OBJECTIVE Phyllanthus urinaria L.has many chemical constituents,such as flavonoids,lignans,alkal oids and so on.It has obvious effects on againsting the hepaitis B and little toxic to healthy.

• 叶下珠含黄酮类、木脂素类、生物碱类、鞣质等多种成分,具有明显的抗乙型肝炎病毒活性及对肝损伤的保护作用,且毒副作用低,是一种值得深入开发的抗乙肝药物。