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Influenza virus vaccine, h1n1, inactivated Side Effects

Applies to influenza virus vaccine, h1n1, inactivated: intramuscular suspension

General

The most common adverse events were soreness at the injection site lasting less than 2 days, and local pain and swelling.[Ref]

Local

Very common (10% or more): Soreness at vaccination site lasting under 2 days (64%)

Frequency not reported: Local pain and swelling[Ref]

Nervous system

Frequency not reported: Headache, Guillain-Barre Syndrome, convulsions, myelitis (including encephalomyelitis and transverse myelitis), facial palsy (Bell's palsy), optic neuritis/neuropathy, brachial neuritis, syncope (shortly after vaccination), dizziness, paresthesia[Ref]

Hypersensitivity

Postmarketing reports: Anaphylaxis, other allergic/hypersensitivity reactions (including urticaria, angioedema)[Ref]

Dermatologic

Postmarketing reports: Stevens-Johnson syndrome, pruritus[Ref]

Respiratory

Postmarketing reports: Dyspnea, pharyngitis, rhinitis[Ref]

Musculoskeletal

Frequency not reported: Myalgia[Ref]

Hematologic

Postmarketing reports: Thrombocytopenia, lymphadenopathy[Ref]

Other

Frequency not reported: Fever, malaise

Postmarketing reports: Pain, asthenia/fatigue, pain in extremities, chest pain[Ref]

Cardiovascular

Postmarketing reports: Vasculitis, vasodilation/flushing[Ref]

References

1. "Product Information. Influenza Virus Vaccine, H1N1, Inactivated (influenza virus vaccine, H1N1, inactivated)." CSL Biotherapies, King of Prussia, PA.

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.