Slow IM Following transfusion of Rh-incompatible blood 500-1,250 IU per 10 mL of transfused blood over a period of several days.
Postpartum prophylaxis 1,000-1,500 IU given to the mother as soon as possible after delivery but not later than 72 hr postpartum.
Antepartum & postpartum prophylaxis Initially 1,000-1,500 IU in the 28th wk of pregnancy, then same dose w/in 72 hr after delivery if newborn is Rh(D) +ve.
After interruption of pregnancy, extrauterine pregnancy or hydatidiform mole: Before the 12th wk of pregnancy 600-750 IU.
After the 12th wk of pregnancy or after amniocentesis or chorion biopsy 1,250-1,500 IU. Doses are to be given w/in 72 hr of event or intervention.