Therapeutic Confirmatory Clinical Trial to Evaluate the Safety and Efficacy of "AG NPP709 Syrup"

Inclusion criteria

• Parent s or patient who decided to participate in this clinical trial at his (her) own will and agreed in written letter of consent
• Patient ages between 24months and 75years
• Patient with a clinical diagnosis of acute upper respiratory tract infection or chronic inflammatory bronchitis should has any combination of at least two of following symptoms including sputum: cough, sputum, dyspnea and chest pain when breathing
• Females of child-bearing age should have nagative pregnancy test or have sufficient contraceptive protection

Exclusion criteria

• Patient whose the following severe respiratory disease: pneumonia, uncontrolled asthma, pancreatic fibrosis viral influenza, tuberculosis
• Patient whose the following disease: malignant tumors, severe central nervous system disorders, medication needed severe metabolic disorders
• Patient whose fructose intolerance
• Patient who has hypersensitivity anamnesis of Prospan syrup
• Patient whose heart function is abnormal: cardiac insufficiency, including the case of showing abnormal EKG test value that is clinically significant
• Patient whose liver or kidney function is serious abnormal: including the cases of ALT, AST, bilirubin and blood creatinine value exceeding three times of their upper limit, severe liver disorders, chronic kidney disease
• Patient who has uncontrolled diabetes or uncontrolled hypertensions
• Patient who has experience to have participated in other clinical trial within two months before starting the trial
• Pregnant women, lactating women