shanvac-b is an injection that is used in preventing hepatitis b infections. it works by developing the antibodies that fight against the hepatitis b virus and prevent causing infections.
this injection may cause side effects such as fever, mild crankiness, loss of appetite, skin rash, body pain, flushing, respiratory symptoms like runny nose, wheezing, or tightness in the throat, injection site reactions like tenderness, soreness, redness, or swelling.
generally, the shanvac-b is given as a series of three doses over six months. but in neonates born to hepatitis b positive mothers may require another extra dose. inform your doctor if you have any blood tests as this vaccine may raise the level of some antibodies in your blood for several weeks.