Habitat: Indonesia; cultivated in Indian gardens.
Action: Latex—used for treating fistula, pustules and tumours.
The bark contains a bitter alkaloid (yield 0.25%).A related species, V. grandifolia (Miq.) Rolfe has been introduced into the Indian Botanic Garden, Kolkata. All parts of the plant contain alkaloids which vary seasonally. The trunk bark contains as high as 2.72% of alkaloids on dry basis in November. The leaves contain a mixture of alkaloids (yield up to 1.23% on dry weight basis) containing vobtusine, vobtusine lactone and deoxyvobtusine.