Off balance of talent of Irbesarutan for general practitioner study

INTERVENTION: When the patients do not achieve blood pressure goal,irbesartan will be newly admitted to them.If they have already taken any other angiotensin 2 receptor blocker(ARB), the ARB will be changed to irbesartan. CONDITION: Hypertension PRIMARY OUTCOME: Evaluate renal function, lipid,uric acid,after 6 months. INCLUSION CRITERIA: (1)Older than 20 y.o. and younger than 75 y.o. when informed consent was taken. (2)Patients who gave an written informed consent. (3)Inadequate control of BP(Patients who don not attain target BP of JSH 2009)