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Kava KavaPiper methysticum |
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Kava kava rhizome consists of dried rhizomes of Piper methysticum G. Forster [Fam. Piperaceae].
The primary bioactive constituents are kavalactones (notably demethoxyyangonin, dihydrokavain, yangonin, kavain, or kawain, dihydromethysticin, and methysticin).
Kavalactone content of the rootstrock can vary between 3% and 20% depending on the plant's age and cultivar.
Unless otherwise prescribed
Daily dosage: Herb and preparations equivalent to 60mg. to 120mg. kava pyrones. Standardized extract (70% kavalactones): 100mg. 2 or 3 times daily.