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Nasal Flu Vaccine for Adults

Medically reviewed by Last updated on Jun 5, 2024.

What is the nasal flu vaccine?

This vaccine is sprayed into your nose to help prevent influenza (the flu). The flu is caused by a virus. The virus spreads through direct contact with someone who has the flu. For example, a person with the virus on his or her hands can spread it by shaking hands with someone. Several types of viruses cause the flu. The viruses change over time, so new vaccines are made each year. The vaccine begins to protect you about 2 weeks after you get it. Get the vaccine as soon as recommended each year, usually starting in September or October.

Nasal Flu Vaccine (Adult)

What should I tell my doctor before I get the nasal flu vaccine?

Who should not get the nasal flu vaccine or should wait to get it?

What are the risks of the nasal flu vaccine?

The vaccine may cause mild symptoms, such as a fever, headache, and muscle aches. You may still get the flu after you receive the vaccine. You may have an allergic reaction to the vaccine. This can be life-threatening.

Call your local emergency number (911 in the US) if:

When should I seek immediate care?

When should I call my doctor?

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.