Oxatrex (Ofloxacin)

Oxatrex is a fluoroquinolone antibiotic that targets bacterial DNA replication pathways. It is commonly used for:

• Urinary tract infections: helps eradicate *E. coli* and other common uropathogens.
• Respiratory tract infections: effective against *Streptococcus pneumoniae*, *Haemophilus influenzae* and atypical organisms.
• Skin and soft‑tissue infections: aids in clearing *Staphylococcus aureus* and *Streptococcal* species.
• Gonorrhoea: used as a single‑dose therapy for uncomplicated *Neisseria gonorrhoeae* infection.

• Ofloxacin inhibits bacterial DNA gyrase and topoisomerase IV, enzymes essential for supercoiling and replication of bacterial DNA. By binding to these enzymes, the drug prevents DNA strand separation, halting bacterial cell division and leading to bacterial cell death. This bactericidal action is selective for prokaryotic cells, providing targeted antimicrobial activity.

Ofloxacin may cause a range of adverse reactions, most of which are mild and reversible.

Common Side Effects

• Nausea: mild stomach upset that usually resolves without treatment.
• Diarrhea: loose stools that may improve with hydration.
• Headache: transient cranial discomfort.
• Dizziness: occasional light‑headedness, especially on standing.
• Photosensitivity: increased skin sensitivity to sunlight.
• Abdominal pain: cramping or discomfort in the stomach area.

Serious or Rare Side Effects

• Tendon rupture: sudden pain or swelling in tendons, most often the Achilles.
• QT interval prolongation: irregular heart rhythm detectable on ECG.
• Severe allergic reaction: rash, itching, swelling, or difficulty breathing.
• Central nervous system effects: seizures or psychosis in susceptible individuals.
• Hepatotoxicity: elevated liver enzymes or jaundice.
• Peripheral neuropathy: tingling or numbness in extremities.

When prescribing Oxatrex, clinicians should consider patient‑specific factors and monitor for known risks.

• Tendon health: avoid use in patients with a history of tendon disorders or who are on corticosteroids.
• Cardiac monitoring: caution in patients with known QT prolongation or electrolyte imbalances.
• Renal function: adjust use in severe renal impairment.
• Pregnancy and lactation: contraindicated unless the benefit outweighs the risk.
• Age considerations: use with caution in children and the elderly.
• Store at below 25°C: keep in the original packaging, protect from moisture and direct sunlight.

Oxatrex can interact with several drug classes, altering its efficacy or safety profile.

Major Interactions (Avoid)

• Antacids containing aluminium or magnesium: reduce ofloxacin absorption.
• Non‑steroidal anti‑inflammatory drugs (NSAIDs): increase risk of CNS stimulation.
• Warfarin: may enhance anticoagulant effect, requiring INR monitoring.
• Theophylline: heightened risk of seizures.
• Cyclosporine: increased risk of nephrotoxicity.

Moderate Interactions (Monitor Closely)

• Oral contraceptives: reduced hormonal efficacy, advise backup contraception.
• Diabetic agents: potential alteration of blood glucose control.
• Corticosteroids: additive risk of tendon injury.
• Antidiabetic sulfonylureas: possible hypoglycaemia.
• Rifampicin: may lower ofloxacin plasma levels.