Tamiflu
Tamiflu is an antiviral medication that prevents the influenza virus from spreading inside the body. It helps shorten the duration of flu symptoms like fever, cough, sore throat, runny nose, and body aches when taken early in the course of the illness.
Dosage by Body Weight
Treatment must start within 48 hours of flu symptom onset. Standard adult dose is 75 mg twice daily for 5 days for treatment, and 75 mg once daily for prevention. Pediatric doses are determined by body weight.
- Body Weight
- Below 5 kg
- Dose
- 3 mg/kg
- Frequency
- Twice daily for 5 days (treatment)
- Tracking Notes
- Consult pediatrician. Dosage for infants under 1 year is based on body weight.
- Body Weight
- 5-7 kg
- Dose
- 15 mg to 21 mg
- Frequency
- Twice daily for 5 days (treatment)
- Tracking Notes
- Based on 3 mg/kg weight-based dosing. Best administered using 6 mg/mL oral suspension.
- Body Weight
- 8-10 kg
- Dose
- 30 mg
- Frequency
- Twice daily for 5 days (treatment)
- Tracking Notes
- Can use 30 mg capsules or 5 mL of the 6 mg/mL oral suspension.
- Body Weight
- 11-15 kg
- Dose
- 30 mg
- Frequency
- Twice daily for 5 days (treatment)
- Tracking Notes
- Standard dose for children in this weight bracket. Equivalent to 5 mL of oral suspension.
- Body Weight
- 16-20 kg
- Dose
- 45 mg
- Frequency
- Twice daily for 5 days (treatment)
- Tracking Notes
- Can use 45 mg capsules or 7.5 mL of the 6 mg/mL oral suspension.
| Body Weight | Dose | Frequency | Tracking Notes |
|---|---|---|---|
| Below 5 kg | 3 mg/kg | Twice daily for 5 days (treatment) | Consult pediatrician. Dosage for infants under 1 year is based on body weight. |
| 5-7 kg | 15 mg to 21 mg | Twice daily for 5 days (treatment) | Based on 3 mg/kg weight-based dosing. Best administered using 6 mg/mL oral suspension. |
| 8-10 kg | 30 mg | Twice daily for 5 days (treatment) | Can use 30 mg capsules or 5 mL of the 6 mg/mL oral suspension. |
| 11-15 kg | 30 mg | Twice daily for 5 days (treatment) | Standard dose for children in this weight bracket. Equivalent to 5 mL of oral suspension. |
| 16-20 kg | 45 mg | Twice daily for 5 days (treatment) | Can use 45 mg capsules or 7.5 mL of the 6 mg/mL oral suspension. |
Formulation
CapsuleOral Suspension
Purpose
Treatment and prevention of influenza virus infection (types A and B) in patients showing symptoms for 48 hours or less.
Generic Name
Oseltamivir phosphateScheduled Drug
Yes. This medicine should be supplied or used only according to applicable prescription and regulatory requirements.