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(kä`vəkä'və): see pepperpepper,
name for the fruits of several unrelated Old and New World plants used as spices or vegetables or in medicine. Old World (True) Peppers

Black pepper (Piper nigrum
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(also, kavakava, Piper methysticum), a shrub of the family Piperaceae (pepper). It grows on the Polynesian Islands and New Guinea. The local population uses the stems, leaves, and rhyzomes of the plant to make a stimulating and highly intoxicating beverage.

References in periodicals archive ?
At the end of the study, anxiety scores dropped by half or more in 37 percent of the kava takers, versus in 23 percent of the placebo takers.
There in the lobby I recognized a plant borrowed from their medicinal garden as kava. Nearby was a similar plant that I was able to identify as betel (Piper betle).
It's known as kava time," says Chris Kilham, an expert on traditional medicinal plants and author of 14 books including Kava: Medicine Hunting in Paradise.
Results published in the Journal of Clinical Psychopharmacology showed a significant reduction in anxiety for the kava group compared with the placebo group, the Herald Sun reported.
But the missionaries couldn't do anything about kava, and maybe one of the reasons why film crews love Fiji so much is that the national pastime is getting blitzed on kava every evening.
"We are very excited to open a new location of Kava Cafe for the MiMA residents and local community on West 42nd Street," said John Saric, founder of Kava Cafe and a partner at the Ace Hotel New York.
Historically kava has been used in the South Pacific as an anxiolytic (Singh 1992).
One risk factor that is likely to increase a person's sensitivity to APAP is the consumption of dietary supplements with unknown safety or drug interaction profiles, such as kava extract.
More recently, kava-induced liver injury was demonstrated to be due to the use of inappropriate kava varieties and plant parts.
Advise against taking kava because of the risk of liver damage 14% Recommend that she try kava in addition to lorazepam 0% Explain that if she wants to take kava, she should do so under 39% physician supervision Suggest she try a different CAM approach, such as yoga, 47% bibliotherapy, or exercise Note: Table made from pie chart.