Neo-Poly-Dex is a combination medication containing neomycin, polymyxin B sulfate, and dexamethasone. It is used to treat bacterial eye infections.
Neomycin kills bacteria by interfering with protein production. Polymyxin B sulfate damages bacterial cell membranes. Dexamethasone is a steroid that reduces inflammation and swelling.
It is available as eye drops or ointment and is typically used four times a day for 7 to 10 days. Side effects may include eye irritation, blurred vision, stinging, itching, eyelid swelling, and increased tear production. It should not be used if you are allergic to any ingredients or have a viral or fungal eye infection. Consult a doctor before use if pregnant, breastfeeding, or taking other medications.