银杏叶为银杏科植物银杏的叶。银杏叶性味甘苦涩平，有益心敛肺、化湿止泻等功效。《中药志》记载它能“敛肺气，平喘咳，止带浊”。据现代药理研究，银杏叶对人体和动物体的作用较为广泛，如改善心血管及周围血管循环功能，对心肌缺血有改善作用，具有促进记忆力、改善脑功能的作用。此外，还能降低血黏度、清除自由基。
目的：建立银杏叶口服液中总黄酮含量的测定方法，为制剂质量控制提供依据。
Objective: to establish a method for determination of total flavonoids in GinKgo oral solution so as to control the quality and to provide scientific basis for something in the preparation.
本文综述银杏叶制剂的研究进展，其中有片剂、胶囊剂、冲剂、口服液、气雾剂及注射液等，并有多种银杏叶的复方制剂。
The studies of preparations of ginkgo leaves, including tablets, capsules, granules, oral solution, aerosol, injection as well as its compound preparations are summarized.
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