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Audenz Side Effects

Generic name: influenza virus vaccine, h5n1

Medically reviewed by Last updated on Oct 3, 2023.

Note: This document contains side effect information about influenza virus vaccine, h5n1. Some dosage forms listed on this page may not apply to the brand name Audenz.

Applies to influenza virus vaccine, h5n1: intramuscular suspension.

Serious side effects of Audenz

Along with its needed effects, influenza virus vaccine, h5n1 (the active ingredient contained in Audenz) 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, h5n1:

More common

Less common

Other side effects of Audenz

Some side effects of influenza virus vaccine, h5n1 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:

More common

Less common

For Healthcare Professionals

Applies to influenza virus vaccine, h5n1: intramuscular suspension.


The most common adverse events were injection site pain, muscle aches, and irritability.[Ref]


Very common (10% or more): Injection site pain (83%), injection site erythema (33.7%), injection site swelling (28.6%)

Common (1% to 10%): Injection site pruritus, injection site warmth

Uncommon (0.1% to 1%): Injection site reaction[Ref]


Very common (10% or more): Muscle aches (45%), arthralgia (25%), joint pain (17.1%)

Rare (less than 0.1%): Polymyalgia rheumatic, rheumatoid arthritis[Ref]


Very common (10% or more): Irritability/fussiness (82%)[Ref]

Nervous system

Very common (10% or more): Headache (35%), drowsiness (37.8%)

Common (1% to 10%): Dizziness

Rare (less than 0.1%): Convulsion, cerebrovascular accident, cranial nerve IV palsy, facial palsy, radiculitis, febrile convulsion[Ref]


Very common (10% or more): Fatigue (34%), fever (22.4%), shivering (17%)[Ref]


Rare (less than 0.1%): Pulmonary embolism, rheumatoid lung[Ref]


Very common (10% or more): Loss of appetite (29.1%)[Ref]


Very common (10% or more): Gastrointestinal reaction (nausea, vomiting, diarrhea, and/or abdominal pain) (17.2%)

Common (1% to 10%): Gastroenteritis

Rare (less than 0.1%): Celiac disease, Crohn's disease[Ref]


Very common (10% or more): Sweating (11%)

Uncommon (0.1% to 1%): Rash

Rare (less than 0.1%): Psoriasis, erythema nodosum, alopecia[Ref]


Common (1% to 10%): Eye infections

Rare (less than 0.1%): Corneal transplant rejection[Ref]


Rare (less than 0.1%): Autoimmune hepatitis[Ref]


Rare (less than 0.1%): Temporal arteritis[Ref]


Rare (less than 0.1%): Thyroid cancer[Ref]


1. (2022) "Product Information. Influenza Virus Vaccine, H5N1, Inactivated (influenza virus vaccine, H5N1, inactivated)." GlaxoSmithKline

Further information

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

Some side effects may not be reported. You may report them to the FDA.