Product image of Mitobrin (Tobramycin) supplied by GNH India

Mitobrin

Active Ingredient:
Tobramycin
Origin:
EU

Mitobrin (Tobramycin)

Tobramycin, the active ingredient in Mitobrin, is an aminoglycoside antibiotic presented as a topical ear preparation for auricular use. It is employed to treat bacterial infections of the external ear canal, such as otitis externa, in patients of all ages.
GNH India supplies Mitobrin as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Fidia Farmaceutici S.P.A

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Indications & Clinical Uses

  • Mitobrin, an aminoglycoside antibiotic, is used to manage bacterial infections of the external ear.
  • Otitis externa: reduces bacterial load and promotes resolution of infection.
  • External ear canal infection: eliminates pathogenic bacteria and alleviates symptoms.
  • Swimmer's ear: provides targeted antimicrobial activity to clear infection and prevent complications.

How It Works

  • Tobramycin binds to the 30S subunit of bacterial ribosomes, causing misreading of messenger RNA. This disrupts protein synthesis, leading to the production of faulty proteins and ultimately bacterial cell death. The drug’s bactericidal activity is concentration‑dependent and most effective against aerobic Gram‑negative organisms commonly found in ear infections.

Side Effects

Adverse reactions may occur with auricular use of Mitobrin. Patients should be monitored for any signs of local or systemic toxicity.

Common Side Effects

  • Ear discomfort or mild pain
  • Itching or burning sensation in the ear canal
  • Redness or mild inflammation of the external ear
  • Temporary hearing changes
  • Ear discharge
  • Mild dizziness

Serious or Rare Side Effects

  • Ototoxicity leading to permanent hearing loss or balance disturbance
  • Allergic reactions such as rash, swelling, or anaphylaxis
  • Nephrotoxicity from systemic absorption
  • Severe vestibular dysfunction

Precautions & Warnings

Mitobrin should be used with caution and under professional supervision.

  • Renal impairment: assess kidney function before use.
  • Pre‑existing hearing loss: monitor auditory function closely.
  • Pregnancy: avoid unless clearly indicated by a physician.
  • Concomitant ototoxic drugs: evaluate risk of additive toxicity.
  • Allergic history: confirm no known hypersensitivity to aminoglycosides.
  • Store at ambient temperature: keep in the original container, protect from moisture and light.

Avoid Interactions

Potential drug interactions may affect safety or efficacy of Mitobrin.

Major Interactions (Avoid)

  • Loop diuretics (e.g., furosemide): increased risk of ototoxicity.
  • Other aminoglycosides: additive nephro‑ and ototoxic effects.
  • Muscle relaxants (e.g., pancuronium): enhanced neuromuscular blockade.
  • Vancomycin: combined ototoxic potential.

Moderate Interactions (Monitor Closely)

  • Non‑steroidal anti‑inflammatory drugs (NSAIDs): possible renal stress.
  • ACE inhibitors: monitor renal function.
  • Other nephrotoxic agents (e.g., amphotericin B): watch for kidney injury.
  • Diuretics other than loops: adjust dosing if needed.
  • Radiographic contrast media: assess renal status before use.

Frequently Asked Questions

Mitobrin contains tobramycin and is indicated for the treatment of bacterial infections of the external ear, including otitis externa and other external ear canal infections. It works by delivering an antibacterial agent directly to the site of infection.

Tobramycin interferes with bacterial protein synthesis by binding to the 30S ribosomal subunit. This causes misreading of messenger RNA, leading to the production of defective proteins and bacterial cell death, especially against Gram‑negative organisms commonly found in ear infections.

The specific dose and frequency of Mitobrin are determined by the prescribing clinician based on the severity of the infection, patient age, and ear condition. Healthcare professionals tailor the regimen to achieve optimal therapeutic effect while minimizing risk.

Safety of Mitobrin in pregnancy or while breastfeeding has not been definitively established. It should only be used if the potential benefit justifies any potential risk to the fetus or infant, and this decision must be made by a qualified healthcare provider.

To place an order, submit an enquiry on the product page at gnhindia.com specifying the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and any necessary import documentation.

Mitobrin’s active ingredient, tobramycin, belongs to the aminoglycoside class, offering broad coverage against Gram‑negative bacteria. Compared with fluoroquinolone ear drops, tobramycin may have a higher risk of ototoxicity but is often preferred when resistant organisms are suspected or when a clinician seeks a well‑established aminoglycoside option.

Mitobrin should be stored at ambient temperature, preferably below 25 °C. Keep the product in its original packaging, protect it from moisture and direct sunlight, and ensure the container is tightly closed to maintain stability.

Mitobrin is applied topically to the affected ear. The prescribed number of drops is placed into the ear canal, usually after gently cleaning the outer ear. Administration is performed by the patient or caregiver as directed by a healthcare professional.

The most serious risks include ototoxicity, which can lead to permanent hearing loss or balance problems, and systemic toxicity such as nephrotoxicity if significant absorption occurs. Severe allergic reactions, though rare, also require immediate medical attention.

Mitobrin should be avoided in individuals with a known hypersensitivity to tobramycin or other aminoglycosides, in patients with severe renal impairment unless closely monitored, and in those with pre‑existing significant hearing loss unless the benefits outweigh the risks.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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