Objective To observe the effect and safety of Yuxia Capsules （Capsules containing Stigma Maydis and Spica Prunella e） on hypertension based on TCM syndromes and blood pressure decrease （successful rate）.Methods The treatment gr oup consisting of 526 cases was administered Yuxia Capsules and the control group consisting of 528 cases was administered Qingnao Jiangya Tablets （Tablets to clear the brain for lowering blood pressure） for 8 weeks.Before and after treatment

the blood pressure

heart rate

and biochemical indices including blood sugar

b lood fat

liver and kidney functions

blood routine examination

as well as the symptoms such as headache

palpitation

chest fullness

obesity

and lumbar soreness were observed.Results After treatment

the systolic pressur e

diastolic pressure

blood sugar

and urine microprotein of the treatment grou p were statistically different from those before treatment （P<0.05）

and th e systolic pressure

diastolic pressure

heart rate

urine microprotein

and creatin ine of the control group were statistically different from those before treatmen t （P<0.05）.The lowering of systolic pressure and diastolic pressure of the treatment group was more significant than that of the control group.The symptoms including headache

palpitation

chest fullness

lumbar soreness

and obesity of both groups were improved （P<0.05 ）.The comparison between the two groups after treatment showed that

except che st fullness

all other symptoms were improved

and the difference was statistica lly significant （P<0.05）.In lowering the blood pressure

the remarkably ef fective rate （41.83%） and the total effective rate （93.35%） of the treatment group we re superior to those of the control group

the remarkably effective rate and the total effective rate of which were 26.89% and 88.25% respectively （P<0.05） .In the effect of the symptoms

the total effective rate of the treatment group was 88.78% and that of the control group was 80.49%

the difference between was statist i cally significant （P<0.05）

the treatment group was better than the control grou p.The total effective rate of Yuxia Capsules for the excessive phlegm-damp sy ndrome of hypertension was 95.54%

better than for other syndromes （P<0.05）.Con clusion The effect of Yuxia Capsules in lowering blood pressure is obv ious and it can improve the symptoms including headache

palpitation

chest fullness

et c.It is effective for different syndromes of hypertension

especially good for the excessive phlegm-damp syndrome.