Tian Wang Bu Xin Dan, also known as Tianwang buxin teapills (simplified Chinese: 天王补心丹; traditional Chinese: 天王補心丹; pinyin: tiānwáng bǔxīn dān), is a Chinese classic herbal formula.
One such formula is found in Volume 6 of "Revised Fine Formulas for Women" (校注妇人良方 jiào zhù fùrén liáng fāng) by Bi Li-zhai (c. 1529 CE).
It was published in "Secret Investigations into Obtaining Life" (shè shēng mì pōu, T: 攝生秘剖, S: 摄生秘剖) in 1638.
Each maker of Chinese patent medicine changes the proportions of the herbs slightly.
The original formula instructed that the pills be coated with zhū shā (朱砂) (Cinnabar), which is banned by the FDA in the US.