Metronidazole Biosedra (Metronidazole)

Metronidazole Biosedra is a nitroimidazole antibiotic that targets anaerobic bacteria and protozoa.

• Anaerobic bacterial infections: eradicates susceptible anaerobes and resolves infection.
• Bacterial vaginosis: restores normal vaginal flora by eliminating pathogenic anaerobes.
• Trichomoniasis: eliminates Trichomonas vaginalis, relieving symptoms.
• Amebic liver abscess: destroys Entamoeba histolytica trophozoites in hepatic tissue.
• Clostridioides difficile infection: reduces toxin‑producing C. difficile and aids clinical recovery.

• Metronidazole is taken up by anaerobic microorganisms and reduced by intracellular electron transport proteins to reactive nitro radicals. These radicals interact with DNA, causing strand breaks and loss of helical structure, and they also inhibit nucleic acid synthesis, ultimately leading to microbial cell death.

Metronidazole may cause a range of adverse reactions, from mild to severe.

Common Side Effects

• Nausea: mild to moderate upset stomach.
• Metallic taste: transient metallic sensation in the mouth.
• Headache: mild to moderate headache.
• Diarrhea: loose stools, often self‑limited.
• Abdominal pain: cramping or discomfort.
• Dizziness: occasional light‑headedness.

Serious or Rare Side Effects

• Seizures: rare neurologic events.
• Peripheral neuropathy: tingling or numbness in extremities.
• Severe allergic reactions: anaphylaxis, rash, or swelling.
• Stevens‑Johnson syndrome: severe skin and mucous membrane reaction.
• Liver toxicity: elevated transaminases or hepatitis.
• Neutropenia: marked reduction in white blood cells.

Before using Metronidazole Biosedra, consider the following safety measures.

• Renal impairment: adjust therapy and monitor renal function.
• Hepatic disease: use with caution and monitor liver enzymes.
• Alcohol consumption: avoid to prevent disulfiram‑like reaction.
• Pregnancy: prescribe only if benefit outweighs potential risk.
• Concurrent warfarin therapy: monitor INR closely for increased anticoagulation.
• Store at ambient temperature: keep in original container, protect from light and moisture.

Metronidazole can interact with several medicines; some require avoidance while others need monitoring.

Major Interactions (Avoid)

• Alcohol: may cause severe disulfiram‑like reaction.
• Warfarin: increased anticoagulant effect, risk of bleeding.
• Lithium: heightened lithium toxicity.

Moderate Interactions (Monitor Closely)

• Cimetidine: may raise metronidazole plasma levels.
• Phenobarbital: may reduce metronidazole efficacy.
• Phenytoin: may lower metronidazole concentrations.