Kava

Posted in Vitamins,Supplements & Herbs.

Kava is native to the islands of the South Pacific and is a member of the pepper family. Kava has been used as a ceremonial beverage in the South Pacific for centuries.

Common Names—kava, kava kava, awa, kava pepper

Latin NamePiper methysticum

 

 

What Kava Is Used For

  • Kava has been used to help people fall asleep and fight fatigue, as well as to treat asthma and urinary tract infections.
  • Topically, kava has been used as a numbing agent.
  • Today, kava is used primarily for anxiety, insomnia, and menopausal symptoms.

 

How Kava 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.

 

Side Effects and Cautions

  • Kava has been reported to cause liver damage, including hepatitis and liver failure (which can cause death).
  • Kava has been associated with several cases of dystonia (abnormal muscle spasm or involuntary muscle movements). Kava may interact with several drugs, including drugs used for Parkinson's disease.
  • Long-term and/or heavy use of kava may result in scaly, yellowed skin.
  • Avoid driving and operating heavy machinery while taking kava because the herb has been reported to cause drowsiness.
  • Tell all your health care providers about any complementary and alternative practices you use. Give them a full picture of what you do to manage your health. This will help ensure coordinated and safe care. For tips about talking with your health care providers about CAM, see NCCAM'sTime to Talk campaign.

 

Sources

  • Kava. Natural Medicines Comprehensive Database Web site. Accessed at www.naturaldatabase.com on July 14, 2009.
  • Kava (Piper methysticum). In: Coates P, Blackman M, Cragg G, et al., eds. Encyclopedia of Dietary Supplements. New York, NY. Marcel Dekker; 2005:373–380.
  • Kava (Piper methysticum G. Forst). Natural Standard Database Web site. Accessed at www.naturalstandard.com on July 14, 2009.
  • Kava kava rhizome (root). In: Blumenthal M, Goldberg A, Brinckman J, eds. Herbal Medicine: Expanded Commission E Monographs. Newton, MA: Lippincott Williams & Wilkins; 2000:221–225.
  • National Center for Complementary and Alternative Medicine. Kava Linked to Liver Damage.National Center for Complementary and Alternative Medicine Web site. Accessed atnccam.nih.gov/news/alerts/kava/ on June 3, 2010.
  • U.S. Food and Drug Administration. Kava-Containing Dietary Supplements May Be Associated With Severe Liver Injury. U.S. Food and Drug Administration Web site. Accessed atwww.fda.gov/Food/ResourcesForYou/Consumers/ucm085482.htm on June 3, 2010.

 

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