The mean morning blood press of one week \>135/85 mmHg
You may not be if
Secondary hypertension and malignant hypertension
Pregnant or nursing women, or patients that cannot guarantee to take effective contraception measures
Baseline SBP≥180 mmHg or DBP≥110 mmHg, or patients with cerebral, cardiac or renal complications
Have following complications: cerebrovascular accident within 6 months, myocardial infarction or cardiac failure, macroaneurysm or dissecting aneurysm, definite angina, A-V block of grade 2 or higher, sick sinus syndrome, atrial fibrillation or other malignant arrhythmia
Clinical significant diseases of heart, lung, liver, kidney and hematologic system or malignant tumors, HIV infection, uncontrolled diabetes (fasting blood glucose ≥7.0 mmol/L, 2-hour postprandial blood glucose ≥7.8 mmol/L)
Kock pouch
Sever gastrointestinal stenosis
Abnormal laboratory values with clinical significance, including serum potassium \<3.5 or \>5.5 mmol/L, glutamic-pyruvic transaminase (ALT) or glutamic oxalacetic transaminase (AST) \>2-fold upper limit of normal (ULN), Cr \>ULN
Gastrointestinal abnormalities or surgery that may interfere with drug absorption
Hyperthyroidism or hypothyroidism
Allergic to any ingredient or metabolite of investigational drug or drugs of similar structure
