<unk>  or<unk> <unk>  (Piper methysticum: Latin 'pepper' and Latinized Greek 'intoxicating') is a crop of the Pacific Islands. The name<unk>  is from Tongan and Marquesan, meaning 'bitter'; other names for<unk>  include ʻawa (Hawaiʻi), ʻava (Samoa), yaqona or yagona (Fiji), sakau (Pohnpei), seka (Kosrae), and malok or malogu (parts of Vanuatu).<unk>  is consumed for its sedating effects throughout the Pacific Ocean cultures of Polynesia, including Hawaii, Vanuatu, Melanesia, and some parts of Micronesia, such as Pohnpei and Kosrae. The root of the plant is used to produce a drink with sedative, anesthetic, and euphoriant properties. Its active ingredients are called<unk> lactones. A systematic review done by the British nonprofit Cochrane concluded it was likely to be more effective than placebo at treating short-term anxiety. Moderate consumption of<unk>  in its traditional form, i.e., as a water-based suspension of<unk>  roots, has been deemed to present an "acceptably low level of health risk" by the World Health Organization. However, consumption of<unk>  extracts produced with organic solvents, or excessive amounts of poor-quality<unk>  products, may be linked to an increased risk of adverse health outcomes, including potential liver injury.
Kava
Kuru 
Kuru
Samu
Wart
Riken
Uinyeo
Superbill