A virus that attacks the liver and causes inflammation of the liver causes Hepatitis B. Long term infection can lead to liver disease such as cancer and cirrhosis. Symptoms are not always present but individuals infected with the virus can spread it to others.

Human hepatitis B immunoglobulin contains antibodies to the hepatitis B virus. It can prevent hepatitis B infection from developing in a person who has been exposed to the hepatitis B virus by contact with blood or other material (for example needle stick injury, sexual exposure) known or suspected to be infected with the virus. It is also given to babies born to mothers with hepatitis B infection. The hepatitis B immunoglobulin is normally used in combination with the vaccine.

Hepatitis B immunoglobulin can only be obtained with a doctor's prescription. Discuss with your doctor why it has been prescribed for you and the benefits and risks of this medicine.