What are the side effects of hepatitis A vaccine, inactivated?


In rare cases, hepatitis A vaccine may cause a severe allergic reaction that leads to difficulty breathing, swelling in the face or throat, severe dizziness and hives. If you develop these symptoms after getting hepatitis A vaccine, get medical attention right away and don't get your second shot. Other serious side effects of hepatitis A vaccine may include:

  • unusual bruising or bleeding
  • paralysis of the arms or legs
  • confusion
  • irregular heartbeat 
  • seizures

Hepatitis A vaccine also may cause less severe side effects, including:

  • mild fever
  • tiredness
  • headaches
  • joint pain
  • nausea
  • redness or swelling at the injection site

Other side effects may be possible, so talk to your doctor if any new or unusual symptoms develop after getting a hepatitis A vaccine.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.