Herbal products containing ephedra are marketed in the United States as dietary supplements that claim to promote weight loss, increase energy, and enhance athletic performance. The links below provide information on kava:

• Kava Backgrounder

• CRN Complements FDA Consumer Advisory on Kava With Recommendation for Voluntary Cautionary Labels Press Release 03.27.02

• Dietary Supplement Associations Undertake Scientific Evaluation of Kava Press Release 12.20.01