Xprab 150 IU injection is a rabies immunoglobulin used to provide immediate, passive immunity to individuals exposed to the rabies virus, typically through an animal bite. It is administered as part of post-exposure prophylaxis (PEP) to prevent the onset of rabies, a fatal viral disease. The injection contains antibodies that neutralize the virus, offering protection while the body generates its immune response following a rabies vaccine. Xprab 150 IU is given directly into and around the wound site, as well as intramuscularly, under medical supervision. It is a critical treatment in emergency situations where there is a high risk of rabies infection, helping to save lives by preventing the virus from spreading in the body.