Method for preparing freeze-dried powder of Danhong injection for treating cardiovascular, cerebrovascular diseases, and test method
A technology for cardiovascular and cerebrovascular diseases and injections, which is applied in the field of preparation of Danhong freeze-dried powder for injections, and can solve the problems that most impurities cannot be removed, the quality of the preparation is low, and it is not conducive to transportation and storage.
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[0070] A preparation method of Danhong freeze-dried powder for injection for treating cardiovascular and cerebrovascular diseases, comprising
[0071] The medicinal materials of Salvia miltiorrhiza and safflower were extracted separately, and prepared by water extraction and alcohol precipitation method to prepare Danhong stock solution for injection and Danhong freeze-dried powder for injection:
[0072] 1. Add 15kg of Salvia miltiorrhiza to 8 times the amount of water, decoct three times, 1.5 hours each time, combine the decoction, and filter;
[0073] 2. Add 20 times the amount of water to 5kg safflower, soak twice at 80°C for 1 hour each time, and filter;
[0074] 3. Combine the above filtrates, concentrate under reduced pressure to a clear paste with a relative density of 1.15 (60°C), add ethanol to make the alcohol content reach 70%, refrigerate for 24 hours, filter, reclaim ethanol from the filtrate, and concentrate to a relative density of 1.20 ( 60°C), then add ethan...
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