沉香(xiang),中(zhong)藥名,為瑞(rui)香(xiang)科(ke)植物(wu)白木香(xiang)Aquilaria sinensis(Lour.)Gilg含有(you)樹脂的(de)木材。其分布于廣東、海南、廣西、福建等(deng)地。具有(you)行氣止痛(tong),溫中(zhong)止嘔,納氣平喘之功(gong)效(xiao),常用于胸(xiong)腹脹悶疼(teng)痛(tong),胃寒嘔吐呃逆,腎虛(xu)氣逆喘急(ji)。沉香(xiang)是(shi)知(zhi)名的(de)文玩原料(liao)之一,也是(shi)名貴中(zhong)藥材之一,自古歷代的(de)中(zhong)醫典籍均有(you)記在(zai),并且(qie)被列為上品,