The Cochrane Collaboration produces and disseminates systematic reviews of health-care interventions and promotes the search for evidence in the form of clinical trials and other studies of interventions. The Cochrane Collaboration was founded in 1993. They publish the Cochrane Database of Systematic Reviews quarterly as part of the Cochrane Library.
Some of the Chinese herbs include Chinese angelica root (danggui), Szechuan lovage root (chuanxiong), red peony root (chishao), white peony root (baishao), Chinese motherwort (yimucao), fennel fruit (huixiang), nut-grass rhizome (xiangfu), liquorice root (gancao) and cinnamon bark (rougui). In one trial involving 36 women, 53 percent of those who took Chinese herbs reported less pain than usual compared with 26 percent in the placebo group. (No coincidence these herbs are all included in our PMS Relief Herb Pac)