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银杏叶中的 多种化学成分具 有很好的药效作 用。从60年代 至今,对银杏叶 成分的提取、药 理和临床应用的研究不断深入,银杏叶的药用价值日益看好。银杏叶制剂在医学上应用日渐广泛。 一、含银杏叶提取物的药剂 从银杏叶中提取的含黄酮苷和内酯的银杏叶提取物(即浸膏,EGb)主要用于制备防治心脑血管疾病的药剂。通常把德国斯瓦贝(W.Schwabe)公司生产的EGb761作为银杏叶的标准提取物,这种提取物中含有24％的黄酮苷和6％的内酯(银杏内酯和白果内酯)。药理试验表明:银杏黄酮类化合物用于豚鼠离休
The various chemical constituents in Ginkgo biloba have good medicinal effects. From the 1960s to the present, research on the extraction, pharmacology and clinical application of Ginkgo biloba leaf constituents continues to deepen, and the medicinal value of Ginkgo biloba leaves is increasingly promising. Ginkgo biloba preparations are increasingly used in medicine. I. Pharmaceutical preparations containing Ginkgo biloba extract The Ginkgo biloba extract (ie extract, EGb) containing flavonoid glycosides and lactones extracted from ginkgo biloba leaves is mainly used for the preparation of medicaments for preventing and treating cardiovascular and cerebrovascular diseases. The EGb761 produced by W. Schwabe, Germany, is usually used as a standard extract of Ginkgo biloba leaves. This extract contains 24% of flavonoid glycosides and 6% of lactones (ginkgolide and bilobalide). Pharmacological tests show that ginkgo flavonoids are used in guinea pig retiring