Chinese medical practitioners used extremely toxic plant as a topical anesthetic 600 years ago, study finds | Live Science

An analysis of residue on centuries-old surgical tools reveals the use of a toxic anesthetic in Ming dynasty-era Chinese medicine.

Citation: https://www.livescience.com/archaeology/ancient-china/toxic-plant-on-ming-dynasty-era-surgical-tools-may-be-worlds-oldest-chemical-evidence-of-topical-anesthetic?lrh=ded2aa041e282fa4390fd98ecd2fee6f763acecd562ecaf180b072bb1bec3dbc&shem=rimspwouoe%2C