Pharmaceutical composition for treating myocardial ischemia as well as application of pharmaceutical composition and injection prepared and formed by pharmaceutical composition
A technique for myocardial ischemia and composition, applied in the field of pharmaceutical compositions and their applications and injections prepared therefrom, can solve problems such as difficulty in meeting quality requirements, inability to guarantee medication safety, unclear active ingredients, etc. Clear, safe medication, clear ingredients
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Embodiment 1
[0034]The present invention provides a kind of preparation method containing the injection of the pharmaceutical composition for treating myocardial ischemia, comprising the following steps:
[0035] (1) After getting Ginkgo biloba pulverization, add 95% ethanol and reflux extraction 3 times, each reflux extraction time is 0.5 hour, the quality that adds 95% ethanol at every turn is 10 times of Ginkgo leaf quality; Filter, gained filtrate decompression Concentrate to 0.2 times the mass of Ginkgo biloba, refrigerate for 48 hours;
[0036] (2) Scrape off the slick oil and take off the lower layer liquid;
[0037] (3) Add water for injection to 0.5 times of the quality of ginkgo leaves in the lower layer liquid, and refrigerate for 48 hours; filter, concentrate the filtrate under reduced pressure to 0.2 times of the quality of ginkgo leaves, put to room temperature, add 95% ethanol, make the alcohol content to 82%, the solution after alcohol precipitation was refrigerated, filte...
Embodiment 2
[0042] The present invention provides a kind of preparation method containing the injection of the pharmaceutical composition for treating myocardial ischemia, comprising the following steps:
[0043] (1) After getting Ginkgo biloba and pulverizing, add 96% ethanol and reflux extraction 1 time, each reflux extraction time is 0.4 hour, the quality of adding 96% ethanol at every turn is 11 times of Ginkgo biloba quality; Filter, gained filtrate is decompressed Concentrate to 0.15 times the mass of Ginkgo biloba, refrigerate for 52 hours;
[0044] (2) Scrape off the slick oil and take off the lower layer liquid;
[0045] (3) Add water for injection to 0.65 times of the quality of ginkgo leaves in the lower layer liquid, and refrigerate for 47 hours; filter, concentrate the filtrate under reduced pressure to 0.1 times of the quality of ginkgo leaves, put it to room temperature, add 96% ethanol to increase the alcohol content to 83%, the solution after alcohol precipitation was re...
Embodiment 3
[0050] The present invention provides a kind of preparation method containing the injection of the pharmaceutical composition for treating myocardial ischemia, comprising the following steps:
[0051] (1) After getting Ginkgo biloba and pulverizing, add 93% ethanol and reflux extraction 2 times, each reflux extraction time is 0.3 hour, the quality that adds 93% ethanol at every turn is 12 times of Ginkgo leaf quality; Filter, gained filtrate is decompressed Concentrate to 0.1 times the mass of ginkgo biloba, refrigerate for 47 hours;
[0052] (2) Scrape off the slick oil and take off the lower layer liquid;
[0053] (3) Add water for injection to 0.45 times of the quality of ginkgo leaves in the lower layer liquid, and refrigerate for 52 hours; filter, concentrate the filtrate under reduced pressure to 0.15 times of the quality of ginkgo leaves, put to room temperature, add 93% ethanol, make the alcohol content to 79%, the solution after alcohol precipitation was refrigerated...
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