Liu Wei Di Huang Wan, also known as Liuwei Dihuang teapills (simplified Chinese: 六味地黄丸; traditional Chinese: 六味地黃丸; pinyin: liùwèi dìhuáng wán) or Six Flavor Rehmanni, is a prescription (方剂 fāng jì) in traditional Chinese medicine and pharmacy to treat yin deficiency.
The formula was created by Qian Yi as dihuang pill (地黄丸).
It was published in "Xiao'er Yao Zheng Zhi Jue" (also known as "Key to Therapeutics of Children's Diseases" or "The Correct Execution of Pediatric Medicinals and Patterns" simplified Chinese: 小儿药证直诀; traditional Chinese: 小兒藥證直訣; pinyin: Xiǎo'ér Yào Zhèng Zhí Jué) in 1119 by Qian Yi's student.
The Liuwei Dihuang Wan is one of the most important Chinese patent medicines, and is widely used in eastern Asia.
[2] In China, there are hundreds of medicinal manufacturers who produce Liuwei Dihuang Wan and its derivatives.