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Black cohosh Side Effects

Applies to black cohosh: oral tablet

Get emergency medical help if you have any of these signs of an allergic reaction while taking black cohosh: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Although not all side effects are known, black cohosh is thought to be possibly safe when taken for a short period of time (up to 1 year).

Black cohosh can harm your liver. Stop using this product and call your doctor at once if you have signs of liver problems, such as:

  • nausea, loss of appetite, upper stomach pain;

  • itching, tired feeling;

  • dark urine, clay-colored stools; or

  • jaundice (yellowing of the skin or eyes).

Common side effects may include:

  • stomach pain or upset;

  • heavy feeling;

  • vaginal bleeding or spotting;

  • headache;

  • rash; or

  • weight gain.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

Some side effects of black cohosh may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. This information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate safety, effectiveness, or appropriateness for any given patient. Drugs.com does not assume any responsibility for any aspect of healthcare administered with the aid of materials provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the substances you are taking, check with your doctor, nurse, or pharmacist.

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