6-Aminocaproic acid is primarily used in the medical field as an antifibrinolytic agent. It helps to reduce bleeding by preventing the breakdown of blood clots. This makes it particularly useful in surgeries, especially those involving the heart, liver, or prostate, where excessive bleeding can be a significant risk. It is also employed in the treatment of conditions like hemophilia, where patients have a tendency to bleed excessively. Additionally, it is used in cases of traumatic bleeding, such as after accidents or injuries, to control hemorrhage. Outside of medicine, it finds application in biochemical research as a reagent for studying enzyme inhibition and protein interactions.