Inclusion Criteria:

- Aged between 18 and 75 years;

- Meet the above diagnostic criteria;

- Meet the traditional Chinese medicine syndrome diagnostic criteria;

- Consent and sign the informed consent form

Exclusion Criteria:

- Currently in need of or expected to require high-flow oxygen therapy, positive
pressure ventilation, invasive mechanical ventilation, or extracorporeal membrane
oxygenation (ECMO) and other advanced respiratory support measures;

- Have a known history of active liver disease (excluding non-alcoholic fatty liver
changes), including active hepatitis B or C infection, primary biliary cirrhosis,
Child-Pugh class B or C liver function impairment, or acute liver failure. Liver
function at screening shows any of the following: serum alanine aminotransferase
(ALT) >3× the upper limit of normal (ULN); serum aspartate aminotransferase (AST)
>3×ULN; serum bilirubin >2×ULN;

- Undergoing dialysis treatment, or known to have moderate to severe renal impairment
(i.e., an estimated glomerular filtration rate (eGFR) value calculated based on
serum creatinine using the CKD-EPI formula ≤45 mL/min/1.73 m² within 6 months before
screening);

- Moderate to severe congestive heart failure within 6 months before screening
(according to the New York Heart Association classification criteria, with cardiac
function class III or IV), experienced a stroke, myocardial infarction, or coronary
artery stent implantation; or have uncontrolled hypertension (defined as systolic
blood pressure exceeding 160 mmHg or diastolic blood pressure exceeding 100 mmHg,
with relevant records). Significant or clinically relevant electrocardiogram
abnormalities, such as second-degree type II atrioventricular block, left bundle
branch block, etc.;

- Suffered from influenza A, influenza B, or other infectious diseases within 3 months
before screening;

- Have/ever had severe neurological diseases (epilepsy, convulsions, or seizures) or
mental illness, or have a family history of mental illness;

- Pregnant or breastfeeding. Women who are breastfeeding or have a positive pregnancy
test before taking the medication;

- History of malignant tumors within 5 years before screening, with existing and
progressing tumors, and patients who are expected to need treatment during the study
period;

- Have chronic fatigue syndrome or autoimmune diseases (such as rheumatoid arthritis,
systemic lupus erythematosus, etc.);

- Known allergy to any component of the study drug;

- Diseases judged by the investigator to be unsuitable for participation in this
study;

- Taken traditional Chinese medicine containing Codonopsis pilosula, Ophiopogon
japonicus, Schisandra chinensis, or Astragalus membranaceus within 2 weeks before
screening;

- Participating in other drug or medical device-related studies at the same time