Neomycin/polymyxin B/hydrocortisone

Combination antibiotic and steroid medication

Neomycin/polymyxin B/hydrocortisone is a combination medication used primarily in the treatment of ear infections, specifically otitis externa, also known as "swimmer's ear." This medication combines two antibiotics and a corticosteroid to provide both antimicrobial and anti-inflammatory effects.

Components

Neomycin

Neomycin is an aminoglycoside antibiotic that works by inhibiting bacterial protein synthesis. It is effective against a wide range of Gram-positive and Gram-negative bacteria, making it useful in treating infections caused by susceptible organisms.

Polymyxin B

Polymyxin B is an antibiotic that targets the cell membrane of bacteria, particularly effective against Gram-negative organisms. It disrupts the bacterial cell membrane, leading to cell death. Polymyxin B is often used in combination with other antibiotics to enhance its effectiveness.

Hydrocortisone

Hydrocortisone is a corticosteroid that reduces inflammation by suppressing the immune response. It helps alleviate symptoms such as swelling, redness, and itching associated with ear infections.

Mechanism of Action

The combination of neomycin and polymyxin B provides a broad spectrum of antibacterial activity, targeting both Gram-positive and Gram-negative bacteria. Hydrocortisone complements this by reducing inflammation and discomfort in the affected area. Together, these components work synergistically to treat infections and relieve symptoms.

Uses

Neomycin/polymyxin B/hydrocortisone is primarily used to treat otitis externa, an infection of the outer ear canal. It is also used in some cases to treat otitis media with a ruptured tympanic membrane, where topical treatment is appropriate.

Administration

The medication is typically administered as ear drops. The patient should tilt their head to the side, and the prescribed number of drops should be placed into the affected ear. It is important to keep the ear tilted for a few minutes to allow the medication to penetrate the ear canal.

Ear drops bottle

Side Effects

Common side effects may include mild irritation or discomfort in the ear. Rarely, allergic reactions can occur, characterized by symptoms such as rash, itching, or swelling. If severe side effects or signs of an allergic reaction occur, medical attention should be sought immediately.

Precautions

Patients with a known allergy to any of the components should not use this medication. It is also important to avoid use in patients with a perforated eardrum unless specifically directed by a healthcare provider.

Related Pages

• Antibiotic
• Corticosteroid
• Otitis externa
• Otitis media