VIntroduction
This fact sheet provides basic information about valerian—common names, what the science says, potential side effects and cautions, and resources for more information.
Valerian is a plant native to Europe and Asia; it is also found in North America. Valerian has been used as a medicinal herb since at least the time of ancient Greece and Rome. Its therapeutic uses were described by Hippocrates, and in the 2nd century, Galen prescribed valerian for insomnia. Today, valerian is used as a traditional remedy for sleep disorders and anxiety, as well as headaches, depression, irregular heartbeat, and trembling.
The roots and rhizomes (underground stems) of valerian are typically used to make supplements, including capsules, tablets, and liquid extracts, as well as teas.