the effect of teucrium polium on the pain duration of dysmenorrhea, the placebo controlled randomized clinical trial

abstract background:  primary dysmenorrhea is a prevalent problem and its effects decrease the quality of life in many women across the world. due to the side-effects of synthetic drugs, there is an increasing trend toward herbal medicine. the aim of this study was to research the effect of teucrium polium compared to placebo on the pain duration of dysmenorrhea.   materials and methods: this triple-blind, randomized, clinical trial study was performed on 70 single female students between 20 and 30 years old educating in shahid beheshti university (tehran, iran) from october 2014 to february2014 .they were allocated randomly into two groups: in teucrium polium group (n =35)   who took 250 mg of teucrium polium   powder q6h for the first 3 days of menstruation for two cycles. the second group (pelacebo) (n=35) received 250 mg starch powder. the pain duration of dysmenorrhea was determined by visual analog scale (vas) and questionnaire related to the pain duration. results: there were no differences between two groups for demographic or descriptive variables. comprising the pain duration showed that the participants in teucrium polium groups had lower significant pain in the 1 st and the 2 nd months after the treatment (p < 0.001) but in pelacebo group, there was not any significant decrease in the pain duration. no side effects were reported in the teucrium polium and pelacebo groups. conclusion: teucrium polium can be effective in decreasing the pain duration in primary dysmenorrhea.