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Learn MoreWinRho® is a medicine used to treat immune thrombocytopenia (ITP). ITP is an autoimmune disorder that causes low numbers of platelets. Platelets are blood cells that help stop bleeding.
In people with ITP, platelets are coated in antibodies. The antibodies cause the spleen to attack and destroy the platelets.
WinRho® has antibodies that bind to red blood cells of people with a positive blood type. The spleen then destroys red blood cells instead of platelets so more platelets stay in the blood. When this happens, your child’s platelet count goes up.
Destroying red blood cells is generally not harmful. Your child’s body naturally makes more. WinRho® is not used in patients who have anemia or who are at risk for having a low red blood cell count.
WinRho® is given through an IV into a vein. This takes 3 to 5 minutes. A member of your care team will watch your child for any side effects for 2 hours after giving the WinRho®.
Possible side effects of WinRho® include:
To decrease the side effects of WinRho® your child’s doctor will give other medicines, such as acetaminophen (Tylenol®) or diphenhydramine (Benadryl®) before giving WinRho®. Your child’s doctor will also give medicines to take at home to decrease side effects.
If you have questions, talk to your child’s doctor or nurse.
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Reviewed: September 2022