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. 2010 Jan-Feb;30(1):1–10. doi: 10.4103/0256-4947.59365

Table 8.

Antiviral treatment and chemoprophylaxis of 2009 H1N1 influenza.

Medication/Age groups Treatment (5 days) Chemoprophylaxis (10 days)
Oseltamivir

Adults 75 mg twice daily 75 mg once per day

Children (age≥12 months), weight ≤15 kg 30 mg twice daily 30 mg once per day
15-23 kg 45 mg twice daily 45 mg once per day
24-40 kg 60 mg twice daily 60 mg once per day
>40 kg 75 mg twice daily 75 mg once per day

Children Age 3 months to <12 months 3 mg/kg/dose twice daily 3 mg/kg/dose once per day
Children 0-<3 months 3 mg/kg/dose twice daily Not recommended, unless situation judged critical (limited data)

Zanamivir

Adults Two 5-mg inhalations (10 mg total) twice daily Two 5-mg inhalations (10 mg total) once daily

Children ≥7 years or older for treatment; ≥5 years for chemoprophylaxis Two 5-mg inhalations (10 mg total) twice daily Two 5-mg inhalations (10 mg total) once daily