List of products in the National Drug Code with proprietary name . This medication is used to help control bleeding due to a condition where your blood does not clot the way it normally should (fibrinolysis). This may cause serious bleeding after certain surgeries or in certain conditions (such as bleeding disorders, liver disease, cancer). Aminocaproic acid works by helping your blood clot normally. It belongs to a class of drugs known as antifibrinolytics.