What should you know about hepatitis A immune globulin?

Immune globulin is a prepared blood product containing antibodies from screened donors. It can offer short-term protection after a possible hepatitis A exposure or in selected situations where a vaccine may not provide the right immediate option. It is not a treatment that clears established hepatitis A, and it does not replace medical assessment. A clinician considers when the exposure occurred, your age and health, immune status, travel plans, and whether vaccination is suitable. Ask about the difference between immune globulin and hepatitis A vaccination, which trains your own immune response.

Contact a healthcare professional promptly and describe the date, type, and setting of the exposure. Do not wait for symptoms before asking about prevention. Tell them about pregnancy, immune conditions, liver disease, allergies, medicines, and previous hepatitis A vaccination. If immune globulin is recommended, follow the appointment and monitoring instructions. Continue careful handwashing and avoid preparing food for others if illness is suspected. Watch for nausea, loss of appetite, feeling generally unwell, dark urine, or yellowing of the eyes.

Seek urgent help for confusion, unusual sleepiness, fainting, repeated vomiting, severe abdominal pain, bleeding, or inability to keep fluids down. Arrange prompt review for dark urine, pale stools, yellow skin or eyes, or worsening weakness. An exposure does not confirm illness, but these symptoms need timely assessment.

Ask whether immune globulin or vaccination is appropriate, how quickly it should be given, and whether both are needed. Ask how long protection may last, what symptoms to monitor, whether close contacts need advice, and whether a liver function test is needed.