Helian capsule and preparation method thereof

The invention belongs to the technical field of traditional Chinese medicine preparations, and particularly relates to a hedan capsule and a preparation method thereof.The hedan capsule internally comprises particles prepared from hedan extract dry powder and auxiliary materials, and the auxiliary materials comprise, by weight, 4.2% of lactose, 9.6% of dextrin and 1.2% of silicon dioxide; compared with the prior art, the method disclosed by the invention has the advantages and positive effects that (1) on the premise of considering the hygroscopicity of the Holdan capsule and the flowability and dissolution rate of particles, the type and the dosage of the optimally added auxiliary materials are determined, and a method for matching the type and the dosage of the auxiliary materials with the quality index of the capsule is creatively given; and (2) through the auxiliary material combination of lactose, dextrin and silicon dioxide in an optimal ratio, the hygroscopicity of the capsule is reduced, the flowabili