Buzz
St. John's wort
Photo courtesy NIHDepression affects nearly 20 million people in the United States. While it is often managed with prescription medications like Prozac, Paxil, Elavil, and Nardil, these drugs can lead to side effects such as insomnia, headaches, digestive issues, and changes in libido. A 1994 study published in the British Medical Journal found that St. John's wort was as effective as traditional antidepressants, outperforming placebos in alleviating mild to moderate depression.
St. John's wort and its potential benefits are often highlighted in news and media stories. Growing numbers of individuals worldwide are curious about how this herb might help them. Despite its popularity, many remain unaware of its uses, benefits, and possible side effects.
This article explores St. John's wort, its users, and the reasons behind its growing popularity.
Remedy or Ruse
Numerous books have been published about St. John's wort
Photo courtesy Amazon.comSt. John's wort (hypericum perforatum) is a perennial plant with bright yellow flowers, often used as an herbal treatment for conditions like depression and pain. Many individuals with depression are exploring this natural alternative due to the harsh side effects associated with conventional psychotropic medications. The appeal lies in the possibility of fewer adverse effects from a plant-based remedy.
The primary active components in St. John's wort include hypericin, pseudohypericin, and xanthones, with other elements potentially enhancing their effects. Extracts of St. John's wort are typically standardized to contain 0.3 percent hypericin. Adults usually take 300 milligrams three times daily, resulting in a daily intake of 2.7 milligrams of hypericin.
The exact mechanism by which St. John's wort alleviates depression remains unclear. It is believed that hypericin may boost mood-regulating brain chemicals like dopamine and serotonin while reducing adrenal activity, which is often heightened in depression. However, St. John's wort is not without side effects, including light sensitivity, dry mouth, stomach discomfort, dizziness, and fatigue.
It’s crucial to remember that, like many herbal supplements, St. John’s wort can influence the effectiveness of or interact with prescription drugs. Research by the National Institute of Health (NIH) highlights potential interactions with specific medications.
- some HIV infection control medications (e.g., Indinavir)
- certain anticancer or chemotherapy drugs (e.g., Irinotecan)
St. John’s wort might also reduce the efficacy of immunosuppressive drugs prescribed after an organ transplant.
Several small-scale European studies have indicated that St. John’s wort can be beneficial for mild to moderate depression. However, the NIH notes that experts reviewing these studies identified limitations, calling for more rigorous trials. As a result, clinical trials are ongoing in the U.S. to assess its true effectiveness for depression.
A study published in the April 2002 issue of the Journal of the American Medical Association (JAMA) found that St. John’s wort was no more effective than a placebo in treating moderate to severe major depression. The randomized, controlled trial examined the impact of Hypericum perforatum (St. John’s wort) on major depressive disorder.
Since St. John’s wort is sold as a dietary supplement, it falls outside the regulatory oversight of the U.S. Food and Drug Administration. It is essential to use this product only under the guidance of a healthcare professional.
