IRCT20171203037738N1 IRCT 2018-03-16 Iran University of Medical Sciences Effect of Valerian on tension headache THV A review of tension headaches in Iranian medicine and comparison the effects of the of Valerian extraction and placebo on severity and duration of headaches in patients with tension-type headache 2018-04-21 anticipated 110 Complete https://irct.ir/trial/28215 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: We will use random digit for randomization. The unit of randomization is each patients. We will use Microsoft Excel for generation of random digits. Also, this is a double blind RCT and patients and practitioners are not aware about the interventions, Blinding description: Patients and practitioners should be blind about the interventions. N/A Tension Headache. Intervention 1: Intervention group: Valeriana capsule contain 530 mg Valeriana root powder. Intervention 2: Control group: placebo capsule contain 50 mg breadcrumbs powder. No - There is not a plan to make this available Justification or reason for not sharing IPD is No permission for sharing the IPD data