View TAMIFLU savings options available to you including Manufacturer Coupons, Rx Advantage Savings Card, Canadian Prescription Savings or TAMIFLU Patient Assistance Program.

Programs are suitable for individuals who want to buy TAMIFLU without insurance, with insurance or for those who are underinsured. You can pay as little as $0 per fill.*

Manufactured by Genentech

*Applicable to Drug Coupons & Patient Assistance Programs

This content is intended for US audiences only

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Jamie Winn NowPatientGreen tick
Updated on 26 Apr 2024

Learn more about TAMIFLU

What is TAMIFLU?

What is TAMIFLU?

TAMIFLU is the brand name for oseltamivir and is available as an oral capsule and suspension.

What dosages is TAMIFLU available in?

What dosages is TAMIFLU available in?

TAMIFLU is available as a 30 mg, 45 mg, and 75 mg oral capsule and a 6 mg/ml oral suspension.

What is TAMIFLU used for?

What is TAMIFLU used for?

TAMIFLU is an antiviral that is used to treat:

  • Flu treatment (flu types A and B) in people 2 weeks of age and older
  • Flu prevention (flu types A and B) in people 1 year of age and older
How does TAMIFLU work?

How does TAMIFLU work?

TAMIFLU is an antiviral medication. More specifically, it’s a neuraminidase inhibitor (NAI). Neuraminidase is a protein that’s found on the surface of the influenza (flu) virus. It plays a role in helping the virus spread inside someone who’s infected. By blocking this protein, TAMIFLU prevents the flu virus from releasing copies of itself throughout your body and making you feel sicker.

How do I take TAMIFLU?

How do I take TAMIFLU?

For flu treatment Adults and children 13 years of age and older: The typical dose is 75 mg by mouth twice daily for 5 days. Children ages 1 to 12 years old: The dose is based on your child’s body weight. The typical dose ranges from 30 mg to 75 mg by mouth twice daily for 5 days. Children ages 2 weeks to 1 year old: The dose is based on your child’s body weight. The typical dose is 3 mg/kg of body weight by mouth twice daily for 5 days. Your child’s provider will calculate the dose for you. For flu prevention Adults and children 13 years of age and older: The typical dose is 75 mg by mouth once daily for at least 10 days but not longer than 6 weeks.
Children ages 1 year to 12 years old: The dose is based on your child’s body weight. The typical dose ranges from 30 mg to 75 mg by mouth once daily for at least 10 days but not longer than 6 weeks. Your dose might differ if you have kidney problems (you might need to take the medication less often).

Is it safe for me to take TAMIFLU?

Is it safe for me to take TAMIFLU?

TAMIFLU is a safe and effective treatment when used for FDA licensed indications. However, like all medications, they may give you unwanted side effects. You should always discuss potential side effects with your physician to ensure the medication is suitable and right for you.

TAMIFLU Common Side Effects

TAMIFLU Common Side Effects

Common side effects of TAMIFLU:

  • Nausea
  • Vomiting
  • Headache
TAMIFLU Serious Side Effects

TAMIFLU Serious Side Effects

Serious side effects are rare with TAMIFLU. Serious Side Effects
Contact your healthcare provider immediately if you experience any of the following.

  • Allergic reaction: trouble breathing; swelling of your face, eyes, lips, tongue, or throat
  • Serious skin reactions (Stevens-Johnson syndrome): skin rash, hives, blistering or peeling skin
Effects of other drugs, drug classes and over-the-counter products on TAMIFLU

Effects of other drugs, drug classes and over-the-counter products on TAMIFLU

The following medications may interact with TAMIFLU:

  • Live attenuated influenza vaccine, intranasal:
  • Do not administer until 48 hours following cessation of TAMIFLU
  • Do not administer TAMIFLU until 2 weeks following administration of
  • the live attenuated influenza vaccine, unless medically indicated
Who makes TAMIFLU?

Who makes TAMIFLU?


Is TAMIFLU safe in pregnancy?

Is TAMIFLU safe in pregnancy?

There are no adequate and well-controlled studies of TAMIFLU in pregnant women. It is unknown whether TAMIFLU can cause fetal harm when administered to a pregnant woman. TAMIFLU should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.


What to do if you missed your TAMIFLU dose

The FDA's medical product safety reporting program for health professionals, patients and consumers.

Learn more about reporting side effects
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Medical Disclaimer

NowPatient has taken all reasonable steps to ensure that all material is factually accurate, complete, and current. However, the knowledge and experience of a qualified healthcare professional should always be sought after instead of using the information on this page. Before taking any drug, you should always speak to your doctor or another qualified healthcare provider.

The information provided here about medications is subject to change and is not meant to include all uses, precautions, warnings, directions, drug interactions, allergic reactions, or negative effects. The absence of warnings or other information for a particular medication does not imply that the medication or medication combination is appropriate for all patients or for all possible purposes.

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