Black Cohosh

For centuries, the roots of the North American black cohosh plant have been used for various ailments. Black cohosh is now a popular aid for the symptoms of menopause. This has been especially true since the risks of a standard treatment for menopause -- hormone therapy -- were publicized more than a decade ago.

For menopausal symptoms, the dose of black cohosh used in studies has been 20-40 milligram tablets of a standardized extract taken twice a day. More than 900 milligrams a day of black cohosh is considered an overdose. Directions for taking black cohosh in other forms will vary. Some experts say that no one should take black cohosh for more than six months at a time.

Can you get black cohosh naturally from foods?

No. There are no food sources for black cohosh.

What are the risks of taking black cohosh?

  • Side effects from black cohosh include headaches and upset stomach. Side effects may be more likely to occur at high doses. There have been some people who may have developed liver problems after using black cohosh, the specifics of which are still being investigated. Nonetheless, people with pre-existing liver problems, or those taking any other medication/substance that affects the liver, should either avoid black cohosh or check in with their health care provider prior to use.
  • Risks. Black cohosh may not be safe for:
  • Interactions. People taking birth control pills, hormone replacement therapy, sedatives, or blood pressure medicine should not take black cohosh without the approval of their doctors.

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