- Valerian is a plant native to Europe and Asia; it also grows in North America.
- Valerian has been used medicinally since the times of early Greece and Rome. Historically, valerian was used to treat insomnia, migraine, fatigue, and stomach cramps.
- Today, valerian is promoted for insomnia, anxiety, depression, premenstrual syndrome (PMS), menopause symptoms, and headaches.
- The roots and rhizomes (underground stems) of valerian are used for medicinal purposes.