Human Anti-D Immunoglobulins

Anti-D immunoglobulin prevents a rhesus-negative mother from actively forming antibodies to foetal rhesus-positive RBCs that may pass into the maternal circulation during childbirth, abortion, or certain other sensitising events. It is also used in idiopathic thrombocytopenic purpura to prevent excessive bleeding.

One dose 250 mcg should be given IM immediately or as soon as possible after delivery, or abortion of a Rh-positive child, preferably within 48 hours, but not later than 72 hours post-partum.

Following any potentially sensitizing episode (e.g stillbirth, amniocentesis) up to 20 weeks of gestation 125 mcg per episode (after 20 weeks of gestation, 250 mcg) immediately or within 72 hours.

For antenatal prophylaxis 250 mcg should be given in week 28 & also week 34 of pregnancy. The injection must only be given deep intramuscularly. Do not inject intravenously.

Live vaccines should only be admin at least 3 mth after the last dose of immunoglobulin admin.

Splenectomised or rhesus-negative patients, in whom the resultant haemolysis may exacerbate pre-existing anaemia. Hypersensitivity.

Hypersensitivity reactions such as hives, wheezing, urticaria, Pain and tenderness at inj site. Fever, chills, nausea, facial flushing, headache.

Pregnancy Category C. Either studies in animals have revealed adverse effects on the foetus (teratogenic or embryocidal or other) and there are no controlled studies in women or studies in women and animals are not available. Drugs should be given only if the potential benefit justifies the potential risk to the foetus.

For postpartum usage, it is to be used only for maternal admin. Not for rhesus-positive individuals. Patients should be observed for 20 minutes after admin.

Vaccines, Anti-sera & Immunoglobulin

Should be stored in cool and dry place.