Europe — EMA
Oculac (Povidone K25)
GNH USA supplies Oculac (Povidone K25), an excipient for ophthalmic solutions that provides viscosity and stability. Request a quote for global supply.
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What is Povidone K25?
Povidone K25, the active ingredient in Oculac, is an excipient presented as a viscosity‑enhancing agent in ophthalmic solutions for ocular use. It provides stability and appropriate flow characteristics in eye drops. GNH USA supplies Oculac as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals and pharmacies worldwide.
What is Povidone K25 used for?
Oculac is used as an excipient in ophthalmic formulations to improve product performance. - Viscosity enhancement: increases the thickness of eye drops for better retention on the ocular surface. - Stabilization: protects active ingredients from degradation and precipitation. - Comfort improvement: reduces irritation by providing a smoother ocular feel. - Compatibility: facilitates mixing with a range of active pharmaceutical ingredients in eye solutions. - Shelf‑life extension: helps maintain product potency over time.
What are the side effects of Povidone K25?
Povidone K25 may cause ocular reactions in some patients.
Common Side Effects: - Burning sensation: mild transient feeling upon instillation. - Stinging: brief irritation that usually resolves quickly. - Redness: temporary conjunctival hyperemia. - Blurred vision: short‑term visual disturbance after application. - Tearing: increased lacrimation that subsides. - Itching: mild pruritus of the eyelid margin.
Serious or Rare Side Effects: - Severe allergic reaction: swelling, rash, or hives around the eye. - Anaphylaxis: rare systemic hypersensitivity requiring immediate medical attention. - Corneal ulceration: persistent inflammation leading to ulcer formation. - Persistent inflammation: prolonged conjunctivitis or keratitis.
What precautions apply to Povidone K25?
When using Oculac, consider the following precautions. - Allergy assessment: avoid if known hypersensitivity to povidone or related compounds. - Contact lens use: remove lenses before instillation and wait before reinserting. - Monitoring: observe for signs of irritation or allergic response after first use. - Contamination prevention: do not use if the container is opened or the solution appears cloudy. - Pediatric use: consult a specialist before administering to children. - Store at room temperature: keep in the original container, protect from moisture and direct sunlight.
What does Povidone K25 interact with?
Povidone K25 may interact with other ophthalmic agents.
Major Interactions (Avoid): - Incompatible preservatives: mixing with certain benzalkonium chloride formulations can cause precipitation. - Reactive polymers: combining with other high‑viscosity polymers may alter solution stability.
Moderate Interactions (Monitor Closely): - Antibiotic efficacy: may affect the penetration of some topical antibiotics. - Contact lens solutions: can interfere with lens cleaning agents. - pH‑sensitive drugs: may modify the pH balance of combined formulations.



