This fascinating 3D video shows in detail how standard half-life (SHL) and extended half-life (EHL) treatments work within the clotting cascade. The video shows that some people treat on a regular schedule (called “prophylaxis” or “prophy”) and other people treat only when they have a bleed (called on demand treatment). In the video, you will see how each treatment lasts for a different amount of time in the body. You will also learn about the benefits and limitations of both types of treatment.

The National Bleeding Disorders Foundation would like to thank Sanofi for their generous support and partnership of this project.