Oseltamivir granules have antiviral effects. Oseltamivir granules are neuraminidase inhibitors that inhibit influenza virus replication, reduce pathogenicity, alleviate influenza symptoms, shorten the course of influenza, and reduce the occurrence of complications. Oseltamivir granules have low toxicity, reduce the severity of the disease, and the occurrence of drug resistance is relatively low, making it a more effective drug for the treatment of influenza. It is recommended to give oseltamivir in the early stage of influenza, which can effectively shorten the course of the disease, reduce complications and allow patients to recover health as soon as possible.