Medicament for preventing and treating ischemic brain injury, and preparation method thereof
An ischemic brain injury and drug technology, which is applied in the directions of drug combinations, pharmaceutical formulations, and medical preparations containing active ingredients, etc., can solve problems such as the need to improve the efficacy of
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Embodiment 1
[0155] Embodiment 1, granule preparation
[0156] a) 900g of raw Astragalus membranaceus plus 10 times the amount of ethanol with a mass concentration of 90% was soaked for 12 hours, refluxed and extracted twice, the extracts were combined, centrifuged (15000 rpm), and the supernatant was recovered under reduced pressure at 60-70°C Ethanol, concentrated to a relative density of 1.13 at 50-60 ° C, to obtain the extract I. After soaking raw Radix Astragalus in water for 2 hours, extracting 3 times, the extract was centrifuged (15,000 rpm), and the supernatant was concentrated to a relative density of 1.16 at 50-60°C after separation to obtain the extract II.
[0157] b) After soaking 900g Pueraria Radix and 600g Scutellaria baicalensis with 10 times the mass concentration of 60% ethanol for 12 hours, reflux extraction twice, combine the extracts, centrifuge (15000 rpm), and reduce the supernatant at 60-70°C The ethanol was recovered under pressure, and concentrated to a relativ...
Embodiment 2
[0160] Embodiment 2, granule preparation
[0161] a) 750g of raw Astragalus membranaceus plus 10 times the amount of ethanol with a mass concentration of 90% was soaked for 12 hours, refluxed and extracted twice, the extracts were combined, centrifuged (15000 rpm), and the supernatant was recovered under reduced pressure at 60-70°C Ethanol, concentrated to a relative density of 1.13 at 50-60 ° C, to obtain the extract I. After soaking raw Radix Astragalus in water for 2 hours, extracting 3 times, the extract was centrifuged (15,000 rpm), and the supernatant was concentrated to a relative density of 1.16 at 50-60°C after separation to obtain the extract II.
[0162] b) After soaking 750g Pueraria Radix and 500g Scutellaria baicalensis with 10 times the mass concentration of 60% ethanol for 12 hours, reflux extraction twice, combine the extracts, centrifuge (15000 rpm), and reduce the supernatant at 60-70°C The ethanol was recovered under pressure, and concentrated to a relativ...
Embodiment 3
[0165] Embodiment 3, capsule preparation
[0166] a) 900g of raw Astragalus membranaceus plus 10 times the amount of ethanol with a mass concentration of 90% was soaked for 12 hours, refluxed and extracted twice, the extracts were combined, centrifuged (15000 rpm), and the supernatant was recovered under reduced pressure at 60-70°C Ethanol, concentrated to a relative density of 1.13 at 50-60 ° C, to obtain the extract I. After soaking raw Radix Astragalus in water for 2 hours, extracting 3 times, the extract was centrifuged (15,000 rpm), and the supernatant was concentrated to a relative density of 1.16 at 50-60°C after separation to obtain the extract II.
[0167] b) After soaking 900g Pueraria Radix and 600g Scutellaria baicalensis with 10 times the mass concentration of 60% ethanol for 12 hours, reflux extraction twice, combine the extracts, centrifuge (15000 rpm), and reduce the supernatant at 60-70°C The ethanol was recovered under pressure, and concentrated to a relativ...
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