采用薄层色谱法对肠肛舒颗粒制剂中赤芍、黄芩、槐角、大黄进行定性鉴别；采用反相高效液相色谱法对制剂中赤芍所含芍药苷进行了含量测定。该方法简便，专属性及重现性好，平均回收率为100.82%,RSD为1.94%（n=6）.

Changgangshu Granule (CG) was a processed Chinese herbal preparation to relieve constipation and hemorrhoid complicated with prolapse. Its contents of Radix Paeoniae Rubra, Fructus Sophorae, Radix Scutellariae and Radix et Rhixoma Rhei were identified by TLC, and paeoniflorin was determined by RP-HPLC. The methods were simple, with good specificity and reproducibility. It's average recovery rate was 100. 82%, and RSD1.94% (n=6).