Patent ID: 8993007
Filing Date: 2015-03-31
Classification: A61K,A61P

Abstract:
1. A method of preparing a Corydalis extract for anti-tachyarrhythmia treatment, the method comprising: extracting Corydalis crude powder, 100 parts by weight, in 60-80% ethanol, 600-1000 parts by volume, 1-3 times and combining the extracted portions to form a filtrate; concentrating the filtrate under reduced pressure to form a fluidextract of a relative density of 0.2-0.5 g/mL; passing the fluidextract column including a D101 resin at a flow rate of 0.2-0.5 mL/min; washing the fluidextract with deionized water at a flow rate of 0.2-0.5 mL/min to remove impurities; eluting the fluidextract with 60-90% ethanol elution at a flow rate of 0.4-0.8 mL/min; and concentrating the fluidextract to obtain a Corydalis extract dry paste.