[Textual research on Han-Chinese formulae collected in Tubo medical manuscript unearthed in '].

A Tibetan manuscript with title of ----'- in the , was found in the basement of a Buddhist tower named '-- in Lhokha (Shannan), Tibet. It contains a purgative recipe of TCM with its title "Powder of Han Region" and several ingredients in Chinese transliteration. Based upon the rule of medieval Chinese system of pronunciation with reference of related texts and studies, a textual research identifies it as a kind of (seed of Cannabis sativa L. ) wan in TCM. Although no identical formulae of its kind has been found in extant literature of TCM prior to the Song Dynasty(960 AD), yet its ingredients, pharmaceutical preparation and efficacy are very similar to the , the variant formulae of in () of the Tang Dynasty.