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Hepatitis A Vaccine

Drug Class: Commonly Known As: Category:
Hepatitis A, Avaxim, Havrix, Vaqta, Twinrix

Hepatitis A Vaccine - Side Effects, Precautions, and Contraindications

What side effects can Hepatitis A Vaccine cause?

Common side effects include:

  • Some people may feel faint after the vaccination
    • Sit for 15 minutes to avoid fainting
  • Pain, redness and swelling at the injection site
    • You may place a cold compress over the affected area for relief
    • You may take paracetamol for pain relief
  • Headache and fever
    • You may take paracetamol to treat the headache or fever
  • Fatigue, general feeling of discomfort (malaise), irritability
    • These side effects usually go away on its own
  • Loss of appetite, stomach discomfort e.g. nausea and vomiting, diarrhea
    • These side effects usually go away on its own

Please see a doctor if these side effects do not get better or become worse.

Rare but serious side effects include: 

The symptoms of a drug allergy include one or more of the following:

  • Swollen face/eyes/lips/tongue
  • Difficulty in breathing
  • Itchy skin rashes over your whole body

If you experience any of these symptoms, you should inform your healthcare professional immediately.

Before taking Hepatitis A Vaccine, what precautions must I follow?

Inform your healthcare professional if:

  • You are allergic to this vaccine or any of the other ingredients of this vaccine, including neomycin antibiotic
  • You are pregnant, planning to become pregnant, or breastfeeding
  • You are taking any other medications
  • You are currently not feeling well and having a fever   
  • You have a history of bleeding disorders
  • You have a weak immune system due to an illness such as Human Immunodeficiency Virus (HIV) infection or cancer
  • You are currently on medications which weakens your immune system (e.g. high dose steroids)

What food or medicine must I avoid when I take Hepatitis A Vaccine?

Hepatitis A Vaccine - Additional Information

  • Updated on Thursday, September 30, 2021
  • Article contributed by PSS National Medication Information Workgroup PSS National Medication Information Workgroup

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