Europe — EMA
Monosept (Cethexonium Bromide)
GNH USA supplies Monosept (Cethexonium Bromide), a quaternary ammonium antiseptic for ocular infections and surgical prophylaxis. Request a quote for supply.
Request sourcing
What is Cethexonium Bromide?
Cethexonium bromide, the active ingredient in Monosept, is a quaternary ammonium compound presented as an ophthalmic solution for ocular use. It functions as an antiseptic to reduce microbial contamination on the eye surface and is employed in the management of ocular infections and as prophylaxis in eye surgery.
GNH USA supplies Monosept as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, transplant centres, oncology centres, pharmacies, clinics and eye‑care facilities worldwide. The company adheres to stringent quality standards and provides regulatory support for cross‑border distribution.
What is Cethexonium Bromide used for?
Cethexonium bromide is an ocular antiseptic used to control microbial contamination in various eye‑related conditions. - Bacterial conjunctivitis: Reduces bacterial load on the conjunctival surface, aiding resolution of infection. - Pre‑operative ocular antisepsis: Decontaminates the ocular surface before surgery to lower postoperative infection risk. - Post‑operative infection prophylaxis: Applied after eye surgery to prevent bacterial colonisation and promote healing.
What are the side effects of Cethexonium Bromide?
Cethexonium bromide may cause local ocular reactions, ranging from mild irritation to rare severe events. Common Side Effects: - Stinging or burning sensation: Transient discomfort upon instillation. - Redness of the conjunctiva: Mild irritation that usually resolves quickly. - Blurred vision: Temporary visual disturbance that clears after the solution is cleared. - Tearing: Increased lacrimation as a reflex response. Serious or Rare Side Effects: - Corneal ulceration: Deep corneal injury requiring immediate medical attention. - Severe allergic reaction: Anaphylaxis or angioedema affecting the eye or surrounding tissues.
What precautions apply to Cethexonium Bromide?
When using Cethexonium bromide ophthalmic solution, several precautions should be observed to ensure safety and efficacy. - Hypersensitivity: Avoid use in patients with known allergy to quaternary ammonium compounds. - Corneal integrity: Do not apply to compromised corneal epithelium unless directed by a specialist. - Contact lenses: Remove contact lenses before instillation and re‑insert only after the recommended interval. - Concomitant medications: Monitor for increased irritation when used with other ophthalmic solutions containing preservatives. - Pediatric use: Use only under professional supervision in children. - Store at room temperature: Keep in the original container, protect from light and moisture.
What does Cethexonium Bromide interact with?
Cethexonium bromide can interact with other ophthalmic agents; awareness of these interactions helps prevent adverse outcomes. Major Interactions (Avoid): - Simultaneous use with other ocular antiseptics: May increase corneal irritation and toxicity. - Application with contact lenses: Can cause lens discoloration and reduced comfort; lenses should be removed. Moderate Interactions (Monitor Closely): - Co‑administration with topical antibiotics: Monitor for additive irritation or synergistic effects. - Use with ocular steroids: May mask signs of infection, requiring careful observation. - Systemic antihistamines: May exacerbate dry‑eye symptoms when combined with the antiseptic.


