Xinju Xiaogao Prescription Study on Overweight

Inclusion Criteria: * Aged 18-60 years old * BMI≥28kg/m2，but\<40kg/m2 * Waistline≥85cm（male）,≥80cm（female） * Pathoglycemia must fulfill one of those four condition: * IGT,7.8≤2hPG≤11.0mmol/, * diabetics take medicine used to treat type 2 diabetes more than 3 month,and 5.6≤FBG≤12.2,and weight change under 4kg. * stagnation of QI causing phlegm retention * To sign informed consent. Exclusion Criteria: * After 3-6 months simply controlling their diet and more exercise treatment, body weight weight loss ≥ 5%. * TG\>4.5mmol/L. * Suffering from congenital heart disease, rheumatic heart disease, kidney disease, serious active liver disease, peptic ulcer disease or malabsorption syndrome. * There is a history of pancreatitis or endocrine diseases other than diabetes, diabetes treated with insulin. * Not suffered myocardial infarction in Past 3 months or unstable angina were confirmed. * Had been diagnosed as "post-surgical adhesions" . * There is a history of appetite or abuse of laxatives * Diastolic blood pressure,uncontrolled or controlled, three times greater than 105mmHg . * Pregnancy, prepare to pregnant or lactating women prepare. * Allergies to Chinese medicine , allergic. * Recurrent gallstone or a history of kidney stones. * Mentally ill. * Cancer patients. * A history of gastrointestinal surgery to lose weight. * Receiving other clinical studies nearly 3 months. * Alcohol and / or psychoactive substances, drug abusers and addicts. * Taking other weight-reducing aid Close within one month