Black Cohosh, (Cimicifuga racemosa) also known as Black Snakeroot because it was traditionally used to treat snake bites, is a North American forest plant.

It is reported to be a highly effective herb for treating menopausal hot flashes. Black Cohosh stimulates oestrogen-like activity in the body, and should be taken in fairly high doses twice a day for best results. Women undergoing oestrogen replacement therapy should consult their doctors prior to supplementing with Black Cohosh.

The active constituents in black cohosh, that are reported to provide its medicinal value, include triterpene glycosides (e.g. acetin and deoxyactein) and isoflavones. Additional ingredients that may lend to its medicinal value include aromatic acids, resins, fatty acids, tannins, starches and sugars.

As a woman reaches menopause, oestrogen production decreases while luteinizing hormone (LH) secretions start to increase. The result is often that the woman suffers intense hot flashes. Studies suggest that black cohosh has some oestrogen regulating ability and may also decrease LH secretions whereby dampening the severity of hot flashes associated with menopause.

Black Cohosh can be taken in the form of the fresh or dried root, in tea form or as a liquid extract or tincture. It is also available commercially in capsule and tablet form.

Cautions

Breast-feeding or pregnant women should not take black cohosh. Large amounts (over several grams daily) of black cohosh can cause abdominal pain, dizziness, headaches, and nausea. Black cohosh should not serve as an alternative for hormone replacement therapy during menopause.

Additionally, women with breast cancer may want to abstain from black cohosh until its impact on breast tissue is understood.