Hepatitis B immune globulin and Tysabri

• Generic Name: hepatitis b immune globulin
• Dosage Forms: n.a.
• Other Brand Names: HepaGam B, HepaGam B NovaPlus, Hyperhep B, Nabi-HB, H-BIG, Hyperhep, Bayhep B, Nabi-HB NovaPlus

Hepatitis B immune globulin is made from human plasma containing proteins that protect against the type B form of hepatitis (inflammation of the liver).

Hepatitis B immune globulin is used to prevent hepatitis B in people receiving a liver transplant, and in babies born to mothers infected with hepatitis B. It is also used to prevent hepatitis B in people who have been exposed to hepatitis B through contaminated blood products, sexual contact with an infected person, or living in a home with an infected person.

Hepatitis B immune globulin is not a vaccine. Therefore it will not provide long-term protection from hepatitis B. For long-term protection you must receive a hepatitis B vaccine such as Engerix-B, Recombivax HB, or Twinrix.

Hepatitis B immune globulin may also be used for purposes not listed in this medication guide.

• Generic Name: natalizumab
• Dosage Forms: injection
• Other Brand Names: Tysabri

Tysabri (natalizumab) is a monoclonal antibody that affects the actions of the body's immune system. Monoclonal antibodies are made to target and destroy only certain cells in the body. This may help to protect healthy cells from damage.

Tysabri is used to treat relapsing forms of multiple sclerosis.

Tysabri is also used to treat moderate to severe Crohn's disease in adults. It is usually given after other medicines have been tried without success.