IRCT2017010831829N1 IRCT 2017-10-29 Qazvin University of Medical Sciences The effect of Achillea officinalis extract on premenstrual syndrome in female students living in dormitory of Qazvin University of Medical Sciences Effect of Achillea officinalis extract on premenstrual syndrome The effect of Achillea officinalis extract on premenstrual syndrome in female students living in dormitory of Qazvin University of Medical Sciences 2016-05-21 anticipated 360 Complete https://irct.ir/trial/24946 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment. N/A Premenstrual Syndrome. Intervention 1: To the intervention group, an average glass of Achmoravan extract containing 300 μg of active ingredient in Qazvin Ghazvin Flower Company (three times a day for 7 days late luteal phase) was given to the second group of thyme pills containing 15 grams of thyme, made by Barij Orange Co. . After three months of treatment, the daily registration form will be examined and the physical and mental symptoms will be measured separately before intervention, one month after the intervention, two months after the intervention and three months after the intervention. Intervention 2: To the control group, routine therapy usually used by people of their choice (it should be noted that due to the repeated recurrence of this problem, the overwhelming majority of patients with each cycle do not usually visit the treatment centers and based on their own experience of the methods in Different manners are used). After three months of treatment, the daily registration form will be examined and the physical and mental symptoms will be measured separately before intervention, one month after the intervention, two months after the intervention and three months after the intervention.