一味药物的来源，大多是一种，但也有两种或几种的，象帜实、贯众、大青叶等药的来源就多达6种以上。随着药材资源的进一步开发，这种现象将会越来越多。严西事首次指出了它的弊端，并称此现象为“名同实异””’。这种现象如不加以纠正，将会严重影响药物的临床疗效。现就名同 The sources of blindly drugs are mostly one species, but there are also two or more species, and there are as many as 6 or more sources of drugs such as Fushi, Guanzhong, and Daqingye. With the further development of medicinal resources, this phenomenon will be more and more. Yan Shixi pointed out its drawbacks for the first time, and he called this phenomenon “a name or reality.” If this phenomenon is not corrected, it will seriously affect the clinical efficacy of drugs.