Wushi'er Bingfang

[4] The text was copied in seal script on sheets of silk around 215 BCE, under the Qin dynasty, but might have dated from even earlier.

[5] Modern editors chose its title because the text starts with a list of fifty-two ailments for which recipes are given.

[6] The formulary presents more than 250 exorcistic and drug-based cures for ailments such as warts, hemorrhoids, inguinal swellings, and snake bites.

[8] With roughly 9,950 characters, Wushi'er bingfang is the longest of the medical texts that have been found in ancient Chinese tombs.

[11] And because it shows the development of channel theory in a primitive stage and does not mention the doctrine of Yinyang and the Five Phases, it has pushed historians to date the more sophisticated Huangdi Neijing (Yellow Emperor's Inner Canon) to the first century BCE.

The Recipes for Fifty-two Ailments contains the first known mention of qinghao 青蒿 , or wormwood , [ 1 ] in history. Though it appears here in a recipe against female hemorrhoids , [ 2 ] in later Chinese medical texts wormwood was recommended for treating intermittent fevers . In the 1970s, artemisinin was isolated from Artemisia annua (a kind of wormwood) and shown to have antimalarial properties. [ 3 ]