Certain medicines such as Propranolol, Sodium Valproate, Topiramate are used to prevent Migraine attacks. If you suffer from Migraine attacks quiet frequently talk to your doctor who may prescribe preventive medications to you. However, do not use these medicines by your own without consulting your doctor. If you are already taking such preventive medications talk to your doctor about continued use of these drugs. Be sure to have enough stock of your medicines.