Influenza virus vaccine, h1n1, inactivated Side Effects
Medically reviewed by Drugs.com. Last updated on Apr 25, 2022.
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]
More about influenza virus vaccine, h1n1, inactivated
- Drug interactions
- Dosage information
- During pregnancy
- Drug class: viral vaccines
- FDA approval history
Patient resources
Related treatment guides
References
1. "Product Information. Influenza Virus Vaccine, H1N1, Inactivated (influenza virus vaccine, H1N1, inactivated)." CSL Biotherapies (2022):
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.
