Product image of Levofloxacin (Levofloxacin Hemihydrate) supplied by GNH India

Levofloxacin

Active Ingredient:
Levofloxacin Hemihydrate
Origin:
EU

Levofloxacin (Levofloxacin Hemihydrate)

Levofloxacin, the active ingredient in Levofloxacin, is a fluoroquinolone presented as an intravenous solution for intravenous use. It treats a range of serious bacterial infections in adult patients, including pneumonia and complicated urinary or intra‑abdominal infections.

GNH India supplies Levofloxacin as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals worldwide.

Manufacturer / TM Owner

Fresenius Kabi Italia S.R.L.

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Indications & Clinical Uses

  • Levofloxacin is a broad‑spectrum antibacterial indicated for several serious infections.
  • Community‑acquired pneumonia: achieves bacterial eradication and clinical cure in adult patients.
  • Hospital‑acquired pneumonia: provides effective treatment against resistant Gram‑negative pathogens.
  • Complicated urinary tract infections: clears infection and prevents recurrence.
  • Complicated intra‑abdominal infections: resolves polymicrobial infections after surgical source control.
  • Skin and soft tissue infections: reduces bacterial load and promotes healing.

How It Works

  • Levofloxacin inhibits bacterial DNA gyrase and topoisomerase IV, enzymes essential for DNA replication and transcription. By binding to these enzymes, it prevents the supercoiling and separation of DNA strands, leading to inhibition of bacterial cell division and ultimately bacterial cell death. This bactericidal activity is concentration‑dependent and covers a wide range of Gram‑positive and Gram‑negative organisms.

Side Effects

Levofloxacin may cause a variety of adverse reactions, ranging from mild to severe.

Common Side Effects

  • Nausea or vomiting
  • Diarrhea
  • Headache
  • Dizziness
  • Rash or pruritus
  • Elevated liver enzymes

Serious or Rare Side Effects

  • Tendon rupture or inflammation
  • QT interval prolongation and cardiac arrhythmias
  • Clostridioides difficile‑associated colitis
  • Severe allergic reactions (anaphylaxis, Stevens‑Johnson syndrome)
  • Seizures or neurotoxicity
  • Peripheral neuropathy

Precautions & Warnings

  • Before initiating therapy, clinicians should evaluate patient‑specific risk factors and monitor for adverse events.
  • Assess renal function: adjust therapy in patients with impaired clearance.
  • Monitor for tendon pain: discontinue if signs of tendonitis or rupture appear.
  • Avoid in patients with known hypersensitivity to fluoroquinolones.
  • Use caution in individuals with prolonged QT interval or cardiac disease.
  • Review concomitant medications that may prolong QT or affect drug metabolism.
  • Store at ambient temperature: keep in original container, protect from moisture and light.

Avoid Interactions

Levofloxacin can interact with several drug classes, requiring careful management.

Major Interactions (Avoid)

  • Antiarrhythmics such as amiodarone: increased risk of QT prolongation.
  • Antacids or supplements containing aluminum, magnesium, calcium, or iron: reduce levofloxacin absorption.
  • Warfarin: may enhance anticoagulant effect and increase bleeding risk.

Moderate Interactions (Monitor Closely)

  • NSAIDs: may increase risk of central nervous system stimulation.
  • Oral contraceptives: potential reduction in contraceptive efficacy.
  • Theophylline: possible increase in theophylline serum concentrations.

Frequently Asked Questions

Levofloxacin is prescribed for serious bacterial infections such as community‑acquired and hospital‑acquired pneumonia, complicated urinary tract infections, complicated intra‑abdominal infections, and skin or soft‑tissue infections. It is administered intravenously and is chosen when a broad‑spectrum fluoroquinolone is appropriate.

Levofloxacin blocks bacterial DNA gyrase and topoisomerase IV, enzymes that unwind and separate DNA during replication. By inhibiting these enzymes, the drug prevents bacterial DNA synthesis, leading to cell death. This mechanism provides bactericidal activity against a wide range of Gram‑positive and Gram‑negative organisms.

The specific dose and duration of Levofloxacin therapy are determined by the prescribing clinician based on the infection type, severity, patient renal function, and local antimicrobial guidelines. Healthcare professionals should follow the recommended dosing regimen on the product label or institutional protocol.

Levofloxacin is classified as pregnancy category unknown, and its safety in pregnant or nursing women has not been established. Clinicians should weigh potential benefits against risks and consider alternative agents when treating pregnant or lactating patients.

To request Levofloxacin, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India supplies hospitals, pharmacies, and procurement teams worldwide. After submission, the sales team will verify trade or institutional credentials and respond with pricing, availability, shipping details (including cold‑chain if needed), and import documentation.

Levofloxacin is a third‑generation fluoroquinolone with enhanced activity against Gram‑negative pathogens and a once‑daily dosing option for many indications. Compared with older agents like ciprofloxacin, it often provides broader coverage of respiratory pathogens and may achieve higher tissue concentrations, but safety considerations such as tendon toxicity remain similar across the class.

Levofloxacin intravenous solution should be stored at ambient temperature, below 25 °C, in its original packaging. Protect the product from excessive moisture, direct sunlight, and extreme temperature fluctuations to maintain stability and potency.

Levofloxacin is supplied as an intravenous solution and is administered by slow infusion into a vein, typically over 30‑60 minutes. The infusion rate and dilution volume are determined by the prescribing clinician and institutional protocols to ensure safe delivery.

Serious risks include tendon rupture or inflammation, QT interval prolongation leading to cardiac arrhythmias, severe hypersensitivity reactions such as anaphylaxis or Stevens‑Johnson syndrome, Clostridioides difficile‑associated colitis, seizures, and peripheral neuropathy. Patients should be monitored closely for any of these events, especially if they have pre‑existing risk factors.

Levofloxacin is contraindicated in individuals with a known hypersensitivity to levofloxacin, other fluoroquinolones, or any component of the formulation. It should also be avoided in patients with a history of tendon disorders related to fluoroquinolone use, uncontrolled arrhythmias, or those taking medications that significantly prolong the QT interval.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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