Piper methysticum Root and Rhizome Powder

DEFINITION

The article consists of the dried root and rhizome of Piper methysticum G. Forst (Family Piperaceae) reduced to powder or very fine powder. It contains NLT 4.5% of kavalactones, calculated as the sum of methysticin, dihydromethysticin, kawain, dihydrokawain, yangonin, and desmethoxyyangonin, on the dried basis.

POTENTIAL CONFOUNDING MATERIALS

Piper wichmannii C.DC.

Piper methysticum var. wichmannii (C.DC) Lebot. 

CONSTITUENTS OF INTEREST

Kavalactones: Kawain (kavain), dihydrokawain, methysticin, dihydromethysticin, yangonin, and demethoxyyangonin

Chalconoides: Flavokavain A–C 

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