Zhongguo Zhong Xi Yi Jie He Za Zhi. 2001 Aug; 21(8): 573-5.

[Clinical observation of effect on tongmai yizhi capsule in treating vascular dementia]

Yan XP, Wang H, Zhang TZ.

China-Japan Friendship Hospital, Beijing 100029.

OBJECTIVE: To observe the effect of Tongmai Yizhi capsule (TMYZC) on learning in patients of vascular dementia (VD). METHODS: Thirty patients of VD were treated by oral administration of TMYZC, the changes in them before and after treatment were observed and compared with those in the 20 patients treated with hydergine as control. RESULTS: The total effective rate in the TMYZC treated group was 70.67% while that in the control group was 70.00%, the difference between the two groups was insignificant. CONCLUSION: Both TMYZC and hydergine have the effects of dilating blood vessels, increasing the cerebral blood flow, lowering the hyper-coagulative status and improving the free radical scavenging capability of patients.