Oftasteril Alfa Intes (Povidone, Iodinated)

• Oftasteril Alfa Intes, a povidone‑iodine ophthalmic antiseptic, provides antimicrobial protection for the eye in several clinical situations.
• Ocular surface antisepsis: reduces microbial load prior to examinations or procedures.
• Pre‑ and post‑operative eye preparation: helps prevent surgical site infection.
• Minor eye injuries: minimizes risk of infection in superficial trauma.

• Povidone‑iodine releases free iodine when applied to the ocular surface. The iodine penetrates microbial cell walls, oxidizes cellular components and denatures proteins, leading to rapid microbial death across a broad spectrum of bacteria, viruses, fungi and protozoa.

Adverse reactions may occur following ocular application of povidone‑iodine.

Common Side Effects

• Stinging or burning sensation at the site of application.
• Redness of the conjunctiva or eyelid margin.
• Excessive tearing or watery discharge.
• Transient blurred vision.
• Mild allergic contact dermatitis of the peri‑ocular skin.
• Temporary irritation of the corneal epithelium.

Serious or Rare Side Effects

• Anaphylactic reaction or severe systemic allergy.
• Corneal ulceration or persistent keratitis.
• Severe pain or photophobia.
• Vision loss due to ocular toxicity.
• Significant intra‑ocular inflammation.

Use of povidone‑iodine ophthalmic preparations requires careful consideration of patient factors and handling.

• Allergy assessment: avoid in individuals with known iodine or povidone‑iodine hypersensitivity.
• Pregnancy and lactation: limit use to situations where benefit outweighs potential risk, as safety data are limited.
• Contact lens wearers: remove lenses before application and wait before reinserting.
• Duration of use: limit to the shortest period necessary to achieve antisepsis.
• Eye condition: avoid in patients with active corneal epithelial defects unless directed by a specialist.
• Store at ambient temperature: keep in original container, protect from light and moisture.

Povidone‑iodine may interact with other agents that affect iodine balance or ocular tolerance.

Major Interactions (Avoid)

• Thyroid hormone therapy (levothyroxine): excess iodine may interfere with absorption.
• Antithyroid medications (e.g., propylthiouracil): iodine load may reduce drug efficacy.

Moderate Interactions (Monitor Closely)

• Concurrent use of other ocular antiseptics: may increase local irritation.
• Preservative‑containing contact lens solutions: additive toxicity possible.
• Systemic iodine supplements: may raise total iodine exposure.