双参归芪胶囊是根据中医中药理论设计 ,由中药双花、苦参、土茯苓、当归、黄芪、莪术组成 ,具有清热解毒、养血活血、祛风止痒作用 ,用于治疗血热、血燥型银屑病。为保证制剂质量及治疗效果 ,用正交设计法研究其最佳生产工艺。1　实验材料双花、苦参、土茯苓、当归、黄芪、莪术 Shuangshen Guiqi capsule is designed according to the traditional Chinese medicine theory and consists of Chinese herbal medicine double flower, Sophora flavescens, Radix Scutellariae, Angelica, Astragalus membranaceus and Curcuma. It has the functions of detoxification, nourishing blood, activating blood circulation, relieving wind and relieving itching, and it is used to treat blood heat, Blood-dry psoriasis. In order to ensure the preparation quality and therapeutic effect, the orthogonal design method was used to study the best production process. 1 Experimental materials Double flowers, Sophora flavescens, Radix Scutellariae, Angelica, Astragalus, Curcuma