Does Black Cohosh interact with Evening Primrose Oil?

Written to our editorial standards · reviewed against published research· Updated 2 Jun 2026
Take together· emerging evidence

Menopause-symptom support.

Black cohosh is used for menopausal hot flushes and night sweats, while evening primrose oil's GLA is taken for cyclical and breast symptoms, so the pair is combined for the overlapping discomforts of the menopause transition.

What to do

Discuss this with a clinician first, especially with a hormone-sensitive condition or liver concerns, since black cohosh has rare liver-safety reports. Give it several weeks, and treat heavy or unusual bleeding as a reason to see a doctor promptly.

Learn more
Black Cohosh
Full guide →
Learn more
Evening Primrose Oil
Full guide →

Common questions

Can I take Black Cohosh and Evening Primrose Oil together?
Take together. Discuss this with a clinician first, especially with a hormone-sensitive condition or liver concerns, since black cohosh has rare liver-safety reports. Give it several weeks, and treat heavy or unusual bleeding as a reason to see a doctor promptly.
Why do Black Cohosh and Evening Primrose Oil interact?
Black cohosh is used for menopausal hot flushes and night sweats, while evening primrose oil's GLA is taken for cyclical and breast symptoms, so the pair is combined for the overlapping discomforts of the menopause transition.

Explore further

More Black Cohosh & Evening Primrose Oil interactions

Check your whole stack at once

Paste everything you take, our free checker flags every interaction, redundancy, and timing issue.

Run the free interaction checker →

Educational use only, not medical advice. Interaction risk depends on dose, your health, and any medications. Always consult a qualified clinician, especially if you take prescription drugs or are pregnant or nursing.