Influenza Virus Vaccine, H1n1, Live Side Effects

Applies to influenza virus vaccine, h1n1, live: nasal spray.

Precautions

It is very important that your child return to your doctor's office at the right time for the second dose. Be sure to notify your doctor of any side effects that occur after your child receives this vaccine.

This vaccine should not be given to children and teenagers (2 to 17 years of age) who are also using aspirin or any medicine that contains aspirin (e.g., Aggrenox®, Soma® Compound, Norgesic®, and many cold medicines).

Children under 2 years of age are usually not given the flu vaccine nasal spray. Young children who need the flu vaccine are usually given the flu vaccine injection (a shot).

This vaccine should not be given to pregnant women.

The nasal influenza virus vaccine, H1N1 contains a live virus. Avoid contact with people who are sick or at increased risk of getting the infection after you receive this vaccine. Talk to your doctor about this if you have concerns.

This vaccine may cause a serious type of allergic reaction called anaphylaxis. Anaphylaxis can be life-threatening and requires immediate medical attention. Tell your doctor right away if you have a rash, itching, swelling of the tongue and throat, or trouble breathing after you receive the vaccine.

This vaccine will not treat flu symptoms if you already have the virus. Also, this vaccine may not protect all persons given the vaccine.

Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.

Serious side effects

Along with its needed effects, influenza virus vaccine, h1n1, live may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking influenza virus vaccine, h1n1, live:

Other side effects

Some side effects of influenza virus vaccine, h1n1, live may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

For healthcare professionals

Applies to influenza virus vaccine, h1n1, live: nasal spray.

General adverse events

General side effects have included tiredness/weakness and chills.^[Ref]

Gastrointestinal

Gastrointestinal side effects have included nausea, vomiting, and diarrhea.^[Ref]

Dermatologic

Dermatologic side effects have included rash.^[Ref]

Respiratory

Respiratory side effects have included nasal congestion, runny nose, sore throat, and cough.^[Ref]

Hypersensitivity

Hypersensitivity side effects have included anaphylactic reactions, facial edema and urticaria.^[Ref]

Musculoskeletal

Musculoskeletal side effects have included muscle aches.^[Ref]

Nervous system

Nervous system side effects have included headache, Guillain-Barre syndrome and Bell's Palsy.^[Ref]

See also:

Further information

Influenza virus vaccine, h1n1, live side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.

Medical Disclaimer