Antihemophilic Factor is also known as Factor VIII, blood clotting factor VIII, AHF, or coagulation factor VIII. Essentially, all of these terms refer to a protein that plays a crucial role in blood clotting. In individuals with a deficiency of Antihemophilic Factor, they may experience spontaneous bleeds or excessive bleeding after injury. Some other commonly used synonyms include HEMOFIL M, factor VIII activity, Koate, Kogenate, Monarc-M, Recombinate, Xyntha, and Wilate. These terms can be used to describe different types of Antihemophilic Factor products, brands, or assays used to measure the activity of the protein in the blood. Ultimately, Antihemophilic Factor and its synonyms all relate to the critical role of maintaining normal blood clotting, particularly in individuals with bleeding disorders.