Injection of antibodies (HRIG) to prevent rabies

Human rabies immune globulin (HRIG) is a shot that is given as soon as possible after a likely exposure to rabies. HRIG contains rabies antibodies that immediately inactivate and control the rabies virus until the vaccine begins to work.

  • HRIG is given only one time, at the beginning of treatment for rabies exposure.
  • The full dose of HRIG is injected into the exposure wound and into the area around the wound. Any remaining dose of HRIG will be injected into a different muscle from the one where the vaccine shot will be given.1
  • HRIG is given only to people who have not received the rabies vaccine before their most recent exposure. People who previously received the vaccine already have some rabies antibodies, and another HRIG injection can make the post-exposure vaccination series less effective.
  • HRIG may cause pain at the site of the shot and a low-grade fever after the shot is given.


Author: Douglas Dana
Amy Fackler, MA
Debby Golonka, MPH
Last Updated: November 28, 2006
Medical Review: Adam Husney, MD - Family Medicine
Christine Hahn, MD - Epidemiology
Andrew Swan, MD, CCFP, FCFP - Family Medicine

© 1995-2008 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
This information does not replace the advice of a doctor. Healthwise disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.

Click here to learn about Healthwise
Click here to learn about Healthwise