IRCT2013122114668N2.

Trial name or title	Comparison Effect of Cinnamon Zeylanicum and Ibubrofen for Treatment of Primary Dysmenorrhea ‐ Comparison Effect of Cinnamon Zeylanicum and Ibubrofen for Treatment of Primary Dysmenorrhea
Methods	RCT
Participants	Inclusion criteria: age range "18 to 130 years"; presence of menstrual pains among recent 6 months; regular menstrual cycles Exclusion criteria: history of chronic diseases; history of abdominal/pelvic surgery; usage of OCPs; herbal or drug allergy Location: Iran
Interventions	Group 1: in the experimental group, 2 oral capsules of powdered cinnamon bark extract (420 mg capsule), 3 times a day during in the first 3 days of menstrual cycle for 3 consecutive months Group 2: in the Ibuprofen group, 2 oral capsules 200 mg of Ibuprofen 3 times a day during the first 3 days of each cycle for 3 consecutive months Group 3: in the placebo group, 2 oral capsules containing 420 mg starch 3 times a day in the first 3 days of each cycle for 3 consecutive months
Outcomes	Primary Intensity of menstrual pain. Timepoint: before and 1,2,3,4,8,16,24,48 and 72 hour after intervention. Method of measurement: VAS. Seconday Amount of bleeding. Timepoint: duration first three days of menstrual cycles. Method of measurement: number of used pads. Duration of menstrual pain. Timepoint: onset of pain to stop. Method of measurement: Cox Menstrual Scale. Nausea severity. Timepoint: during first three days menstrual cycles. Method of measurement: VAS.
Starting date	12 December 2012
Contact information	Molouk Jaafarpour (jaafarpour‐@medilam.ac.ir jaafarpourm@gmail.com)
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