Introduction

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.

Dosages

20 milligrams 1 to 2 times per day

What Research Shows

Likely Effective

  • Menopause—likely to ease symptoms and improve quality of lifeB1-B7

May Be Effective

Editorial process and description of evidence categories can be found at EBSCO NAT Editorial Process.

Editorial process and description of evidence categories can be found at EBSCO NAT Editorial Process.

Safety Notes

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.

Interactions

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:

  • Black cohosh can make certain medicine less effective. People taking medicine to suppress their immune system should talk to their doctors before taking black cohosh.

Revision Information

  • Reviewer: EBSCO NAT Review Board Eric Hurwitz, DC
  • Review Date: 07/2019 -
  • Update Date: 09/09/2019 -