The oleo-resin of a species of Brazilian tree. It is stimulating to mucous membranes, as those of the bronchi and alimentary canal. It is also a stimulant diuretic of somewhat irritating character. It is stated that its use has been followed in some instances by strangury and in others by suppression of urine.

Average dose,  xv.-I mil, on sugar, or made into an emulsion with syrup and gum arabic.