Zymar Eye Ointment contains Gatifloxacin 0.3% w/w, a broad-spectrum fluoroquinolone antibiotic indicated for the treatment of bacterial infections of the eye. Gatifloxacin acts by inhibiting bacterial DNA gyrase and topoisomerase IV, enzymes essential for bacterial DNA replication, transcription, repair, and recombination, thereby exerting bactericidal activity against a wide range of Gram-positive and Gram-negative pathogens. Zymar Eye Ointment is primarily prescribed for bacterial conjunctivitis and other superficial ocular infections caused by susceptible organisms. The ointment formulation ensures prolonged contact time with the ocular surface, enhancing drug bioavailability and therapeutic efficacy. It is typically administered as a thin ribbon inside the lower conjunctival sac, with the frequency and duration of treatment determined by the severity and nature of the infection. Patients should be advised to avoid contaminating the applicator tip and to discontinue use if hypersensitivity or severe irritation occurs. Caution is warranted in individuals with a history of hypersensitivity to fluoroquinolones. Zymar Eye Ointment should not be used in viral or fungal eye infections unless specifically directed by a healthcare professional. Proper adherence to prescribed dosing regimens is essential to prevent the development of bacterial resistance and ensure optimal clinical outcomes.