Metrosa

Metronidazole, the active ingredient in Metrosa, is a nitroimidazole antibiotic presented as a topical formulation for cutaneous use. It treats rosacea, acne vulgaris and certain skin infections in patients requiring prescription therapy.

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

Metronidazole is a nitroimidazole antibiotic that targets anaerobic bacteria and protozoa in skin conditions.

- Rosacea: reduces inflammatory lesions and erythema associated with the condition. - Acne vulgaris: decreases bacterial colonization and inflammation of acne lesions. - Skin infections: treats susceptible bacterial skin infections, including those caused by anaerobic organisms.

Metronidazole may cause a range of cutaneous and systemic adverse reactions.

Common Side Effects: - Skin irritation: mild redness or burning at the application site. - Pruritus: itching of the treated area. - Dryness: localized dryness or peeling. - Taste alteration: metallic taste when absorbed. - Nausea: occasional mild nausea. - Headache: transient headache.

Serious or Rare Side Effects: - Severe allergic reaction: rash, swelling, or anaphylaxis requiring immediate medical attention. - Peripheral neuropathy: numbness or tingling in extremities. - Seizures: rare central nervous system events. - Hepatotoxicity: signs of liver dysfunction such as jaundice. - Blood dyscrasias: unexplained bruising or low blood counts.

When prescribing or dispensing Metrosa, consider the following precautions to ensure safe use.

- Pregnancy: assess risk‑benefit, as safety data are limited. - Breastfeeding: evaluate potential exposure to infant. - Liver disease: use with caution in patients with hepatic impairment. - Alcohol consumption: avoid alcohol during therapy due to disulfiram‑like reaction. - Drug hypersensitivity: discontinue if signs of severe allergy appear. - Store at room temperature: keep in original container, protect from moisture and light.

Metronidazole can interact with other medicines, altering efficacy or safety.

Major Interactions (Avoid): - Alcohol: may cause severe flushing, tachycardia, and nausea. - Warfarin: increased anticoagulant effect, risk of bleeding. - Lithium: may raise lithium levels, leading to toxicity.

Moderate Interactions (Monitor Closely): - Cimetidine: may increase metronidazole plasma concentrations. - Phenobarbital: may reduce metronidazole levels, decreasing effectiveness. - Oral contraceptives: possible reduction in contraceptive efficacy.