Black Cohosh

Also known as: baneberry, bugwort, black snakeroot, cimicifuga, rattle root, squaw root.

Potential uses: It's thought that black cohosh can relieve menopausal symptoms, especially hot flashes.

Usual dose: An extract containing one milligram of active ingredient taken twice per day.

Are there any risks? Black cohosh may be safe at recommended doses, but possible side effects include liver damage and autoimmune hepatitis.

What does the research show? One clinical trial in women with breast cancer showed that black cohosh gave no more relief from hot flashes than a placebo (sugar pill). Preliminary work on individual cells suggests black cohosh may act on estrogen receptors in some way and is associated with lowered breast cancer risk. Until more is known, women with breast cancer or who are at high risk for breast cancer should avoid black cohosh.