Hemophilia is an inherited disease that prevents the blood from clotting properly.^1,2 People with hemophilia have a deficiency of a blood protein, also called a “clotting factor,” that is necessary to clot the blood and stop bleeding.³

Curious about Wyeth products available to treat hemophilia? Interested in how hemophilia is diagnosed? Concerned about the safety of recombinant clotting factors? Find answers to the most frequently asked questions.