Zinbro-S Eye Drop is a sterile ophthalmic solution formulated to provide effective relief from bacterial eye infections and associated allergic symptoms. It contains Boric Acid (1.9% w/v), which acts as a mild antiseptic and buffering agent to maintain ocular pH balance, enhancing comfort during use. Chlorbutol (0.5% w/v) serves as a preservative, ensuring the sterility and stability of the formulation. Chlorpheniramine Maleate (0.01% w/v), an antihistamine, helps alleviate allergic conjunctivitis symptoms such as itching and redness by blocking histamine receptors. Sodium Chloride (0.1% w/v) aids in maintaining isotonicity, preventing ocular irritation. The primary antibacterial component, Sulphacetamide (15% w/v), is a sulfonamide antibiotic effective against a broad spectrum of gram-positive and gram-negative bacteria, inhibiting bacterial growth and promoting resolution of infection. Zinbro-S Eye Drop is indicated for the treatment of bacterial conjunctivitis, blepharitis, and other superficial ocular infections, as well as allergic eye conditions. It should be used under medical supervision, with careful adherence to dosing instructions to avoid potential side effects such as local irritation or hypersensitivity reactions. This combination therapy offers a comprehensive approach to managing infectious and allergic ocular disorders, improving patient comfort and visual outcomes.