Objective: To study the clinical efficacy of Rongshuan Tongluo capsule in the treatment of thrombo angiitis obliterans added on the basis of routine treatment. Method: Based on the basis of routine treatment

132 patients with thromboangiitis oblitenans(TAD) were randomly divided into two groups

the treatment group (67 cases) accepted Rongshuan Tongluo capsules treatment

and the control group (65 cases) received Mainuoning injection treatment. Two groups were treated for 60 d after treatment

clinical efficacy data were collected and analyzed. Result: after the treatment

the effective rate of treatment group was 90.8%

the effective rate of control group 78.1%

with significant difference (P<0.05). Symptom score showed after treatment the scores in two groups were improved significantly compared with that before treatment. Conclusion: Loaded the Rongshuan Tongluo capsule to the routine treatment for TAO is more effective than the routine treatment. It is convenient and economic and worthy of clinical application.