乌药,
radix lindera, is present in the
Compendium of Materia Medica and
Kampo herb list. It is an ingredient in the traditional Chinese medicine pill
Chaihu Shugan Wan against "stagnation of liver qi, distension of chest and hypochondria, indigestion, and acid eructation", and in the Lindera Combination Teapills (simpl. 天台乌药丸, trad. 天臺烏藥丸, pinyin : tiāntái wūyào wán), a
Chinese classic herbal formula. ==Biochemistry==