Levofloxacine Fresenius Kabi (Levofloxacin Hemihydrate)

Levofloxacin is indicated for several bacterial infections affecting the respiratory, urinary, abdominal and skin systems.

• Community‑acquired pneumonia: rapid bacterial clearance leading to clinical improvement.
• Hospital‑acquired pneumonia: effective against resistant pathogens to support recovery.
• Complicated urinary tract infections: eradicates causative organisms and resolves infection.
• Complicated intra‑abdominal infections: aids in controlling polymicrobial infection after surgery.
• Skin and soft tissue infections: reduces bacterial load and promotes healing.
• Acute bacterial sinusitis: alleviates symptoms by eliminating the infecting bacteria.

• Levofloxacin exerts its antibacterial activity by binding to bacterial DNA gyrase (topoisomerase II) and topoisomerase IV. This inhibition prevents the supercoiling and resealing of DNA during replication and transcription, leading to DNA damage and bacterial cell death. The drug’s high affinity for these enzymes in Gram‑negative and Gram‑positive organisms underlies its broad‑spectrum efficacy.

Levofloxacin may be associated with a range of adverse reactions, varying from mild to severe.

Common Side Effects

• Nausea: mild gastrointestinal upset.
• Diarrhea: loose stools, often self‑limiting.
• Headache: transient cranial discomfort.
• Rash: mild skin erythema or pruritus.

Serious or Rare Side Effects

• Tendon rupture: sudden tendon pain or rupture, especially in the Achilles.
• QT prolongation: cardiac rhythm disturbances that may lead to arrhythmia.
• Severe hypersensitivity: anaphylaxis or Stevens‑Johnson syndrome requiring urgent care.

When prescribing Levofloxacin, clinicians should consider several safety precautions to minimize risk.

• Renal impairment: adjust dose or monitor renal function closely.
• History of tendon disorders: avoid use or discontinue at first sign of tendon pain.
• Concomitant QT‑prolonging drugs: monitor cardiac rhythm and electrolytes.
• Pregnancy and lactation: use only if benefits outweigh potential risks, as safety data are limited.
• Allergic reactions: discontinue if signs of hypersensitivity develop.
• Store at 2‑8 °C: keep refrigerated, protect from light, do not freeze or shake.

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

Major Interactions (Avoid)

• Antacids containing aluminum or magnesium: reduce absorption; separate administration by at least 2 hours.
• Warfarin: may increase INR and bleeding risk; monitor coagulation parameters.
• Theophylline: increased plasma levels leading to toxicity; consider dose reduction.

Moderate Interactions (Monitor Closely)

• NSAIDs: may increase risk of central nervous system stimulation.
• Diabetic agents (e.g., insulin, sulfonylureas): potential for hypoglycemia; monitor blood glucose.
• Corticosteroids: heightened risk of tendon rupture; advise caution.