Pharmaceutical composition and preparation method thereof
A composition and drug technology, applied in the field of biomedicine, can solve the problems of not obtaining effective parts of medicinal materials, increasing drug side effects, oxidation of salvianolic acid, etc., and achieving the effects of improving bioavailability, improving curative effect and stable quality
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Embodiment 1
[0033] Example 1 Extraction of effective parts of Compound Xueshuantong of the present invention and preparation of compositions
[0034] Grind 2000g of Panax notoginseng, 640g of Radix Astragali, 640g of Scrophulariae Scrophulariae, and 400g of Salvia miltiorrhiza, and pass through a 12-mesh sieve. After mixing the first three herbs, heat and reflux them with 25L and 20L of 75% ethanol to extract twice, the first time for 2 hours, For the second 1 hour, combine the filtrates; recover the ethanol until there is no alcohol smell, add water to precipitate, let stand overnight, filter, and concentrate the filtrate to a crude drug content of 1 g / ml.
[0035] The extract was passed through a macroporous resin chromatography column ( 10*100), first elute with 20L of water until there is no molish reaction, stop the elution, discard the eluate, and then elute with 15L of 20% ethanol, the eluate mainly contains flavonoid extract, concentrate , spray drying to obtain 32g of total fla...
Embodiment 2
[0038] Example 2 Extraction of effective parts of Compound Xueshuantong of the present invention and preparation of its composition
[0039] (1) Grind 2000g of Panax notoginseng, 640g of Astragalus membranaceus, 640g of Radix Scrophulariae, 400g of Salvia miltiorrhiza, and pass through a 12-mesh sieve. After mixing the medicinal materials of Panax notoginseng, Astragalus membranaceus, and Scrophulariae scrophulariae, mix them with 70% ethanol with 8 times and 6 times the amount respectively Heat and reflux for extraction twice, and combine the filtrate; recover ethanol until it has no alcohol smell, add water to precipitate, let it stand overnight, filter, and concentrate the filtrate to a crude drug content of 1g / ml;
[0040] (2) Pass the extract through the macroporous resin, elute with water first, wash with water until there is no molish reaction, stop the elution, discard the eluent, and then elute with 20% ethanol, the eluent obtained mainly contains flavonoids The extra...
Embodiment 3
[0044] Example 3 Extraction of effective parts of Compound Xueshuantong of the present invention and preparation of its composition
[0045] (1) Grind 2000g of Panax notoginseng, 640g of Astragalus membranaceus, 640g of Radix Scrophulariae, 400g of Salvia miltiorrhiza, and pass through a 12-mesh sieve. After mixing the medicinal materials of Panax notoginseng, Astragalus, and Radix Scrophulariae, mix them with 8 times and 6 times the amount of 95% ethanol respectively Heat and reflux for extraction twice, and combine the filtrate; recover ethanol until it has no alcohol smell, add water to precipitate, let it stand overnight, filter, and concentrate the filtrate to a crude drug content of 1g / ml;
[0046] (2) Pass the extract through the macroporous resin, elute with water first, wash with water until there is no molish reaction, stop the elution, discard the eluent, and then elute with 20% ethanol, the eluent obtained mainly contains flavonoids The extract is concentrated, spr...
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