Aprotinin injections are used to reduce excessive bleeding during major surgeries, especially those involving the heart, such as open-heart surgeries using an artificial heart-lung machine. This medicine works by inhibiting a group of enzymes known as proteinases, which can be responsible for breaking down proteins and worsening bleeding.
Aprotinin is used in conditions where the body is in a state of overactivity of these enzymes, leading to a significant increase in the risk of bleeding. In some cases involving blood clotting disorders or medical conditions that require careful management of blood loss, this medicine can play an important supportive role.