IT CONTAINS SPECIFIC ANTIBODIES AGAINST THE ERYTHROCYTE D-ANTIGEN AND SMALL QUANTITIES OF OTHER BLOOD GROUP ANTIBODIES, SUCH AS ANTI-C, E, A AND ANTI-B. ANTI-D IMMUNOGLOBULIN IS USED TO PREVENT A RHESUS-NEGATIVE MOTHER ACTIVELY FORMING ANTIBODIES TO FETAL RHESUS-POSITIVE RED BLOOD CELLS THAT MAY PASS INTO THE METERNAL CIRCULATION DURING CHILDBIRTH, ABORTION, OR CERTAIN OTHER SENSITISING EVENTS.