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银杏(白果树叶)提取物用于治疗疾病已有数百年历史,中国将银杏树的某些部分制成茶治疗哮喘与支气管炎。西方国家用其叶提取物治疗其他疾病,并制成薄膜包衣片、水剂或静脉注射剂。上述制剂在德国与法国为最常用药物。从干的银杏叶中提取有效成分,经过多步操作废弃不需要物质,保留有效成分,最后将提取液浓缩至生药(银杏)的1/50。已有tebonin、tanak、rokan与kaveri等四种银杏制剂,前三种为同一种提取物(EGb 761),只是命名不同,此三种制剂中银杏黄酮甙含量为24％,萜类含量为6％。Kaveri(LI
Ginkgo (Ginkgo biloba) extract has been used in the treatment of disease for centuries, and some parts of Ginkgo biloba are made into tea for the treatment of asthma and bronchitis in China. Western countries use their leaf extract to treat other diseases and make them into film-coated tablets, liquid preparations or intravenous solutions. The above preparations in Germany and France as the most commonly used drugs. Extract the active ingredients from dried Ginkgo biloba, discard the unwanted substances through multi-step operation, retain the active ingredients, and finally concentrate the extract to 1/50 of crude drug (Ginkgo biloba). There are four kinds of ginkgo preparations such as tebonin, tanak, rokan and kaveri, the first three are the same kind of extract (EGb 761) except for the nomenclature. The ginkgo flavonoid glycoside content is 24% and the terpene content is 6 %. Kaveri (LI