Menopause Home > Precautions and Warnings for Black Cohosh
Dosing InformationEven though there is little information available about the best way to dose herbal supplements (compared to prescription or non-prescription medications), many studies of black cohosh for treating menopause symptoms have used similar doses.
Side Effects of Black CohoshMany people believe that "natural" products, such as black cohosh, do not have any side effects. However, many natural products cause side effects, some of which can be quite serious. Black cohosh can cause side effects, such as:
- An upset stomach
- Weight gain
- Breast tenderness.
Drug InteractionsBlack cohosh may interact with a few other medications or supplements (see Black Cohosh Drug Interactions).
Is It Safe?In reasonable doses and for short periods of time, black cohosh is probably safe for many people. However, some people may be more likely than others to experience problems. Therefore, you should talk with your healthcare provider before taking this herb if you have:
- Cancer (or a history of cancer)
- Uterine fibroids
- Had a kidney transplant
- Liver disease, including liver failure, hepatitis, or cirrhosis
- A blood clotting disorder
- Any allergies, including allergies to foods, dyes, or preservatives.
- Pregnant or thinking of becoming pregnant (see Black Cohosh and Pregnancy)
- Breastfeeding (see Black Cohosh and Breastfeeding).