Precautions and Warnings for Black Cohosh
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Even 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.
(Click Black Cohosh Dosage for more information.)
Many 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.
(Click Black Cohosh Side Effects to learn more, including potentially serious side effects that you should report immediately to your healthcare provider.)
Black cohosh may interact with a few other medications or supplements (see Black Cohosh Drug Interactions).
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.
Also, let your healthcare provider know if you are:
- Pregnant or thinking of becoming pregnant (see Black Cohosh and Pregnancy)
- Breastfeeding (see Black Cohosh and Breastfeeding).
Make sure to tell your healthcare provider about any other medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
(Click Black Cohosh Safety for more information, including any available warnings and precautions.)