Active substance

Results for the substance polyhexanide

1 result

About this active substance

Polyhexanide is an antimicrobial medicine used mainly as eye drops to treat Acanthamoeba keratitis, a rare and serious infection of the cornea. It occurs most often in contact lens wearers and may cause severe eye pain, redness, light sensitivity and reduced vision. If not treated correctly, it can lead to corneal scarring, transplant or permanent loss of vision.

Treatment should start as early as possible and be prescribed by an ophthalmologist experienced in this infection. The drops are placed in the affected eye according to a strict schedule, very frequently at first during the day and then less often until healing. Wash your hands before use, do not touch the eye with the container tip and do not wear contact lenses unless your doctor allows it.

Side effects are usually local and may include stinging, burning, irritation, tearing, redness, blurred vision or eye pain. Because the infection itself can cause similar symptoms, worsening pain, discharge, increasing redness or reduced vision must be reported quickly. Do not stop the drops simply because symptoms improve.

Careful adherence is essential, since Acanthamoeba keratitis can be difficult to cure and may relapse. Keep all eye appointments and discard single-dose containers after use as instructed. To prevent another infection, avoid tap water with lenses, do not shower or swim while wearing lenses, and never reuse old lens solution.