Clinical efficacy of the traditional Chinese herbal formula, (Tong Bian Decoction) on laxative dependence constipation in elderly persons: A randomized, multicenter, controlled trial

Constipation is a common problem particularly for older people. This study was designed to evaluate the efficacy and safety of treating laxative dependence constipation patients with the Traditional Chinese Herbal Formula (Tong Bian Decoction).