一種用於治療癌症之藥學組成物,包括一有效量之二羥甲戊酸途徑(mevalonate pathway)抑制劑、一有效量之牛樟芝萃取物與一藥學上可接受的載體(carrier)。This invention relates to a method of treating cancer by administering to a subject in need thereof an effective amount of a mevalonate pathway inhibitor and an effective amount of an Antrodia camphorata extract.