Valance 500 Solution is used to treat epilepsy/seizures/fits. Additionally, it is also used to treat manic episodes associated with bipolar disorder and to prevent migraine. It contains Divalproex sodium, which decreases the brain's excessive and abnormal nerve activity. Thereby helps in controlling seizures. It helps block the nerve transmission across the brain and provides a calming effect. Thereby, helps treat bipolar disorder. In some cases, it may cause common side effects, such as abdominal pain, back pain, constipation, diarrhoea, dizziness, nausea, increased appetite, and vomiting. 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.