IRCT201707083227N10 IRCT 2017-08-19 University Khomein Medical Sciences Effect of ginger and passion flower On pain in patients with primary dysmenorrhea Comparison of the effect of ginger and passion flower On pain in patients with primary dysmenorrhea 2017-07-18 anticipated 120 Complete https://irct.ir/trial/3303 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Used, Assignment: Parallel, Purpose: Supportive. N/A Primary Dysmenorrhoea. Intervention 1: In intervention group 1 ginger capsule (500 milligrams of ginger root powder), Golgardo Company manufactured in Iran and under the brand name Zinetuma three times a day at the beginning of the menstrual cycle, for three days In 2 months (monthly cycle). Intervention 2: In the third group (control group), one of the commonly used treatments for the treatment of the primary dysmenorrhea, ie, mefenamic acid (250 mg), with the ponstan brand name of Razak Company, is given 4 times every 6 hours for 2 months (monthly cycle). Intervention 3: in intervention group 2, Drop of passion flower with a brand name (Pas pp) made by Iran Daruk Company Iran (20 drops in the morning, 40 drops in the evening) 2 times a day for 2 months (monthly cycle).