Dripping pills preparation for treating angioneurotic headache

[0032] Weigh Chuanxiong 784g Gastrodia elata 196g

[0033] Ligusticum chuanxiong and Gastrodia elata decoction pieces were taken respectively, dried at 40-60°C, crushed into coarse powder, extracted twice with 60% ethanol, the first time was 1.5 hours, 6 times the amount of ethanol; the second time was 1 hour, 4 times the amount of ethanol. Combine the extracts, concentrate under reduced pressure at -0.09~-0.06Mpa and 60~80°C until there is no alcohol smell, extract with water-saturated n-butanol, and reduce the extract under the conditions of -0.09~-0.06Mpa and 60~80°C Pressure recovery to a relative density of 1.30 to 1.35 at 50°C, drying under reduced pressure at -0.09 to -0.06Mpa and 60°C until there is no n-butanol smell, suspending with 20 times the amount of water, and absorbing with a macroporous adsorption resin, then Elute the resin column with water, then elute the adsorption resin with 30% ethanol, collect the eluate, concentrate at -0.09-0.06Mpa and 60-80°C, and d...