Chasteberry dosage for menstrual cycle?
In doing some research into herbs to regulate menstrual cycles, chasteberry (vitex, monk's pepper) has come up. According to the articles I've seen, it seems to impact hormone levels, particularly progesterone. As low progesterone is associated with certain irregularities and heavy and/or long-term bleeding, I suspect that the effects of vitex might be helpful to my particular problems. Birth control pills, which I recently stopped after several years, did correct both bloodflow and irregularity, so the adjustment of hormones attributed to chasteberry is appealing. Just to clarify: although chasteberry is associated with increased fertility, presumably through regulation, I am seeking only to normalize highly irregular cycles.
(Apologies if anyone finds remarks about bleeding to be too graphic -- then again, "menstrual" WAS in the subject line.) :)
There is enough information out there that vitex seems worth trying; however, I am curious to know more about proper doses. Most of the more scientific articles I've come across have indicated that 20-40mg daily is an appropriate dosage, while the commercially distributed supplements seem to have upwards of 400mg. Teas also exist, but I have not found anything to show the amount present in a prepared cup. Is anyone familiar with this herb and its appropriate application?
Many thanks for any advice!