Clinical Research on Sanhuangwan Treating Ulcerative Colitis;

Study on the Quality Standard of SijiSanhuang Tablets;

Studies on Standard for Quality Control of Sanhuang Qingxin Pill;

Objective:to carry out the process of preparation of Sanhuang Xiexin Drop pill, study on and establish a strict and scientific quality standard of which,and take preliminary stability test into being.

Preparation and quality control of Shanhuang Pellets;