Amy, I am quoting Wise Woman Herbal for the Childbearing Year by Susan S. Weed. I found this information under the heading "Late Pregnancy Tonics," page 23. I hope it gives you the information you need. I have only second hand information regarding the results. Blue/Black Cohosh roots Caulophyllum thalictriodes and Cimicifuga racemosa are safely used as teas or tinctures only during the last 4-6 weeks of pregnancy, not before. The usual dosage is 5-15 drops of each tincture in a cup of water twice daily, or up to two cups of tea a day. The Cohoses work "synergistically, not interchangeably," according to one midwife, who stresses the importance of combination use. Another midwife reports precipitous labor when Blue Cohosh is taken alone or with Pennyroyal during the last six weeks of pregnancy. Then on page 65 it says, and I quote: Blue Cohosh root A strong favorite among lay midwives, Caulophyllum thalcitriodes is a reliable remedy when labor needs promoting. It does not stimulate the uterus into irregular contractions or cause any tightness or clamping down of the cervix. The usual dose is 10-20 drops of the tincture in a small glass of water, repeated hourly or as needed. The water-based infusion is not as useful as some of the active ingredients are not water-soluble. If you must rely on the infusion, try it as an enema. Many midwives use a combination of Blue and Black Cohoses to strengthen or restart contractions. They seem to work better together than alone, a synergistic pair producing regular and coordinated contractions. NOTE: If fetal heart-tones are monitored, there may be a noticeable elevation as the Blue Cohosh starts to work. Also remember that Blue Cohosh tends to lower blood pressure. There you go. That's the extent of information that I have on it. I was given this book for teaching a breastfeeding class for a local midwife who is getting to be very busy. I use it for referrence. Let me know what happens. Melissa Brancho Mom of four, BSC student and IBCLC hopeful for 1998!