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Centre for Child Health
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Usual adult Dose of Oseltamivir is 75 mg twice daily for 5 days

In Pediatric age group, dose is 3 mg/kg/dose or one can follow the weight based chart as given below

Duration of Oseltamivir Treatment is 5 days

Oseltamivir is also given as Chemoprophylaxis to House hold contacts of the cases who qualify as high risk. (Click for the list)

Duration of Post Exposure Prophylaxis is 10 daysafter last exposure.

Oseltamivir is available as 75 mg Capsules and also as syrup (12mg per ml)

Vaccine vs Chemoprophylaxis-

Influenza vaccine cannot substitute for Oseltamivir Chemoprophylaxis and Oseltamivir prophylaxis should be given to high risk contacts irrespective of Vaccination status.


(5 days)

(10 days)





< 3 months


3 mg/kg/dose twice daily

Not recommended

3-12 months


3 mg/kg/dose twice daily

3 mg/kg/dose once per day

≥ 12 months

≤15 kg

30 mg twice daily

30 mg once per day

16-23 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



75 mg twice daily

75 mg once per day

Posted On: 01/02/2019

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