This clinical trial is focused on studying the effects of a treatment for primary dysmenorrhea, which is a condition characterized by cramping pain in the lower abdomen that occurs just before or during menstruation. The treatment being tested is a herbal medicine called Vitex agnus-castus BNO 1095, which is derived from the chaste tree fruit. The study aims to determine if this treatment can help reduce the symptoms of primary dysmenorrhea in women.

Participants in the study will be randomly assigned to receive either the Vitex agnus-castus BNO 1095 treatment or a placebo. The study will last for three menstrual cycles, during which the effectiveness of the treatment will be assessed. The goal is to see if there is an improvement in the cramping pain experienced by participants who take the herbal medicine compared to those who receive the placebo.

The study will monitor the participants’ symptoms over the course of the treatment period to evaluate any changes in their condition. The main focus is to observe a reduction in the peak pelvic pain score and to ensure that there is no increase in the use of standard pain relief medication during the treatment. This trial is designed to provide valuable information on whether Vitex agnus-castus BNO 1095 can be an effective option for managing primary dysmenorrhea.