• The patient must give written (personally signed and dated) informed consent before completing any study-related procedure, which means any assessment or evaluation that would not have formed part of the normal medical care of the patient.• Able to give written inform consent and have a copied one.• Male or female patient age 18 – 65.• Patients are fulfil the International Headache Society diagnostic criteria for migraine• Patients experience an average of 2 to 8 migraine attacks per month over the 3 months and if they recorded 2 to 8 migraine attacks during the screening period. • Patients with prophylactic treatment for migraine have been unchanged for 3 months. • Able to continuation anti – migraine drugs.• Female patient in good general health who is potentially fertile and sexually active must be instructed by the investigator to avoid pregnancy during the study by condom or other contraceptive measure and has negative urine pregnancy test. (if possible at each visit a control of the urine pregnancy test will be performed).• Patients have to judge reliable for medication compliance and recording the effects of medication, as well as clearly motivated to obtain benefit from treatment. • The normal physical and neurological examinations during the whole study period. • Normal result for haematology test • Liver transaminase inferior than 2 upper normal values of the laboratory.