Oseltamivir 

Drug class: Neuraminidase inhibitors

• A potent and selective inhibitor of the neuraminidase glycoprotein essential for replication of influenza A and B viruses. 
• Well tolerated orally active neuraminidase inhibitor.

• Represents a useful therapeutic alternative to, 
  • • Zanamivir (especially in patients who prefer oral administration or who have an underlying respiratory disorder) and 
    • The M2 inhibitors amantadine and rimantadine (because of their broader spectrum of anti-influenza activity and a lower likelihood of resistance) in patients with influenza.
• Ideal treatment for immunocompromised patients, to prevent secondary complications.