A white poisonous glycoside, C29H44O12?H2O, extracted from the seeds of the African trees Strophanthus gratus and Acokanthera ouabaio, that is used as a heart stimulant and by some African peoples as a dart poison.

• 乌本苷一种有毒的白色糖苷，C29H44O12?H2O，从非洲树木旋花羊角拗和尖药木的种子提炼出，用作强心剂并被一些非洲人用来制作标枪的有毒涂抹物