St. John's Wart

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St. John's Wort? St. John's wart is a common misspelling of St. John's wort.

People who experience depression may benefit from using St. John's wort (Hypericum perforatum). This naturally occurring substance is used in several supplements and is claimed to help treat depression and other health conditions. While it has been proven to help with depression, more research is needed to determine the herb's effectiveness for other uses.

Even though St. John's wort is a "natural" product, it may not be suitable for everyone. Possible side effects include insomnia, diarrhea, and nausea. People with Alzheimer's disease, schizophrenia, or bipolar disorder may need to avoid the supplement.

(Click St. John's Wort for more information on how the supplement works, a more complete list of potential side effects, and important things to tell your healthcare provider before taking it. You can also click any of the links in the box to the right for specific information.)