Zanamivir
Written By Dr. Anuj Saini
Reviewed By Dr. Rajeev SharmaLast updated 25 Nov 2025 | 09:34 AM (UTC)
Zanamivir Uses
Zanamivir is used in the treatment and prevention of influenza (flu). It is also used in the treatment of H1N1 influenza (Swine flu).
How Zanamivir works
Zanamivir is an anti influenza (virus) medicine. It contains neuraminidase, which prevent the growth of influenza viruses. This is how it helps to treat influenza flu.
Common side effects of Zanamivir
Chills, Dizziness, Nausea, Sinus inflammation, Diarrhea, Headache, Ear, nose, and throat (ENT) infections
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Expert advice for Zanamivir
- Zanamivir helps in the treatment and prevention of flu.
- It is for inhalation only. Do not take it by mouth.
- Do not skip any doses and finish the full course of treatment even if you feel better. Stopping it early may make the symptoms of flu to come back.
- Take it as soon as possible, ideally within two days of starting of flu symptoms.
- It is not a substitute for flu vaccination. You might be prescribed both by your doctor.
Frequently asked questions for Zanamivir
No. Zanamivir is not over the counter drug, one needs doctor's prescription to buy it
Zanamivir is a powdered medicine which can be inhaled through mouth using the inhaler device.