Metrosa

Metronidazole, the active ingredient in Metrosa, is a nitroimidazole antibiotic presented as a topical formulation for skin use. It is employed to manage inflammatory skin conditions caused by anaerobic bacteria and protozoa, most notably rosacea, in adult patients.

GNH USA supplies Metrosa as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Metronidazole is a nitroimidazole antibiotic used to treat infections caused by anaerobic bacteria and certain protozoa. - Rosacea: reduces inflammatory lesions and erythema on the face. - Bacterial vaginosis: eradicates anaerobic bacterial overgrowth in the vaginal flora. - Trichomoniasis: eliminates the protozoan parasite Trichomonas vaginalis. - Anaerobic skin infections: treats localized infections caused by susceptible anaerobes.

Metronidazole may cause a range of adverse reactions when applied to the skin.

Common Side Effects: - Skin irritation: mild redness or burning at the application site. - Dryness: localized skin dryness or flaking. - Itching: pruritus around the treated area. - Discoloration: temporary hyperpigmentation or hypopigmentation. - Stinging sensation: transient sharp sensation upon application. - Contact dermatitis: mild allergic skin reaction.

Serious or Rare Side Effects: - Severe allergic reaction: swelling, hives, or difficulty breathing. - Stevens‑Johnson syndrome: rare but serious mucocutaneous eruption. - Toxic epidermal necrolysis: extensive skin detachment. - Systemic absorption leading to neurotoxicity: dizziness or seizures (very rare with topical use).

When using Metrosa, consider the following safety measures. - Pregnancy: consult a healthcare professional before use. - Breastfeeding: discuss potential risks with a physician. - Known hypersensitivity: avoid if allergic to metronidazole or other nitroimidazoles. - Concurrent alcohol use: limit intake as irritation may increase. - Sun exposure: protect treated skin from excessive UV radiation. - Store at ambient temperature: keep in the original packaging, protect from moisture and light.

Metronidazole can interact with several systemic agents; topical exposure generally has limited systemic interaction, but caution is advised.

Major Interactions (Avoid): - Alcohol: may cause severe skin irritation and a disulfiram‑like reaction. - Warfarin: potential increase in anticoagulant effect. - Lithium: risk of heightened lithium toxicity.

Moderate Interactions (Monitor Closely): - Cimetidine: may increase metronidazole plasma levels. - Oral contraceptives: possible reduction in efficacy. - Phenytoin: may alter metabolism of both drugs.