Black cohosh safety (The Sunday Times, 10 September 2006)

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Q. I am concerned to read that taking black cohosh could be dangerous. I was considering taking this herb to assist with the “change of life”. What do you advise in the light of this news?



A. Native Americans traditionally used black cohosh to treat asthma and joint pain, and to alleviate problems associated with the menstrual cycle. However, in May this year, the Medicines and Healthcare Products Regulatory Agency (MHRA) reported 31 suspected adverse reactions to black cohosh. It says the data supports a causal link between liver toxicity and the herbal remedy. Voluntary labelling will soon be in place to warn customers about potential adverse reactions and herbalists are required to give a verbal warning about any mixture containing it.

As black cohosh has gained a reputation as a natural alternative to HRT, over-the-counter sales of preparations containing a (mainly) standardised extract of black cohosh have multiplied. But it is important to seek professional advice from a qualified herbalist. Western herbalists are generally aware that black cohosh can occasionally cause unpleasant side effects if taken in too large a dosage or by someone who is particularly sensitive to the buttercup family. Therefore, small doses are usually prescribed, and for short periods only. You can find a qualified herbalist in your area through the National Institute of Medical Herbalists (www.nimh.org.co.uk) or the Unified Register of Herbal Practitioners (www.urhp.co.uk).

Over-the-counter remedies vary immensely in strength and quality, so opt for reputable brands such as Bioforce, Boots Alternatives, Lichtwer Pharma, Medicherb or Solgar.




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