According to that work, our fingernails, our hair, and the urine of prepubescent boys as well as the placentas of newly born infants (called purple river chariots) can all be used as medicinal ingredients.
咱們人類的指甲、頭髮、家裡十二歲以下小男生的尿（童子尿）、嬰兒出生時脫掉的胎盤（又稱紫河車），都可製成藥材。