The name of your medicine is Epilim Chrono 500 Controlled Release Tablets. “Controlled release” means that the active ingredient sodium valproate is slowly released from the tablets over a period of time. Epilim Chrono contains sodium valproate. It belongs to a group of medicines called anti-convulsants or anti-epileptic agents. It works by helping to calm the braindown. Epilim Chrono is used to treat epilepsy (fits) in adultsand children.