What is the mechanism of action of Oseltamivir?
Feb 05, 2025
Source: Cainiu Health
Dr. Yang Ziqi
Introduction
When newly synthesized influenza virus particles are released from the surface of infected host cells, neuraminidase can catalyze the hydrolysis of N-acetylneuraminic acid residues at the terminal ends of the surface glycoproteins of host cells. This cuts off the connections between the influenza virus and the infected cells, allowing the influenza virus to be efficiently released from the host cells and subsequently infect other healthy cells.
Oseltamivir is commonly available in various dosage forms such as granules, capsules, and suspensions. Its mechanism of action primarily involves inhibiting the neuraminidase activity of the influenza virus, thereby exerting anti-influenza viral effects. A detailed explanation is as follows:
After infecting human cells, the influenza virus replicates and releases from the infected cells to further infect more cells. Neuraminidase is a glycoprotein enzyme found on the surface of the influenza virus that promotes viral replication and spread.
When newly synthesized influenza virus particles are released from the surface of infected host cells, neuraminidase catalyzes the hydrolysis of terminal N-acetylneuraminic acid residues on the surface glycoproteins of host cells. This severs the connections between the influenza virus and the infected cells, allowing the virus to be efficiently released from host cells and subsequently infect other healthy cells.
By inhibiting neuraminidase activity, oseltamivir prevents the release of the influenza virus from infected cells, reduces viral spread, and suppresses further infection by the influenza virus.
If oseltamivir is required for the treatment of influenza, it is recommended to use it under the guidance of a physician. In daily life, maintaining a healthy lifestyle with adequate sleep, improved diet, and proper physical conditioning is important for maintaining overall health.
