Underground branched rhizome of the kava plant.
The drug, formerly specified in the German Drug Codex (DAC), may no longer be used medicinally.
HMPC: In 2017, it was decided that the risk exceeds the benefit due to liver damage.
ESCOP monograph: indicated liver toxic effect. Indication: anxiety, tension and restlessness of non-psychotic origin.
Commission E monograph: nervous states of anxiety, tension and restlessness.