Aconitine, a toxin derived from some of the Aconitum genus plants
Aconite produced from the roots of a number of different species of Aconitum is used ethnomedically in traditional Chinese medicine (TCM), to treat "coldness", general debility, and "Yang deficiency".
Rufus T. Bush died on September 15, 1890, after accidentally taking a fatal dose of aconite.