Tranexamic acid (TXA) is a medication used to treat or prevent excessive blood loss from major trauma, postpartum bleeding, surgery, tooth removal, nosebleeds. Tranexamic acid is used to prevent and treat blood loss in a variety of situations, such as dental procedures for hemophiliacs, heavy menstrual bleeding, and surgeries with high risk of blood loss. It is also used for hereditary angioedema. It is taken either by mouth or injection into a vein. 