Black Cohosh

What is black cohosh?

This herb is used as a supplement in the treatment of menopause symptoms.  It has traditionally been used to treat various female health conditions for centuries.

Although there is not yet any scientific evidence, preliminary evidence encouragingly shows that it is effective for treating menopausal symptoms, particularly as a short-term treatment for women with vasomotor symptoms of menopause.

Remifemin is the common herb supplement extracted from the rhizomes and roots of the plant.  These roots and underground stems may be used fresh or dried to make capsules, liquid extracts (tinctures), solid extracts for pills or strong teas (infused).

Black cohosh should not be confused with blue cohosh, which had been used to stimulate labor but showed to have adverse effects to the newborn.  Furthermore, if improperly used, it could stimulate uterine contractions that may result in miscarriage.

It is not really known how this herb works, but it is believed to work like estrogen.  There have been no serious side effects found with using the plant for menopausal symptoms, but there have been nonthreatening side effects such as headaches, rashes or stomach discomfort.

Other side effects might include heaviness in the legs, indigestion, low blood pressure, nausea, perspiration, vomiting and weight gain.  Excessive doses have been linked to irregular or slow heartbeat, seizures and visual disturbances.

The possible adverse effects of the interaction between the extract and other drugs include interference with cisplatin and interference with hormone replacement therapy or oral contraceptives.

While studies have been inconclusive at best, it is recommended that women who have a liver disorder or who develop liver trouble symptoms not use this herb.  It is also unclear if women who have hormone-sensitive conditions such as pregnancy or cancer of the breast, prostate, ovaries or uterus should avoid the herb.

There is continuing interest in the potential benefits of black cohosh in the treatment of menopause and rheumatism.

Studies continue so that the connections between the herb and other drugs can be better understood.  Furthermore, there is still interest in exactly how the extract works.  More long-term studies of the herb and its effects are surfacing so there may be a better understanding of this plant soon.