What are the side effects of HepaGam B?


In rare cases, HepaGam B 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 getting a HepaGam B injection, get medical attention right away. Other serious side effects of HepaGam B may include:

  • increased blood pressure
  • seizures
  • severe headaches
  • stomach pain

HepaGam B may cause less severe side effects, including:

  • tiredness
  • dizziness
  • headaches
  • nausea
  • vomiting
  • chills
  • fever
  • back pain
  • pain 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 HepaGam B injection.

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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.