Mahaflox-400 Tablet is used to treat bacterial infections. It contains Moxifloxacin, which kills bacteria. In some cases, you may experience common side effects like nausea, vomiting, stomach pain, loss of appetite, dizziness, and headache. 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.