REVIEW Aminocaproic acid is used to treat excessive postoperative bleeding. It is a derivative and analogue of the amino acid lysine, which makes it an effective inhibitor for enzymes that bind that particular residue. Such enzymes include proteolytic enzymes like plasmin, the enzyme responsible for fibrinolysis.
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Banerjee A, Stoica C, Walia A (2011). Acute hyperkalemia as a complication of intravenous therapy with epsilon-aminocaproic acid. J Clin Anesth. 23(7):565-8. PMID 22050802.