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RhoGAM is used for: Preventing certain blood problems that may occur during pregnancy or blood transfusion. It may also be used for other conditions as determined by your doctor. RhoGAM is an immunoglobulin (Ig), which contains antibodies to the Rho(D) antigen. Exactly how it works is unknown.
In 1968, a process of medical intervention was invented and a product called RhoGAM or (Brand Rho(D) Immune Globulin (Human), became FDA approved and available for use. When an Rh-negative mother is given an injection of RhoGAM, it protects her immune system from being exposed to the Rh-positive blood. RhoGAM is usually administered twice during your pregnancy, if you choose to get it, once at 28 weeks and again within 72 hours of delivery. RhoGAM is a human blood/plasma product.