SiddhaTamil Sonapaati Thanga Arali Naga Sambagam
Tectona grandis Linn. f. 649
Action ► Leaves—hypoglycaemic (tecomine and tecostanine are hypoglycaemic alkaloids).
Root—diuretic, vermifuge. The flowers contain beta-carotene and zeaxanthin. The plant gave phenolic acids, beta-sitosterol and triterpe-noids—ursolic acid, oleanolic acid and alpha-amarine. An indole-metaboli-zing enzyme, indole-oxygenase, has been isolated from the leaves. Antidiabetic activity of the plant was tested on streptozotocin-induced diabetic rats.
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