Huíshēng dān 回生丹

A famous Qīng-period popular formula for emergency obstetrical conditions (especially zǐsǐ fùzhōng 子死腹中, fetal death in utero), preserved with a discursive lùn 論 in 何集庵 Hé Jíān’s compilation and circulated as an appendix to the Wànshì nǚkē recension (KR3ei040).