Java Tea (Orthosiphon stamineus beuth.)

Originating from Southeast Asia, Malaysia and Australia, this plant grows from 40 to 80 cm.

Parts used:

Dried leaves, stems

Botany

Originating from Southeast Asia, Malaysia and Australia, this plant grows from 40 to 80 cm.

Constituents

Particularly abounding in triterpenoid saponin (aglycone hederagenin), diterpenes (notably orthsiphol A and B) and flavanoids (eupatorin, sinesetin). Rich in potassium.

Possible Interactions

Herbs - None documented. Drugs - None known.

Comments

Studies in rats have reported diuretic activity of extracts of O. stamineus. This has also been demonstrated in the horse. O. stamineus has been shown to inhibit 5-lipoxygenase with the inhibitory activity of the whole extract being greater than could be expected from the activities of each of its flavonoid constituents (synergism may be occurring). O. stamineus extract has also been shown to inhibit spore germination in fungal species tested: Saccharomyces pastorianus, Candida albicans, Rhizopus nigricans, Penicillium digitatum, Fusarium oxysporum and Trichophyton mentagrophytes.

➥ Pharmacopoeia and Other Monographs

ESCOP 2003, BP 2007, Ph Eur 2007German

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