徐长卿为常用的中药，具有祛风化湿、行气通络作用，除在中药处方中使用外，尚有以其为原料制备徐长卿注射或丹皮酚注射液者。《中国药典》１９９５年版规定用其根及根茎。但目前市售品为全草。为保证临床疗效，今对新品及陈旧品的徐长卿根、茎、叶等不同部位的丹皮酚含量... Xu Changqing is a commonly used traditional Chinese medicine that has the effect of removing wind, dampness, and qi and clearing meridians. In addition to its use in Chinese medicine prescriptions, there are still those who use it as a raw material to prepare Xu Changqing injection or paeonol injection. The 1995 edition of the Chinese Pharmacopoeia uses its roots and rhizomes. However, the current commercial product is whole grass. In order to ensure clinical efficacy, the content of paeonol in different parts of new and old products such as Xu Changqing’s roots, stems and leaves...