A Multicenter, Randomized, Double-Blind, Parallel, Active-controlled, Phase III Clinical Trial to Evaluate the Efficacy and Safety of AGS Compared to AGU for Acute Bronchitis

Inclusion Criteria:

• Both gender, 19 years ≤ age ≤ 75 years
• BSS(Bronchitis Severity Score) ≥ 5point at Visit 2 (Randomized Visit)
• Patients without fever based on Visit 2(Randomized Visit)
• Those who can comply with the requirements of clinical trials
• Written consent voluntarily to participate in this clinical trial

Exclusion Criteria:

• Patients with respiratory and systemic infections requiring systemic antibiotic therapy
• Patients with bleeding tendency or coagulation disorder
• Patients who investigators determines to severe respiratory disease that would interfere with study assessment
• Those who have participated in other clinical trials within 4 weeks before participating in clinical trials
• In case the investigator judges that it is not suitable for the subject of this clinical trial for other reasons