Oseltamivir Capsules

  • Medicine name- Fluvir
  • API- Oseltamivir Phosphate 
  • Packaging- 10 capsules 
  • Strength- 30 mg, 45 mg, 75 mg
  • Manufactured By: Hetero Drugs Ltd.
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Fluvir Capsule serves as an influenza neuraminidase inhibitor (NAI) for the treatment of acute, uncomplicated influenza A and B in patients aged 2 weeks and older, symptomatic for up to 48 hours. Additionally, it’s recommended for prophylaxis of influenza A and B in patients aged 1 year and older.

Limitations of Use:

  • Fluvir doesn’t replace the annual influenza vaccination.
  • Consider influenza drug susceptibility patterns and treatment effects before use.
  • Not advised for end-stage renal disease patients not undergoing dialysis.

Dosage and Side Effects

It is recommended to take Oseltamivir orally at around the same time every day, either with or without food. However, taking Oseltamivir with meals may improve tolerability. It is recommended to swallow the entire capsule of oseltamivir phosphate with water. Never take pills that have been chewed, cracked, or opened.

The most frequent side effects include nausea, stomach pain, headaches, vomiting, diarrhea, and difficulty sleeping.

  • Seizures and mental symptoms are possible adverse effects of Oseltamivir.
  • In the event of an infection, pregnant women are advised to safely use oseltamivir phosphate in the United States. For the patient with kidney issues, the dosage of this drug is changed.

Warning and Precautions

  • Patients without dialysis who have end-stage renal illness are not advised to take Oseltamivir 75 mg.
  • Severe skin/hypersensitivity responses, such as toxic epidermal necrolysis, erythema multiforme, and Stevens-Johnson syndrome, should be treated appropriately, and Oseltamivir 45 mg should be stopped right away.
  • Early on in their illness, individuals with influenza who are also taking 30 mg of Oseltamivir—especially those who are pediatric patients—run a significant risk of experiencing confusion or strange behaviour. Patients need to be watched closely for indications of strange conduct.
  • For people with renal issues, a dose adjustment might be necessary.


What is Oseltamivir, and how does it work?

Oseltamivir, commonly known by the brand name Fluvir, is an antiviral medication used to treat and prevent influenza (flu) infections. It belongs to a class of drugs called neuraminidase inhibitors, which work by inhibiting the activity of the neuraminidase enzyme, which is essential for the flu virus to spread and replicate in the body.

When should Oseltamivir be taken?

Oseltamivir is most effective when taken within 48 hours of the onset of flu symptoms. It is used for both treatment (alleviating flu symptoms) and prophylaxis (preventing flu in individuals exposed to someone with the flu). It’s important to follow the prescribed dosage and duration recommended by a healthcare professional.

Are there any side effects associated with Oseltamivir?

Common side effects of Oseltamivir include nausea, vomiting, headache, and occasionally, pain. In rare cases, serious skin reactions or neuropsychiatric events may occur. It’s crucial to discuss any concerns or unusual symptoms with a healthcare provider.

Can Oseltamivir replace the flu vaccine?

No, Oseltamivir is not a substitute for the annual flu vaccine. While it helps treat and prevent the flu, vaccination remains the primary method of preventing influenza and its potential complications.

Who should avoid taking Oseltamivir?

Individuals with known serious hypersensitivity to Oseltamivir or its components should avoid taking this medication. Additionally, it’s important to consult a healthcare professional before taking Oseltamivir if you have certain medical conditions or are taking other medications to avoid potential interactions.