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Important Instructions for Tamiflu

When and How Do I Take Tamiflu?

Here are some general considerations for when and how to take it:
  • Tamiflu comes in either liquid or capsule form. It is taken once or twice a day, depending on your healthcare provider's instructions. You may take it with or without food. If it upsets your stomach, take it with food.
  • It should be taken at the same time each day to maintain an even level of the medication in your blood.


  • Shake Tamiflu suspension (liquid) thoroughly before each dose. 


  • Make sure that you complete your entire prescription of the medication, even if you start feeling better before it's finished. This will ensure that the infection is completely treated.

Dosing Guidelines

The dosage your healthcare provider recommends will vary, depending on a number of factors, including:
  • Your age
  • Other medical conditions you may have.
As is always the case, do not adjust your dose unless specifically instructed by your healthcare provider to do so.
(Click Tamiflu Dosage for more information.)

Side Effects

(The side effects listed below are not a complete list of possible side effects you may experience with Tamiflu. Your healthcare provider can give you a more complete list.)
As with any medicine, there are possible side effects with Tamiflu. However, not everyone who takes it will experience side effects. In fact, most people tolerate the drug quite well.
For adults, the most common Tamiflu side effects are:
  • Nausea
  • Vomiting.
In children, the most common side effect is vomiting; up to 15 percent of children experience this side effect.
Nausea and vomiting usually happen during the first couple of days of treatment, and are usually mild to moderate. Taking Tamiflu with food may help decrease the chances of developing these side effects.
If you develop an allergic reaction or severe skin rash, stop taking Tamiflu and call your healthcare provider.
(Click Tamiflu Side Effects to learn more.)
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