Product image of Metronidazole Norma (Metronidazole) supplied by GNH India

Metronidazole Norma

Active Ingredient:
Metronidazole
Origin:
EU

Metronidazole Norma (Metronidazole)

Metronidazole, the active ingredient in Metronidazole Norma, is a nitroimidazole antibiotic presented as an intravenous solution for intravenous use. It treats anaerobic bacterial infections and certain protozoal diseases in both adult and pediatric patients as prescribed by a healthcare professional.

GNH India supplies Metronidazole Norma as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide. The company adheres to stringent quality standards and provides reliable logistics for global distribution. Customers benefit from consistent product availability and regulatory compliance across multiple markets.

Manufacturer / TM Owner

Norma Hellas S.A.

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Indications & Clinical Uses

Metronidazole is used to treat infections caused by anaerobic bacteria and certain protozoa.

  • Anaerobic bacterial infections: effective against mixed anaerobic flora, reducing infection severity.
  • Intra-abdominal infections: controls polymicrobial infections within the abdominal cavity.
  • Pelvic inflammatory disease: eradicates causative anaerobes, improving pelvic health.
  • Bacterial vaginosis: restores normal vaginal flora by eliminating overgrowth.
  • Clostridioides difficile infection (adjunct): used alongside standard therapy to reduce recurrence risk.
  • Amoebiasis: eliminates Entamoeba histolytica trophozoites in intestinal disease.

How It Works

  • Metronidazole enters susceptible anaerobic microorganisms and is reduced by intracellular electron transport proteins to reactive nitro radicals. These radicals interact with DNA, causing strand breakage and loss of helical structure, and also inhibit nucleic acid synthesis. The resulting damage leads to bacterial and protozoal cell death while having minimal effect on aerobic cells. The selective activation in low‑oxygen environments enhances its therapeutic index.

Side Effects

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

Common Side Effects

  • Nausea: mild stomach upset often reported.
  • Metallic taste: transient metallic sensation in the mouth.
  • Headache: mild to moderate headache episodes.
  • Diarrhea: loose stools occurring during therapy.

Serious or Rare Side Effects

  • Seizures: rare convulsions requiring immediate medical attention.
  • Peripheral neuropathy: tingling or numbness in extremities, potentially persistent.
  • Severe allergic reactions: rash, swelling, or anaphylaxis.

Precautions & Warnings

Before initiating Metronidazole therapy, clinicians should consider several precautionary measures to ensure safe use.

  • Assess renal function: adjust dosage in patients with significant impairment.
  • Monitor hepatic function: use cautiously in liver disease due to metabolism.
  • Avoid alcohol: risk of disulfiram‑like reaction causing flushing and tachycardia.
  • Use with caution in pregnancy: limited safety data, weigh benefits against risks.
  • Store at 2-8°C: keep refrigerated, protect from light, do not freeze.

Avoid Interactions

Metronidazole can interact with other medicines, affecting its efficacy or safety.

Major Interactions (Avoid)

  • Alcohol: may cause severe disulfiram‑like reaction.
  • Warfarin: potentiates anticoagulant effect, increasing bleeding risk.
  • Lithium: can raise lithium levels, leading to toxicity.

Moderate Interactions (Monitor Closely)

  • Phenytoin: may lower metronidazole concentrations.
  • Cimetidine: can increase metronidazole plasma levels.
  • Theophylline: possible elevation of theophylline concentrations.

Frequently Asked Questions

Metronidazole Norma is an intravenous formulation of metronidazole used to treat a range of anaerobic bacterial infections and certain protozoal diseases, such as intra‑abdominal infections, pelvic inflammatory disease, bacterial vaginosis, Clostridioides difficile infection (as an adjunct) and amoebiasis. It is prescribed by qualified healthcare professionals for patients who require systemic antimicrobial therapy.

Metronidazole is taken up by anaerobic microorganisms and reduced by their internal electron‑transport proteins to form reactive nitro radicals. These radicals bind to DNA, causing strand breakage and loss of helical structure, and they also inhibit nucleic acid synthesis. The resulting damage leads to bacterial and protozoal cell death while sparing most aerobic cells.

The dosage of Metronidazole Norma is determined by the prescribing clinician based on the specific infection, its severity, the patient’s age, weight, renal and hepatic function, and any concomitant therapies. The product label provides dosing ranges, but the exact regimen must be individualized by a qualified healthcare professional.

Safety data for metronidazole in pregnancy are limited, and the drug is generally used only when the potential benefit outweighs any possible risk to the fetus. It is excreted in breast milk, so caution is advised for nursing mothers. Clinicians should evaluate the risk‑benefit profile before prescribing to pregnant or lactating patients.

To place an order, submit an enquiry on the Metronidazole Norma 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 (including any cold‑chain requirements) and the necessary import documentation.

Metronidazole is highly active against obligate anaerobes and many protozoa, offering rapid bactericidal activity after reduction within the organism. Compared with broad‑spectrum beta‑lactams, it provides a narrower spectrum focused on anaerobes, often with fewer drug‑interaction concerns. However, resistance can develop, and in mixed infections clinicians may combine it with other agents for optimal coverage.

Metronidazole Norma should be stored at 2‑8 °C (refrigerated). Keep the vial in its original packaging, protect it from light, and avoid freezing or shaking the solution. Maintaining the cold‑chain ensures product stability and potency throughout distribution and storage.

Metronidazole Norma is administered intravenously by a qualified healthcare professional. The solution is typically diluted in an appropriate compatible IV fluid and infused over a prescribed period, often ranging from 30 minutes to several hours, depending on the clinical indication and patient tolerance.

Serious adverse events include seizures, peripheral neuropathy that may become permanent, severe allergic reactions such as anaphylaxis, and rare life‑threatening skin conditions like Stevens‑Johnson syndrome. Patients should be monitored for neurological symptoms, rash, or signs of hypersensitivity, and therapy should be discontinued immediately if serious reactions occur.

Metronidazole is contraindicated in patients with a known hypersensitivity to metronidazole or other nitroimidazole derivatives. Caution is also advised for individuals with severe hepatic impairment, those who consume alcohol regularly (due to the risk of a disulfiram‑like reaction), and patients with a history of seizures or peripheral neuropathy unless benefits clearly outweigh risks.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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