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Relenza Medication - Uses & Side Effects

Relenza is an antiviral drug that hastens recovery from the flu. It work by interfering with the spread of virus particles inside the respiratory tract.

Relenza Dosage

  • The usual starting dose is 2 inhalations twice a day, approximately 12 hours apart, for 5 days.
  • Safety and efficacy have not been established for children under 7.

Uses of Relenza

  • It is used to hastens recovery from the flu.
  • It may also be used to treats other medical conditions those are listed in this medication guide.

Side Effects of Relenza

Before taken Relenza medicine, you should discuss the side effects with your doctor. If any develop or change in intensity, then you should inform your doctor as soon as possible. Because only your doctor can determine if it is safe for you to continue taking Relenza. Side effects may include:

  • Abdominal pain
  • Bronchitis
  • Cough
  • Diarrhea
  • Ear infection
  • Headache
  • Fatigue
  • Hives
  • Joint pain
  • Muscle ache
  • Nasal infection
  • Sinus inflammation

Warnings and precautions before taking Relenza:

  • If you are taking Relenza, then it may cause serious and potentially fatal breathing problems, especially in people who have asthma or other chronic pulmonary disorders. If you develop breathing difficulties such as wheezing or shortness of breath, then you should stop taking Relenza.
  • You should be used it with extra caution if you have any kind of serious health problem in addition to the flu.
  • Relenza can also cause serious allergic reactions. If you experience swelling of the face, tongue, or throat, or develop a skin rash, then you should also stop taking Relenza.

Drug Interaction :-

Interactions are considered unlikely. But if you are taking Relenza with certain other drugs, then the effects of either could be increased, decreased, or altered. So it is especially important to check with your doctor before combining Relenza with other drugs.


After taken Relenza if you feel that overdose is suspected, then you should contact with your doctor immediately. Because it may lead to another serious effect. Substantially increased doses of Relenza have caused no increase in adverse reactions.

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