Uncertain if it's influenza, can one take oseltamivir?

Oseltamivir is commonly available in granule and capsule formulations. Generally, it is not recommended to take oseltamivir casually when it is uncertain whether the illness is influenza. Medications should be used under the guidance of a physician. Detailed explanations are as follows:

Oseltamivir is an antiviral medication specifically targeting influenza A and influenza B viruses. Its mechanism of action involves inhibiting the neuraminidase on the surface of the influenza virus, preventing newly formed viral particles from being released from host cells, thereby reducing viral replication and spread within the body. It is only effective against influenza virus infections. When it is uncertain whether the illness is influenza, taking oseltamivir blindly may delay accurate diagnosis and targeted treatment, prolonging the illness. Moreover, as a prescription medication, oseltamivir has known adverse effects, potentially causing gastrointestinal discomfort such as nausea and vomiting, as well as headache, dizziness, rash, and other symptoms. Casual use increases unnecessary physical burden and the risk of adverse reactions.

During the period of symptom onset, it is important to rest adequately, drink plenty of water, maintain indoor ventilation, and avoid contact with others to prevent transmission. If symptoms persist or worsen, timely medical consultation and influenza testing are advised for an accurate diagnosis.