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[Zhu Zhenheng stated] Renzhonghuang (Human Midfield Yellow) is prepared by filling bamboo tubes with powdered Glycyrrhizae Radix et Rhizoma (Licorice Root), sealing both ends with bamboo or wooden plugs, immersing them in a manure pit during winter, retrieving them at the beginning of spring, hanging them in a ventilated place to dry in the shade, splitting the bamboo to extract the licorice, and using it after sun-drying.

[Pu Ji Fang (Universal Beneficent Prescriptions)] records its use for treating tetanus (Po Shang Feng). Take six qian of human fingernails and toenails calcined to retain their medicinal properties (charred but retaining efficacy), two qian of Pinelliae Rhizoma Preparatum (Prepared Pinellia Tuber processed with ginger), two qian of Angelicae Pubescentis Radix (Duhuo), and two qian of Cinnabaris (Cinnabar). Grind into fine powder, divide into two doses, and administer with wine.

[Ming Yi Bie Lu (Record of Famous Physicians)] records that for epistaxis (nosebleed), hair burned to ash can be blown into the nostrils to stop bleeding immediately. [Hua Tuo's Zhong Zang Jing] records cutting hair, stir-frying it in a pot until charred but retaining efficacy, and grinding it. [Text fragment missing] First use Sophorae Radix (Kushen) [dried], put into a jar [text fragment missing].

[Cang Qi stated in Ben Cao Shi Yi (Supplement to Materia Medica)] That for using placenta (Zi He Che), those that are rotting are considered best. One piece as wide as three fingers, once obtained, should be fumigated with fire for one night. After the fishy and foul odor dissipates, [text fragment missing] drug soul [male] [text fragment missing].

[Wu Qiu stated] Zi He Che (Placenta Humanum), ancient prescriptions did not distinguish between male and female. In recent times, males use male placenta and females use female placenta; another view holds that males use female placenta and females use male placenta. Newborn [placenta] membrane, [those steamed] are the most [effective] [text fragment missing].

[Cang Qi stated in Ben Cao Shi Yi] This refers to burying the placenta underground, where after seven or eight years it turns into water, clear and transparent like ice. People in the southern regions mix it with Glycyrrhizae Radix et Rhizoma (Licorice Root) and Cimicifugae Rhizoma (Shengma) along with other herbs, store it in bottles buried in the ground, and after three to five years, dig it out to use as medicine.

[Li Shizhen stated] Whatever coagulates is called fat (Fang) or grease (Zhi); whatever melts is called ointment (Gao) or oil (You). It should be refined cleanly in the twelfth lunar month and stored for use. [Su Gong stated] On the Hai day of the twelfth lunar month, take it into a new bottle, bury it in the north direction (Hai earth) for one hundred days before use, named [pig] fat. Adding fourteen egg whites per sheng improves efficacy. [Tao Hongjing stated] Do not let water enter it. Collect in the twelfth lunar month.

[Cang Qi stated in Ben Cao Shi Yi] For collection, one should select a silver-colored, disease-free white horse, obtain it alive when it is mating season in spring and its strength is at its peak, dry it in the shade, and use it after one hundred days. [Text fragment missing] Use.

[Tao Hongjing stated] All usage requires roasting over fire. [Author name missing] stated that for all usage, first soak it in pig fat for one night, take it out, roast it dry over willow wood fire, and grind it for use [text fragment missing] ointment, or [text fragment missing].

[Author name missing] stated that for all usage, crush and grind finely alone until dust-like, wrap tightly in silk gauze, then wrap again in fresh yellow cowhide, suspend it in a well overnight at a depth of three to four chi from the water surface, and retrieve it early the next morning.