Relenza was approved by the FDA to treat people with uncomplicated influenza. Relenza is designed for people age 5 years and older whose flu symptoms began less than two days before taking Relenza. Relenza is an anti-viral medication that can cause lung injuries like wheezing, worsening lung function and difficulty breathing.
What are some important things I should know about Relenza?
Relenza comes in powder form and is inhaled twice per day for five days. It should be started as soon as flu symptoms begin, and it should not be started after the second day of flu symptoms.
Relenza is for people age 5 years and older who have uncomplicated influenza. People who should not use Relenza include those who have underlying respiratory diseases like asthma and chronic obstructive pulmonary disease. Relenza should not be used as a substitute for annual influenza vaccinations.
Relenza should only be used in pregnant and nursing women if the benefits clearly outweigh the risks. The risks could include injury or death to an unborn or nursing baby.
Relenza can cause bronchospasm, or wheezing, that can be fatal. People with underlying respiratory illnesses should not use Relenza. Relenza can also put people at risk of serious allergic reactions and can react with other medication, especially the influenza vaccination.
Contact your doctor immediately if you become pregnant or plan to become pregnant. Relenza may cause injury to unborn or nursing babies. Contact your doctor immediately if you experience:
- difficulty breathing
- wheezing
- coughing
- swelling of the face, mouth and tongue
- runny nose
- congestion
- rash
- hives