SELTAVIR 75 CAPSULES
OSELTUMUR PHOSPHATE
What it does
Oseltumur is a medication that helps treat certain viral infections.
Commonly used for: viral infections, influenza (flu)
Read more in plain English ↓Plain-language summary for general understanding - not medical advice. Always follow your pharmacist/doctor.
Ask about this medicine
Answers come only from this medicine's registration record, BNF monograph and interaction data - not medical advice.
Medicine sourcing is available in Kenya only. We don't sell or dispense medicines - licensed pharmacies do.
Sourcing - Kenya onlyRegistration & product details
Source: Food and Drugs Authority · fetched 2026-05-12 08:01:04 · updated 2026-10-20 04:00:08
About this medicine
Oseltumur is a medication that helps treat certain viral infections.
What it treats
- viral infections
- influenza (flu)
How it works
It works by stopping the virus from spreading in the body.
Who it's for
This medicine is for people who have been diagnosed with specific viral infections.
AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.
Clinical monograph: oseltumur
Oseltamivir is an antiviral medication used primarily for the treatment and prevention of influenza A and B viruses. It belongs to the class of neuraminidase inhibitors, which function by impeding the viral replication process.
Indications
- Treatment of acute uncomplicated influenza in patients aged 1 year and older
- Prophylaxis against influenza in patients aged 1 year and older during outbreaks
Dosage
Children: Refer to the BNF for Children for specific dosing recommendations.
Adults: Refer to the BNF for specific dosing recommendations.
Mechanism of action
Oseltamivir is a prodrug that is converted to its active form, oseltamivir carboxylate, in the liver. The active metabolite inhibits the neuraminidase enzyme on the viral surface, preventing the release of newly formed viral particles from infected host cells. This inhibition reduces the ability of the virus to spread within the respiratory tract, thus enhancing the host's immune response.
Pharmacodynamics
Oseltamivir exhibits a selective inhibitory effect on the neuraminidase enzyme, which is crucial for the viral life cycle of influenza viruses. By blocking this enzyme, oseltamivir decreases the viral load, alleviates symptoms, and shortens the duration of influenza illness. It is most effective when administered within the first 48 hours of symptom onset.
Pharmacokinetics
Oseltamivir is orally administered and has a bioavailability of approximately 80%. It undergoes hepatic metabolism to its active form and is primarily eliminated by renal excretion. The elimination half-life of the active metabolite is about 6 to 10 hours. Dosage adjustments may be necessary in patients with renal impairment due to decreased clearance.
Adverse effects
- Nausea
- Vomiting
- Diarrhea
- Abdominal pain
- Dizziness
- Headache
Interactions
- Potential interaction with live attenuated influenza vaccine
- May interact with other antiviral medications
Precautions
- Use with caution in individuals with renal impairment
- Monitor for signs of hypersensitivity reactions
Pregnancy
Oseltamivir is classified as pregnancy category C. It should only be used if the potential benefit justifies the potential risk to the fetus.
Breast-feeding
Oseltamivir is excreted in breast milk. Caution is advised if administered to nursing mothers.
Storage
Store at room temperature, away from moisture and heat. Protect from light.
Formulations
- Capsules
- Powder for oral suspension
AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.