Congrong Runtong Oral Liquid

Using a placebo as a control, this study aims to preliminarily evaluate the clinical efficacy of Congrong Runtong oral liquid for the treatment of functional constipation (Yang-deficiency type), explore the optimal dosage of Congrong Runtong oral liquid for functional constipation (Yang-deficiency type) to provide a basis for dosage selection in Phase III clinical trials, and observe the safety of clinical use of Congrong Runtong oral liquid.

观察苁蓉润通口服液在健康受试者中单次和连续口服给药的安全性和耐受性，探索最大耐受剂量（MTD），为Ⅱ期临床试验推荐剂量范围。