What are the side effects of vaccinations?

Hepatitis B specific Immunoglobulin (HBIG) is used as a preventive measure against the Hepatitis B infection after exposure to the virus. These:

  • are ready antibodies which provide immunity to the people exposed to the infection till the vaccine starts to act (i.e. induces the body to produce its own antibodies).
  • takes some time to act.


  • After accidental exposure to HbsAg (Hepatitis B surface Antigen) positive blood or body fluids – accidental needle stick injury, contact by accidental splash, and so on.
  • In newborns whose mother is HbsAg positive.


  • In newborns whose mother is HbsAg positive: 100 – 200 IU, within 12 hours of birthIntramuscularly at a different site from that of the vaccine.
  • In children: 32 – 48 IU/kg body weight, within 7 days (preferably within 48 hoursof exposure.