Black cohosh is an herb that grows in North America. It has been used to treat symptoms of menopause. It can be taken as an extract, pill, or powder.
20 milligrams 1 to 2 times per day
What Research Shows
May Be Effective
Editorial process and description of evidence categories can be found at EBSCO NAT Editorial Process.
It may be safe to take black cohosh for a short time. Some evidence suggests that black cohosh may cause liver damage. Not enough studies have been done to say whether it is safe to take for a long period.
Talk to your doctor about any supplements or therapy you would like to use. Black cohosh can interfere with treatment or make conditions worse, such as:
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D1. Teschke R, Bahre R, et al. Suspected black cohosh hepatotoxicity--challenges and pitfalls of causality assessment. Maturitas. 2009 Aug 20;63(4):302-314.
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D4. Teschke R, Schwarzenboeck A, et al. Herb induced liver injury presumably caused by black cohosh: a survey of initially purported cases and herbal quality specifications. Ann Hepatol. 2011 Jul-Sep;10(3):249-259.
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Last reviewed July 2019 by EBSCO NAT Review Board Eric Hurwitz, DC
Last Updated: 9/9/2019
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