About oseltamivir
Neuraminidase inhibitor antiviral
Used for
- Treats influenza A and B
- Prevents influenza after exposure
Usual adult dose
Treatment: 75 mg twice daily for 5 days. Prevention: 75 mg once daily, usually 10 days.
Usual dose in children
Treatment for children aged 1 year or older: weight-based dose twice daily for 5 days. Prevention: weight-based dose once daily, usually 10 days.
Common side effects
- Nausea
- Vomiting
- Headache
- Stomach pain
Important warnings
- Works best when started within 48 hours of symptoms
- Rare serious skin reactions or allergic reactions can occur
- Confusion or unusual behavior has been reported, especially in children
- Dose may need adjustment in kidney impairment
Pregnancy
May be used during pregnancy when treatment or prevention is indicated; influenza itself can be serious.
Breastfeeding
Generally considered compatible with breastfeeding; limited information is available.
Interactions
- Live attenuated intranasal influenza vaccine: timing may need adjustment
- Probenecid can increase oseltamivir exposure
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.