Introduction

This fact sheet provides basic information about the herb kava--common names, uses, potential side effects, and resources for more information. Kava is native to the islands of the South Pacific and is a member of the pepper family.

Common Names--kava kava, awa, kava pepper

Latin Names--Piper methysticum

What It Is Used For

• Kava has been used as a ceremonial beverage in the South Pacific for centuries.
• Kava has also been used to help people fall asleep and fight fatigue, as well as to treat asthma and urinary tract infections.
• Topically (on the skin), kava has been used as a numbing agent.
• Today, kava is used primarily for anxiety, insomnia, and menopausal symptoms.

How It Is Used

The root and rhizome (underground stem) of kava are used to prepare beverages, extracts, capsules, tablets, and topical solutions.

What the Science Says

• Although scientific studies provide some evidence that kava may be beneficial for the management of anxiety, the U.S. Food and Drug Administration (FDA) has issued a warning that using kava supplements has been linked to a risk of severe liver damage.
• Kava is not a proven therapy for other uses.
• NCCAM-funded studies on kava were suspended after the FDA issued its warning.