Oxiracetam drug activity composition and preparation method thereof

The present invention provides an oxiracetam drug activity composition, which comprises the following components: a component I, a component II and a component III, wherein the component I is oxiracetam, the component I content is more than or equal to 98.0%, the component II is glycine anhydride, the component II content is more than 0 and is less than or equal to 0.3%, the component III is one or a plurality materials selected from 4-hydroxy-2-oxo-1-pyrrolidineacetic acid, 4-hydroxy-2-oxo-1-pyrrolidine, ethyl 4-hydroxy-2-oxopyrrolidine-1-acetate, methyl 4-hydroxy-2-oxopyrrolidine-1-acetate, and piracetam, the component III content is more than 0 and is less than or equal to 1.5%, the 4-hydroxy-2-oxo-1-pyrrolidineacetic acid content is more than 0 and is less than or equal to 0.5%, and the total content of the component II and the component III is less than or equal to 1.5%. The drug activity composition of the present invention has stable quality, and can completely meet quality requirements on the drug activity composition by oxiracetam preparations. In addition, the prepared preparation has characteristics of safety, effectiveness, and controllable quality, and clinical therapy effects and medication safety of the oxiracetam preparation are ensured.