Sparnij 400mg Tablet is used to treat bacterial infections. It contains Sparfloxacin which works by killing infection-causing bacteria. In some cases, this medicine may cause side effects such as headaches, nausea, vomiting, indigestion, bitter taste, diarrhoea, dizziness, and stomach pain. Inform the doctor if you are pregnant or breastfeeding, taking any other medication, or have any pre-existing medical conditions.