Blood clotting disorders are serious, and the formation of a blood clot in certain parts of the body can be fatal. Plants often contain medicinal properties, and black cohosh is widely available as a potential treatment for menopausal symptoms and other female disorders. As of 2011, there are no known direct blood clotting risks from black cohosh for healthy individuals, or for those with clotting disorders, but clinical research is lacking. Talk to your doctor before using this herb to treat any medical condition.
Blood Clotting Disorders
The development of a blood clot in a vein or an artery is a serious condition. If the clot moves to the heart, it can trigger a heart attack. If it moves to the brain, you could suffer a stroke, and if a blood clot forms in or moves to the lungs, a pulmonary embolism can occur. All three conditions are medical emergencies and are potentially fatal. Talk to your doctor before adding any new supplements or herbal remedies, including black cohosh, to your diet.
Black Cohosh
Black cohosh, or Cimicifuga racemosa, contains alkaloids, triterpene and isoferulic acid, which may be responsible for its medicinal effects. Studies linking black cohosh to blood clotting disorders are nonexistent, but the "Gale Encyclopedia of Alternative Medicine" reports that the herb may decrease blood pressure by "opening the blood vessels in the limbs."
Interactions with Conventional Medications
The University of Maryland Medical Center reports that there are no known interactions when using black cohosh in combination with conventional medications. However, the "Gale Encyclopedia" advises against taking black cohosh if you're currently taking birth control pills, blood pressure medications and sedatives.
Additional Considerations
Side effects are uncommon with black cohosh, but may occur at dosages higher than recommended, according to the "Gale Encyclopedia." When taken in amounts higher than 900 mg per day, you may experience nausea, vomiting, vertigo, reduced heart rate, headache and abdominal cramping. Pregnant women should not use black cohosh because of a potential risk of abortion. Follow your doctor's recommended course of treatment to prevent blood clots.
References
- MayoClinic.com: Blood Clots; Causes
- "PDR for Herbal Medicines, 2nd Edition"; Joerg Gruenwald, PhD, 2000
- University of Maryland Medical Center: Possible Interactions with Black Cohosh
- "Gale Encyclopedia of Alternative Medicine, Volume 2"; Jacqueline L. Longe; 2005
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