Kinofta (Levofloxacin Hemihydrate)

Kinofta, containing levofloxacin, is employed in the management of bacterial ocular infections.

• Bacterial conjunctivitis: reduces bacterial load and accelerates resolution of redness and discharge.
• Bacterial keratitis: eradicates causative organisms and promotes corneal healing.
• Post‑operative ocular prophylaxis: prevents infection after eye surgery such as cataract extraction.
• Contact lens‑related infections: treats bacterial contamination associated with lens wear.

• Levofloxacin inhibits bacterial DNA gyrase and topoisomerase IV, enzymes essential for DNA replication and transcription. By binding to these enzymes, the drug prevents supercoiling and separation of DNA strands, leading to bacterial cell death. This bactericidal action is effective against a broad spectrum of Gram‑positive and Gram‑negative ocular pathogens, making it suitable for topical ophthalmic therapy.

Ocular administration of levofloxacin may be associated with a range of local and systemic adverse reactions.

Common Side Effects

• Eye irritation: mild burning or stinging upon instillation.
• Redness: transient conjunctival hyperemia.
• Tearing: increased lacrimation.
• Foreign body sensation: feeling of grit in the eye.
• Blurred vision: temporary visual disturbance.

Serious or Rare Side Effects

• Allergic reaction: swelling, itching, or rash around the eye.
• Corneal ulceration: worsening of corneal integrity.
• Stevens‑Johnson syndrome: severe mucocutaneous reaction.
• Vision loss: sudden decrease in visual acuity.
• Severe ocular inflammation: uveitis or endophthalmitis.

Before using Kinofta, consider the following precautions to ensure safe and effective therapy.

• Allergy assessment: avoid use in patients with known hypersensitivity to fluoroquinolones.
• Corneal integrity: do not use on compromised corneal epithelium without medical supervision.
• Contact lens wearers: remove lenses before instillation and wait before reinserting.
• Systemic absorption: monitor for systemic fluoroquinolone effects in children and the elderly.
• Pregnancy and lactation: use only if the potential benefit outweighs the unknown risk.
• Store at room temperature: keep in the original container, protect from moisture and light.

Levofloxacin may interact with other medications, altering its efficacy or safety profile.

Major Interactions (Avoid)

• Systemic fluoroquinolones: concurrent use can increase risk of systemic toxicity.
• Antacids containing magnesium or aluminum: may reduce ocular absorption if administered simultaneously.
• Warfarin: may potentiate anticoagulant effect, increasing bleeding risk.

Moderate Interactions (Monitor Closely)

• Corticosteroid eye drops: combined use may heighten risk of corneal perforation.
• Non‑steroidal anti‑inflammatory drugs (NSAIDs): monitor for delayed wound healing.
• Diabetes medications: observe for potential alterations in glycemic control.