Taking Tamiflu at the first sign of flu symptoms may reduce the amount of time you’re sick.

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How to Take Tamiflu

Take Tamiflu within 48 hours of flu symptom onset. You have a choice of capsules or liquid. It’s best to take Tamiflu with food—there is less chance of stomach upset if you take it with a light snack or a meal.

If you have already been exposed to the flu, but you don't have any symptoms, you can take Tamiflu for up to 6 weeks to help prevent you from getting sick.

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Flu Treatment

For adults and teens aged 13 years and older

  • Take 75 mg, twice daily, for 5 days.

For children 2 weeks of age to 12 years old

  • Take 1 dose, based on your child's weight, twice daily, for 5 days.
  • Tamiflu is available in capsule and liquid form.
  • See full prescribing information for dosing based on your child's weight.
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Flu Prevention

For adults and teens aged 13 years and older

  • Take 1 dose, once daily, for 10 days or as long as prescribed.

For children from 1 to 12 years old

  • Take 1 dose, based on your child's weight, once daily, for 10 days or as long as prescribed.
  • See full prescribing information for dosing based on your child's weight.
  • Tamiflu is not approved for flu prevention in children less than 1 year of age.
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FAQs

Below are several commonly asked questions and their answers. If you have additional questions not covered here, be sure to ask your doctor.

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What should I do if I miss a dose of Tamiflu?

If you forget to take your medicine, take the missed dose as soon as you remember, unless it is 2 hours or less before your next scheduled dose. Then continue to take Tamiflu at the usual times. Do not take 2 doses at a time to make up for a missed dose. If you miss several doses, tell your doctor and follow the advice given to you.

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Can I take Tamiflu with other medications?

Your doctor or healthcare provider may recommend taking over-the-counter medications to help lessen your symptoms.

As with any medication, be sure to discuss with your doctor any over-the-counter or prescription medicines you are currently taking before beginning Tamiflu therapy.

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How do I store Tamiflu?

Follow these guidelines:

  • Store Tamiflu capsules at room temperature between 68°F to 77°F (20°C to 25°C).
  • Store liquid Tamiflu in the refrigerator for up to 17 days between 36°F to 46°F (2°C to 8°C).
  • Store liquid Tamiflu for up to 10 days at room temperature between 68°F to 77°F (20°C to 25°C).
  • Safely throw away any unused Tamiflu that is out of date or no longer needed.
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How do I administer liquid Tamiflu?

If you are taking liquid Tamiflu or giving it to a loved one, your pharmacist should give you a small measuring cup or dosing syringe, since there is not a dosing device in the carton. Follow your doctor’s instructions on how to take Tamiflu and which dose to take.