Inclusion Criteria:  Male or female, aged from 18-65, Vietnamese nationality Participants diagnosed with Positive result of SARS-CoV-2 using real time RT-PCR test, Ct value <30 (equivalent to viral load > 3log) Voluntary participation in the study by signing an informed consent Ability to adhere to treatment according to the investigator's assessment  Exclusion Criteria:  Symptoms of severe upper and lower respiratory tract infections such as dyspnea, SpO2<93%.  Acute reduction of ventilation function of respiratory apparatus and/or respiration function of the lung in any of the following three groups:  Respiratory distress due to hypoxemia with PaO2 less than 60mmHg when breathing room air. Respiratory distress due to hypercapnia with PaCO2 above 50mmHg Mixed respiratory distress accompanied by both a decrease in PaO2 and an increase in PaCO2 Allergy/intolerance to any component of the study drug. Inability to administer medicine. Severe pneumonia as assessed by the investigator. Inability to comply with study procedures or to ensure compliance with study drug administration as assessed by investigators.