The Short-term Efficacy of Gastrodia and Uncaria Drink in Treating Hypertension

Inclusion Criteria: * age between 18 to 70 years * didn't use any anti-hypertension drugs within 2 weeks * stage 1 masked hypertensive patients, which means clinic blood pressure\<140/90 mmHg,however the daytime(8:00-18:00) 24h ambulatory blood pressure between 135/85 and 150/95mmHg * be willing to participate in the trials and able to finish clinic visit Exclusion Criteria: * secondary hypertension * be allergic to the clinical trial medicine * occurrence of stroke, CKD, myocardial infarction within 2 years * dysfunction of liver or kidney and fundus hemorrhage * arrhythmia * ALT, AST, TBL upper the twice of normal range, Scr≥2.0mg/dl, K+≥5.5mmol/L, Urine protein≥2+ * psychiatric disorders * pregnant, breastfeeding * other serious conditions in which is not fit for the study