Oxitrofur SR Tablet contains Nitrofurantoin 100 mg, an antibacterial agent primarily used for the treatment and prevention of urinary tract infections (UTIs) caused by susceptible strains of bacteria. Nitrofurantoin acts by inhibiting bacterial enzymes involved in carbohydrate metabolism and cell wall synthesis, leading to bactericidal effects. The sustained-release formulation of Oxitrofur SR ensures a gradual release of the active ingredient, maintaining therapeutic plasma concentrations over an extended period, thereby enhancing patient compliance through reduced dosing frequency. It is effective against a broad spectrum of Gram-positive and Gram-negative organisms, including Escherichia coli, Staphylococcus saprophyticus, and Enterococcus species. Oxitrofur SR is indicated for uncomplicated UTIs, recurrent infections, and prophylaxis in patients prone to frequent urinary infections. The medication should be used with caution in patients with renal impairment, as reduced renal function may lead to decreased drug efficacy and increased toxicity. Common adverse effects include gastrointestinal disturbances such as nausea, vomiting, and diarrhea, as well as hypersensitivity reactions like rash and fever. It is contraindicated in patients with known hypersensitivity to nitrofurantoin and in late pregnancy due to the risk of hemolytic anemia in the newborn. Proper hydration and adherence to prescribed dosing are essential to optimize therapeutic outcomes.