Furantez SR Tablet contains Nitrofurantoin 100mg, an effective antibacterial agent primarily used to treat urinary tract infections (UTIs) caused by susceptible strains of bacteria. Nitrofurantoin works by inhibiting bacterial enzymes involved in DNA, RNA, and cell wall synthesis, thereby preventing bacterial growth and replication. Furantez SR is a sustained-release formulation, ensuring a gradual release of the active ingredient, which helps maintain therapeutic drug levels in the bloodstream over an extended period, improving efficacy and reducing dosing frequency. This medication is particularly useful in treating uncomplicated lower urinary tract infections such as cystitis and is often prescribed for both acute and prophylactic use. Furantez SR should be taken with food to enhance absorption and minimize gastrointestinal side effects. Common adverse effects may include nausea, headache, and dizziness, while rare but serious side effects can involve pulmonary reactions, hepatotoxicity, or peripheral neuropathy, necessitating prompt medical attention if symptoms arise. It is contraindicated in patients with significant renal impairment, hypersensitivity to nitrofurantoin, or during late pregnancy. Proper adherence to prescribed dosage and duration is essential to prevent bacterial resistance and ensure successful treatment outcomes. Always consult a healthcare professional before starting or discontinuing Furantez SR Tablet.