A plant extract from a medical plant, preferably from
Cimicifuga racemosa
, is produced by treating a solid plant material with an extraction agent. preferably an aqueous alcanol, to obtain an extraction liquid containing the extract dissolved in said extraction agent; separating said extraction liquid from said solid plant material; and concentrating said extraction liquid by at least partially removing said extraction agent to produce a concentrated extract. According to the invention, concentrating the extraction liquid is effected in the presence of an effective amount of a pharmacologically acceptable and physiologically inert solution mediator. This yields a novel extract and avoids loss of constituents of the extract liquid upon concentration thereof. The extract obtained is can be used as a medication capable of binding estrogen receptors as well as progesterone receptors and is effective for treating climacteric and post menopausal distress.
一种药用植物的
植物提取物,最好来自
Cimicifuga racemosa
本发明的制备方法是:用萃取剂(最好是烷醇
水溶液)处理固体植物材料,得到含有溶解在所述萃取剂中的
提取物的萃取液;将所述萃取液与所述固体植物材料分离;通过至少部分去除所述萃取剂浓缩所述萃取液,得到浓缩
提取物。根据本发明,提取液的浓缩是在有效量的药理学上可接受的生理惰性溶液介质存在下进行的。这样可以得到一种新的
提取物,并避免提取液中的成分在浓缩时流失。获得的萃取液可用作药物,能够结合
雌激素受体和
孕酮受体,对治疗更年期和绝经后的痛苦有效。