Mibetin (Betamethasone Dipropionate, Gentamicin Sulfate)

Mibetin combines a corticosteroid and an aminoglycoside to address inflammatory and bacterial skin conditions. It is indicated for:

• Eczema: reduces inflammation and limits secondary bacterial infection, improving itching and redness.
• Contact dermatitis: alleviates swelling and erythema while controlling microbial colonisation.
• Infected dermatitis: provides anti‑inflammatory action and bactericidal effect to clear infection and promote healing.

• Betamethasone dipropionate binds to intracellular glucocorticoid receptors, altering gene transcription to suppress pro‑inflammatory cytokines and mediators. Gentamicin sulfate attaches to the bacterial 30S ribosomal subunit, disrupting protein synthesis and leading to bacterial cell death. The combined actions result in reduced skin inflammation and eradication of susceptible bacteria.

Mibetin may cause local and systemic reactions typical of topical corticosteroids and aminoglycosides.

Common Side Effects

• Burning or stinging at the application site.
• Mild skin irritation or itching.
• Dryness or peeling of the treated area.
• Temporary discoloration of the skin.
• Folliculitis.

Serious or Rare Side Effects

• Contact dermatitis or allergic reaction with swelling and rash.
• Secondary skin infection due to over‑growth of resistant organisms.
• Systemic absorption leading to adrenal suppression (rare with extensive use).
• Ototoxicity or nephrotoxicity (extremely rare with topical use).
• Severe hypersensitivity reactions such as Stevens‑Johnson syndrome.

Before using Mibetin, consider the following safety measures:

• Pregnancy: consult a healthcare provider; safety data are limited.
• Breastfeeding: discuss potential risks with a clinician.
• Children: use only under medical supervision; monitor for growth‑related effects.
• Long‑term use: avoid prolonged application on large body areas to reduce systemic exposure.
• Occlusive dressings: do not cover treated skin unless directed by a physician.
• Store at room temperature: keep in the original container, protect from moisture and direct sunlight.

Mibetin can interact with other medications applied to the skin or systemic agents.

Major Interactions (Avoid)

• Systemic corticosteroids: may increase risk of adrenal suppression.
• Nephrotoxic or ototoxic drugs (e.g., aminoglycoside antibiotics): additive toxicity is possible.

Moderate Interactions (Monitor Closely)

• Topical immunosuppressants (e.g., tacrolimus): may enhance local immunosuppression.
• Antifungal agents: potential for reduced efficacy of the steroid component.
• Skin barrier‑altering products (e.g., keratolytics): may increase systemic absorption.