How many days of taking oseltamivir are effective?
Feb 05, 2025
Source: Cainiu Health
Dr. Ren Yi
Introduction
In general, oseltamivir starts to take effect after 2-3 days of administration. During the 2-3 days following medication, the drug continuously exerts its neuraminidase inhibition effect, effectively controlling the release and spread of the virus within the body. The immune system begins to effectively eliminate virus-infected cells, inflammation gradually subsides, and corresponding flu symptoms are significantly alleviated.
Osetamivir is an antiviral medication used to treat influenza, available in various formulations including capsules and granules. Generally, osetamivir begins to take effect after 2-3 days of administration. The detailed explanation is as follows:
Osetamivir belongs to the class of neuraminidase inhibitors. It works by inhibiting the neuraminidase activity on the surface of the influenza virus, preventing the release of newly formed viral particles from infected cells. This action limits the spread and replication of the virus within the body, effectively combating influenza. Within 2-3 days after starting medication, the drug continuously functions to effectively control the release and spread of the virus in the body. As the viral spread slows down, the damage to various tissues and organs also gradually decreases.
Furthermore, after the human body is infected with the influenza virus, a strong immune response is typically triggered, causing symptoms such as fever, headache, and muscle pain. After taking osetamivir for 2-3 days, the drug rapidly suppresses viral replication and spread. The immune system then begins to effectively eliminate virus-infected cells, and the inflammatory response gradually subsides, leading to significant relief of influenza symptoms.
Patients are advised to strictly follow medical instructions for medication use in daily life, avoiding self-medication or abruptly discontinuing treatment, to ensure both the safety and effectiveness of the therapy.
