| abstract |
The invention discloses a preparation process of a solid preparation of Dachaihu Decoction provided by the invention, which comprises the following steps: (1) selecting decoction pieces of medicinal materials that pass the inspection according to national standards; (2) mixing the medicinal materials evenly according to the prescription ratio, adding 5 to 10 times (v/w) water, heated to boil, and kept at a slight boil for 1 to 2 hours; (3) after the extraction by slight boiling, filtered, and the filtrate was heated and boiled, and kept at a slight boil for 0.5 to 1 hour; (4) after slight boiling The extract is removed by high-speed centrifugation to remove impurities and macromolecular substances to obtain a clarified extract; (5) the extract is concentrated under reduced pressure and low temperature to a certain relative density for later use; (6) the concentrate is added with a certain proportion of auxiliary materials or No auxiliary materials are added, mixed evenly, and quickly dried into powder by spray drying; (7) Prepared into granules by wet granulation, dry granulation or boiling granulation. The Dachaihu Tang solid preparation prepared by the invention is convenient to carry, convenient to take, convenient to store and beneficial to marketization. |