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Botanical illustration of Blue Cohosh Root
MedicinalSourced entry

Blue Cohosh Root

Caulophyllum thalictroides

An eastern North American root used to bring on labor. It has caused severe heart, circulation and gut problems in mothers and newborns.

Safety at a glance

Tap a box to read the safety notes below. “Nothing recorded” means our sources don't cover it, not that it's safe.

What is Blue Cohosh Root?

Plant family
Berberidaceae, the barberry family
Parts used
The root
Where it grows
Eastern North America
Genus
Caulophyllum
Species
thalictroides

Also called

Blue Cohosh, Papoose Root

Traditionally used for

  • Bringing on labor

Traditionally described as

  • Nicotine-like alkaloids

Natural compounds

Safety

Pregnancy

  • Blue cohosh can cause severe stomach, bowel, heart and circulation problems, including in newborns whose mothers used it to bring on labor. It's one of the herbal abortion remedies linked to serious illness and death.[1]Study

Breastfeeding

  • Most sources strongly advise against using it while breastfeeding, because of its possible toxicity and the lack of safety data.[2]Health agency

What does the research say?

Traditional use

These are traditional uses, not proven treatments.

Laboratory & animal research

Lab and animal results show what might be worth studying in people. They don't show that the herb has these effects in humans.

  • The root contains N-methylcytisine, which acts like nicotine, and caulosaponin, which narrows the heart's blood vessels and may make the womb contract.[2]Health agency

In short

Can cause severe heart and circulation problems, including in newborns.

Sources

  1. [1] Toxicities of herbal abortifacients · DOI: 10.1016/j.ajem.2023.03.005Peer-reviewed study
  2. [2] Blue Cohosh — Drugs and Lactation Database (LactMed) — U.S. National Library of Medicine, National Institutes of HealthGovernment health agency

This information is educational and traditional in nature, and is not a substitute for professional medical advice. Unfamiliar word? See what these words mean.