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Rhophylac® is indicated for suppression of rhesus (Rh) isoimmunization in:
- Pregnancy and obstetric conditions in non-sensitized, Rho(D)-negative women with an Rh-incompatible
pregnancy, including routine antepartum and postpartum Rh prophylaxis and Rh
prophylaxis in cases of obstetric complications, invasive procedures during
pregnancy, or obstetric manipulative procedures.
- Incompatible transfusions in Rho(D)-negative individuals transfused with blood components containing Rho(D)-positive red blood cells.
For suppression of Rh isoimmunization, Rhophylac® can be administered IM or IV.
Rhophylac® is indicated to raise platelet counts in Rho(D)-positive, non-splenectomized adult patients with chronic immune thrombocytopenic purpura (ITP). For the treatment of ITP, Rhophylac® must be administered IV.
Rhophylac® is contraindicated in individuals with known anaphylactic or severe systemic reaction to human immune globulin products.
Allergic or hypersensitivity reactions may occur with Rhophylac®; early signs of hypersensitivity include generalized urticaria, chest tightness, wheezing, hypotension, and anaphylaxis. Individuals with selective IgA deficiency can develop antibodies to IgA and may develop severe hypersensitivity and anaphylactic reactions. For these individuals, weigh the expected benefits of treatment against the potential risks.
Rhophylac® is derived from human plasma. As with all plasma-derived products, the risk of transmission of infectious agents, including viruses and, theoretically, the Creutzfeldt-Jakob disease (CJD) agent, cannot be completely eliminated.
Suppression of Rh Isoimmunization: For postpartum use following an Rh-incompatible pregnancy, Rhophylac® should not be given to the newborn infant.
The most common adverse reactions in the suppression of Rh isoimmunization with Rhophylac® are nausea, dizziness, headache, injection-site pain, and malaise.
Immune Thrombocytopenic Purpura: ITP patients being treated with Rhophylac® should be monitored for signs and symptoms of intravascular hemolysis, including back pain, shaking, chills, fever, and hemoglobinuria. Potentially serious complications of intravascular hemolysis include clinically compromising anemia, acute renal insufficiency, and, very rarely, disseminated intravascular coagulation, and death.
In patients with preexisting anemia, weigh the benefits of Rhophylac® against the potential risk of increasing the severity of the anemia.
The most common adverse reactions in ITP treatment with Rhophylac® are chills, fever, increased bilirubin, and headache.
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