Levophta (Levocabastine Hydrochloride)

• Levophta, an ocular antihistamine, is used to manage allergic eye conditions by reducing histamine‑mediated inflammation.
• Allergic conjunctivitis: reduces redness, itching and tearing associated with allergic inflammation.
• Seasonal allergic eye disease: alleviates symptoms triggered by seasonal allergens.
• Allergic keratoconjunctivitis: helps control ocular discomfort and swelling in chronic allergic reactions.

• Levocabastine hydrochloride acts as a selective histamine H1‑receptor antagonist. By competitively binding to H1 receptors on conjunctival blood vessels and mast cells, it prevents histamine‑induced vasodilation, increased vascular permeability and subsequent release of inflammatory mediators, thereby diminishing ocular redness, edema and itching. The blockade is rapid and localized, allowing effective symptom control with minimal systemic absorption. This pharmacologic profile makes it suitable for frequent topical administration in sensitive ocular tissues.

Levophta may cause ocular adverse reactions, most of which are mild and transient.

Common Side Effects

• Burning or stinging sensation upon instillation
• Transient eye irritation or itching
• Mild blurred vision
• Temporary conjunctival hyperemia

Serious or Rare Side Effects

• Severe allergic reaction (e.g., angio‑edema, anaphylaxis)
• Corneal edema or ulceration
• Significant increase in intra‑ocular pressure

• Before using Levophta, consider the following precautions to ensure safe and effective therapy.
• Pregnancy: consult a healthcare professional before use, as safety data are limited.
• Breastfeeding: use with caution; discuss potential risks with a physician.
• Concurrent ocular infection: avoid use until infection is resolved.
• Contact lens wearers: remove lenses before application and wait before reinserting.
• Risk of contamination: use a new dropper tip if the solution becomes contaminated and discard after the recommended period.
• Store at room temperature: keep in the original container, protect from light and moisture.

Levophta can interact with other medications, primarily affecting ocular safety and systemic antihistamine effects.

Major Interactions (Avoid)

• Other topical antihistamines: concurrent use may increase risk of ocular irritation.
• Systemic antihistamines with sedative properties: may enhance drowsiness if systemic absorption occurs.

Moderate Interactions (Monitor Closely)

• Non‑steroidal anti‑inflammatory eye drops: monitor for additive irritation.
• Topical corticosteroids: may mask signs of infection; use under supervision.
• Anticholinergic eye drops: observe for potential additive dryness.