Oftaquix (Levofloxacin Hemihydrate)

Levofloxacin is a broad‑spectrum antibacterial agent used in several infection pathways.

• Community‑acquired bacterial pneumonia: helps eradicate the causative organisms and improve respiratory symptoms.
• Acute bacterial sinusitis: reduces sinus inflammation and clears the infection.
• Uncomplicated urinary tract infection: eliminates the uropathogens responsible for urinary symptoms.
• Skin and soft‑tissue infections: controls bacterial proliferation in cutaneous lesions.
• Chronic bronchitis exacerbations: assists in resolving bacterial flare‑ups in chronic lung disease.

• Levofloxacin inhibits bacterial DNA gyrase and topoisomerase IV, enzymes essential for DNA replication, transcription and repair. By binding to these enzymes, it prevents the unwinding of bacterial DNA, leading to inhibition of bacterial cell division and ultimately bacterial cell death.

Levofloxacin may cause a range of adverse reactions, most of which are mild to moderate and resolve after therapy ends.

Common Side Effects

• Nausea: mild stomach upset that may occur during treatment.
• Diarrhea: loose stools that are usually self‑limiting.
• Headache: transient head discomfort.
• Dizziness: occasional light‑headed sensation.
• Photosensitivity: increased skin sensitivity to sunlight.
• Abdominal pain: cramping or discomfort in the stomach area.

Serious or Rare Side Effects

• Tendon rupture: sudden tendon pain or rupture, especially in the Achilles.
• QT interval prolongation: heart rhythm changes detectable on ECG.
• Severe allergic reactions: rash, itching, swelling, or difficulty breathing.
• Peripheral neuropathy: numbness or tingling in extremities.
• Clostridioides difficile infection: severe diarrhea due to bacterial overgrowth.
• Liver enzyme elevation: abnormal liver function test results.

Levofloxacin should be used with caution in specific clinical situations and patient populations.

• Renal impairment: dose adjustment may be required based on kidney function.
• History of tendon disorders: avoid use if previous tendon inflammation or rupture occurred.
• Cardiac arrhythmias: monitor patients with known QT prolongation risk.
• Seizure disorders: use cautiously in patients with a history of seizures.
• Pregnancy and lactation: only prescribe if the potential benefit outweighs the risk.
• Store at below 25°C: keep in the original container, protect from moisture and direct sunlight.

Levofloxacin can interact with several medicines, altering its effectiveness or increasing toxicity risk.

Major Interactions (Avoid)

• Antacids containing aluminum or magnesium: reduce levofloxacin absorption.
• Warfarin: may increase anticoagulant effect and bleeding risk.
• NSAIDs (non‑steroidal anti‑inflammatory drugs): heightened risk of central nervous system stimulation.

Moderate Interactions (Monitor Closely)

• Theophylline: may raise serum theophylline concentrations.
• Cyclosporine: increased risk of nephrotoxicity.
• Diabetic agents: potential alteration of blood glucose control.