The Poisoning Of The Emperor Claudius

Mr and Mrs R. Gordon Wasson's forthcoming treatise on mushrooms shows pretty conclusively that Claudius was poisoned by an edible boletus cooked in the sauce of a very similar poisonous variety; that he then vomited up the poison; that he was poisoned a second time with the juice of the Palestinian wild-gourd, or colocynth (2 Kings, iv. 40) administered both orally and by enema; and that he was finally smothered. Seneca seems to have been party to the plot.

Note from Claudius by Suetonius