Mechanism of action of Oseltamivir and Zanamivir is:-
DNA polymerase inhibition
Inhibition of viral mRNA
Blocking viral uncoating
Neuraminidase inhibition
Oseltamivir acts by inhibiting influenza virus neuraminidase enzyme which is needed for release of progeny virions from the infected cell. Other neuraminidase inhibitor includes Zanamivir & Peramivir. These are used against Flu Virus (Bird flu/swine Flu). Drugs like Amantadine and Rimantadine are viral uncoating inhibitors. Route of administration of neuraminidase inhibitors in influenza: Zanamivir: Inhalational Oseltamivir: Oral Peramivir: Intravenous
Anti-Viral Drugs