About oseltamivi r as phosphate
Neuraminidase inhibitor antiviral
Used for
- Treatment of influenza A and B
- Prevention of influenza after exposure or during outbreaks
Usual adult dose
Treatment: 75 mg twice daily for 5 days. Prevention: 75 mg once daily, typically 10 days after exposure.
Usual dose in children
Treatment and prevention doses depend on age and weight; used from 2 weeks of age with medical supervision.
Common side effects
- Nausea or vomiting
- Headache
- Stomach pain
- Rarely, serious skin reactions or unusual behavior
Important warnings
- Works best when started within 48 hours of symptoms or exposure.
- Does not replace annual influenza vaccination.
- Dose adjustment may be needed with kidney impairment.
- Seek urgent care for severe allergic reactions or serious skin symptoms.
Pregnancy
May be used during pregnancy when treatment is needed; influenza itself can cause serious complications.
Breastfeeding
Small amounts may pass into breast milk; available evidence generally supports use when needed.
Interactions
- Live attenuated nasal influenza vaccine: avoid around treatment; ask a clinician about timing.
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 It may be incomplete or out of date.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.