to be approximately 1%.
Can I take Colistin Sulfate, Neomycin Sulfate, Thonzonium Bromide And Hydrocortisone Acetate during pregnancy?▼
Pregnancy Teratogenic Effects Pregnancy Category C There are no adequate and well controlled studies of Cortisporin ® TC Otic in pregnant women. It is not known whether Cortisporin ® TC Otic can cause fetal harm when administered to a pregnant woman. Colistimethate sodium, the methanesulfonate salt of colistin, was not teratogenic in rats or rabbits given intramuscular doses up to 20 mg/kg (equivalent to 9.3 mg/kg of colisitin base, approximately 30 times (rats) or 55 times (rabbits) the clinical daily dose based on body surface area and assuming 100% absorption from the ear).
What are the important warnings for Colistin Sulfate, Neomycin Sulfate, Thonzonium Bromide And Hydrocortisone Acetate?▼
WARNINGS Neomycin can induce permanent sensorineural hearing loss due to cochlear damage, mainly destruction of hair cells in the organ of Corti. The risk is greater with prolonged use. Therapy should be limited to 10 consecutive days (See PRECAUTIONS-General ). Patients being treated with eardrops containing neomycin should be under close clinical observation. Cortisporin ® TC Otic should be used cautiously in any patient 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 promptly if sensitivity or irritation occurs. CONTRAINDICATIONS 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 (e.g., herpes simplex virus or varicella zoster virus).
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Medical Disclaimer
This drug information is for educational purposes only and should not replace professional medical advice. Drug information is sourced from the FDA National Drug Code Directory and Structured Product Labeling. Always consult with a healthcare provider before starting, stopping, or changing any medication.