I bought this to hopefully make my uterus tighten more effectively for labor (with my midwife's OK).  I am a pharmacist, and usually very skeptical of the efficacy of natural products but I heard good things about this and was willing to give this a try after going 10 days overdue with my first baby.  So at 39 weeks pregnant, I steeped a teabag for 15 minutes and drank the tea.  I IMMEDIATELY started noticing strong/painful Braxton Hicks contractions, similar to right before I went into labor with my first daughter. I was very surprised as to how quickly I had an effect, and how well it seemed to work.  HOWEVER, I started drinking it a few days later on a regular basis, and noticed only very mild Braxton Hicks contractions afterwards. Not sure what happened the first time or if it even did anything, but I had my baby the day after my due date, and after only 3 hours of labor (and 2 pushes).