Jiangzhuo Qinggan Prescription and Irbesartan in the Treatment of Essential Hypertension(Hepatogastric Damp-heat)Clinical Study

Inclusion Criteria: 1. Consistent with diagnosed hypertension, blood pressure, for 1-2 grade. 2. Aged 18-65 years old. 3. Body mass index (BMI) ≥ 24kg/m2, but \<35 kg/m2. 4. Waist circumference ≥ 85cm (male) or waist circumference ≥ 80cm (women). 5. Comply with any of the following 3 : triglyceride (TG) elevated levels of:\> 150mg/dl (1.7mmol / l), or has received appropriate treatment; high-density lipoprotein - cholesterol (HDL-C) levels reduced: Men \<40mg/dl (0.9mmol / l), women \<50mg/dl (1.1mmol / l), or has received appropriate treatment; fasting plasma glucose (FPG) increased: FPG ≥ 100mg/dl (5.6mmol / l ), or previously diagnosed type 2 diabetes or have received appropriate treatment. 6. Hepatogastric Damp-heat syndrome differentiation. 7. To sign informed consent. Exclusion Criteria: 1. Has been used to control lipids, blood sugar drugs, but use the time for those below the 1 month. 2. Nearly 3 months, weight loss ≥ 5%. 3. Suffering from congenital heart disease, rheumatic heart disease, congestive heart failure, unstable angina, and had a myocardial infarction, percutaneous transluminal coronary angioplasty (PTCA) or off-line clinical significance of arrhythmia. 4. Bilateral renal artery stenosis, solitary kidney, serum creatinine\> 133μmol / L . 5. Active liver disease, history of chronic persistent hepatitis, ALT\> upper limit of normal. 6. Peptic ulcer or malabsorption syndrome . 7. With insulin-treated diabetes. 8. There is a history of appetite or abuse of laxatives by hyperthyroidism. 9. Pregnancy, pregnancy or breast-feeding women to prepare. 10. For those who are allergic Chinese medicine, allergic people. 11. Mentally ill. 12. Hyperkalemia in patients. 13. Cancer. 14. Occurred within the past 6 months who had a stroke or transient ischemic attack (TIA). 15. Nearly 3 months in patients receiving other clinical studies. 16. Alcohol and / or psychoactive substances, drug abuse and dependency.