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[ILLUSTRATION OMITTED]
Native Americans originally discovered black cohosh as a remedy for menstrual cramps and menopause symptoms. Today, doctors in Germany treat these same symptoms with the herb, and in this country, black cohosh is a popular natural remedy for hot flashes and other symptoms of menopause.
"There's very good data in the literature that shows black cohosh does help hot flashes," says Mary Jane Minkin, MD, an ob-gyn in private practice in New Haven, Conn., and professor of obstetrics and gynecology at Yale University School of Medicine. This is some of the key research:
* In a study published in Obstetrics & Gynecology, 304 women experiencing menopausal symptoms were given either black cohosh or a placebo for 12 weeks. The herb was more effective than the placebo and provided relief comparable to hormone replacement therapy. Black cohosh was most effective when taken early, just after the onset of symptoms.
* In a study published in Gynecological Endocrinology, 64 women were given either black cohosh or an estrogen patch for three months. Improvement in hot flashes, anxiety, and depression was comparable for both types of treatment. Unlike women using the estrogen patch, those taking the herb also experienced increased HDL ("good") cholesterol. Both treatments reduced LDL ("bad") cholesterol.
* A review of research, published in Menopause: Journal of the North American Menopause Society, found that black cohosh is a safe and effective alternative to conventional hormone replacement therapy. Based on data from 2,800 patients, this study found that the herb does not affect levels of hormones in the body or increase risk for cancers. The majority of studies tested the proprietary extract Remifemin.
* A study of 244 Asian women, published in Maturitas, found that Remifemin was as effective as conventional hormone replacement therapy and that the herb was safer.