Objective: To investigate the clinical effect of Qirong Paidu decoction in the treatment of functional constipation with deficiency of both Qi and Yin. Methods: A total of 70 patients with functional constipation with deficiency of both Qi and Yin were randomly divided into treatment group and control group,with 35 patients in each group. The patients in the treatment group were given Qirong Paidu decoction,and those in the control group were given Shengmai Zengyetong capsules. The two groups were observed in terms of stool properties,defecation interval,and scores of clinical symptoms includi...