St. John's wort (Hypericum perforatum)
Abstract and key points
- St. John’s wort is an effective anti-depressive agent.
- Some people also promote it as a cancer drug but there is no good evidence to support this claim.
- St. John’s wort is generally a safe remedy but can powerfully interact with several drugs used for cancer patients.
Hypericum perforatum (St. John’s wort) is a perennial flowering plant, preparations of which are popular as an anti-depressant and are also being promoted as an alternative cancer therapy. Even though some preliminary pre-clinical investigations have generated encouraging findings, there are no clinical studies to show that St. John’s wort would change the natural history of any type of cancer. St. John’s wort may reduce the blood levels of many conventional drugs, including some cancer medicines. Rare adverse effects include psychological symptoms, allergic reactions and visual disturbances.
|Citation||Karen Pilkington, Edzard Ernst, CAM-Cancer Consortium. St. John's wort (Hypericum perforatum) [online document]. http://ws.cam-cancer.org/The-Summaries/Herbal-products/St.-John-s-wort-Hypericum-perforatum. September 21, 2016.|
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