Nitrobact-100 Capsule is used to prevent and treat bacterial infections like urinary tract infections (UTIs), including Bladder Infection (cystitis). It is also used to treat kidney infections. It contains Nitrofurantoin, which kills bacteria by entering their cells and destroying their genetic material. As a result, it is effective against bacterial infections. It may cause common side effects like nausea, vomiting, diarrhoea, loss of appetite and headaches. Before taking this medicine, you should tell your doctor if you are allergic to any of its components or if you are pregnant/breastfeeding, and about all the medications you are taking and pre-existing medical conditions.