Hepatitis A Adult Vaccine: What Are The Possible Side Effects Of Hepatitis A Vaccine


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What are the possible side effects of hepatitis A vaccine?


emt Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Serious side effects from hepatitis A vaccine are very unlikely to occur. Getting hepatitis A is a much more dangerous risk to your health than the small chance that you will have a serious side effect from the hepatitis A vaccine.

emt Call your doctor at once if you have any of these serious side effects:
  • high fever;
  • fast or uneven heartbeats; or
  • behavior changes.

Less serious side effects may be more likely to occur, such as:

  • low fever;
  • headache;
  • dizziness, tired feeling;
  • nausea, vomiting, stomach pain, diarrhea, loss of appetite;
  • joint pain;
  • sore throat; or
  • swelling, redness, or a hard lump where the shot was given.

Side effects other than those listed here may also occur. Contact your doctor about any side effect that seems unusual or that is especially bothersome.

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Last updated: April 25, 2007

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