Martifur Tablet contains Nitrofurantoin 100 mg, an antibacterial agent primarily used for the treatment and prevention of urinary tract infections caused by susceptible strains of bacteria. Nitrofurantoin acts by inhibiting bacterial enzymes involved in carbohydrate metabolism, thereby interfering with bacterial cell wall synthesis and leading to cell death. It is effective against a broad spectrum of gram-positive and gram-negative organisms, including Escherichia coli, Staphylococcus saprophyticus, and Enterococci species. Martifur is indicated for acute uncomplicated urinary tract infections, recurrent urinary tract infections, and prophylaxis in patients prone to recurrent infections. The tablet should be administered with food to enhance absorption and reduce gastrointestinal discomfort. Dosage and duration of treatment depend on the severity of infection and patient-specific factors, and it is essential to complete the prescribed course to prevent resistance development. Nitrofurantoin is contraindicated in patients with significant renal impairment, known hypersensitivity to the drug, or during late pregnancy due to the risk of hemolytic anemia in the newborn. Common adverse effects include nausea, headache, and pulmonary reactions; therefore, patients should be monitored for signs of hypersensitivity or pulmonary toxicity. Martifur Tablet should be used under medical supervision with appropriate clinical and laboratory monitoring.