Special Drug Use Investigation - Assessment of Efficacy and Safety in Treating Secondary Infection of Chronic Respiratory Disease

Inclusion Criteria: * Patients with secondary infection of chronic respiratory disease (excluding acute bronchitis patients who have been determined to be without chronic respiratory tract disease based on their medical history, x-ray findings, and/or other findings) who meet the following criteria: * 20 years old or older * with infection of mild or moderate severity * Patients who meet the following criteria immediately before starting the therapy: ≥37°C of body temperature, expectoration of purulent or mucopurulent sputum, and either white blood cell count ≥8,000/mm3 or CRP ≥0.7 mg/dL Exclusion Criteria: * Patients who are contraindicated based on the product label.