A popular herbal supplement, ginseng is used for a variety of different purposes. It is made from the roots of ginseng plants and is claimed to help stimulate the immune system and improve mental functioning and overall mental health. Does ginseng work? Early studies suggest that ginseng may be effective for these uses; however, more research is needed to confirm these findings.
Even though ginseng root is available without a prescription, it's important to be familiar with the safety information for this supplement. For example, while most people tolerate it well, ginseng can cause side effects. Some of the commonly reported reactions include high blood pressure, insomnia, and headaches.
(For more detailed information on this supplement, including how it works and why it may not be suitable for certain people, click Ginseng.)