IRCT201410034529N13 IRCT 2014-12-10 Vice chancellor for research Shahid Beheshti University of Medical Sciences Effect of Capsella Bursa Pastoris on heavy menstrual bleeding Clinical trial of comparing the effect of hydro alcoholic extract of Capsella Bursa Pastoris capsules and Mefenamic acid on the amount and duration of menstrual bleeding in women affected by menorrhagia 2014-01-21 anticipated 90 Complete https://irct.ir/trial/4834 interventional Randomization: Randomized, Blinding: Triple blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Other design features: This study has been done by triple blind method. To do this, patients, researcher and statistical consultant were not aware of prescribed drug's nature. 90 women using Excel software, were randomly allocated to capsella bursa pastoris or control groups. 2 Menorrhagia. Intervention 1: Intervention 1: In Capsella Bursa Pastoris group, Mefenamic acid capsules, 500 mg every 8 hours and hydro alcoholic extract of Capsella Bursa Pastoris capsules, 500 mg per day, every 12 hours,were prescribed, from the first day to the end of bleeding up to seven days. Intervention 2: Intervention 2: In control group, Mefenamic acid capsule 500 mg every 8 hours and placebo capsules 500 mg per day, every 12 hours, were prescribed from the first day to the end of bleeding up to seven days.