沉香(xiang),中(zhong)藥名(ming),為瑞香(xiang)科植物白木香(xiang)Aquilaria sinensis(Lour.)Gilg含有樹(shu)脂的木材(cai)(cai)。其分布于(yu)(yu)廣(guang)東、海南(nan)、廣(guang)西、福建等地。具有行(xing)氣(qi)止痛,溫中(zhong)止嘔,納(na)氣(qi)平喘之功效,常用(yong)于(yu)(yu)胸(xiong)腹(fu)脹(zhang)悶疼痛,胃寒嘔吐呃逆,腎虛氣(qi)逆喘急(ji)。沉香(xiang)是(shi)知名(ming)的文(wen)玩原料之一(yi),也是(shi)名(ming)貴中(zhong)藥材(cai)(cai)之一(yi),自古歷(li)代的中(zhong)醫典籍均有記在,并(bing)且被列(lie)為上品,