In this episode we talk to Yan Liu about the long history of the use of poisonous medicine in the Chinese medicine tradition, particularly in the medieval era. We delve into topics such as the similarities and differences in the use of poisons in the Western and Chinese traditions, the use of poisons in alchemical practices and the role it played in religious healing practices. The book is open source, and available for download at : https://uw.manifoldapp.org/projects/healing-with-poisons