Oseltamivir and ribavirin are different in terms of mechanism, indications and contraindications. 1. Mechanism and indications: Oseltamivir inhibits influenza virus neuraminidase and thus exerts anti-influenza virus effects, and is mainly used in the prevention and treatment of influenza A and B. Ribavirin inhibits viral synthetase and thus impairs viral RNA and protein synthesis. Ribavirin inhibits viral RNA and protein synthesis by competitively inhibiting viral synthetase, thus inhibiting viral replication and transmission. It is suitable for viral pneumonia and bronchitis caused by respiratory syncytial virus, and cutaneous herpesvirus infection. 2. Contraindications: Oseltamivir is mainly contraindicated for those who are allergic to this drug. Nausea, vomiting, insomnia, dizziness, and skin changes may occur after use. Ribavirin is mainly contraindicated for those who are allergic to the product, patients with history of heart disease or cardiac disease, patients with autoimmune liver disease, renal insufficiency, active tuberculosis, thalassemia and sickle cell anemia, pancreatitis, and pregnant women. Nausea, vomiting, lack of appetite and other reactions may occur after the use of the drug. It is recommended to consult a professional doctor before using the drug, and follow the doctor’s instructions to use the drug reasonably, do not use the drug without authorization.