What are the side effects of the hepatitis A and B combination vaccine?

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In rare cases the hepatitis A and B combination vaccine may cause a severe allergic reaction that leads to difficulty breathing, swelling in the face or throat and hives. If you develop these symptoms after receiving the hepatitis A and B combination vaccine, get immediate medical attention. Other serious side effects of a the hepatitis A and B combination vaccine may include:

  • irregular heartbeat
  • unusual bruising or bleeding
  • high fever
  • muscle tingling or paralysis
  • severe headaches
  • seizures

The hepatitis A and B combination vaccine may cause less severe side effects, including:

  • mild fever
  • tiredness
  • headaches
  • nausea
  • diarrhea
  • 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 the hepatitis A and B combination 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.