Hepatic Function and Fibrinolysis in Patients with Hereditary Angioedema Undergoing Long-Term Treatment with Tranexamic Acid

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Abstract
Prophylactic treatment with antifibrinolytic agents, epsilon‐aminocapriod and tranexamic acid, reduces the incidence and severits of attacks in patients with hereditary angioedema. Long‐term ellectivenessor risk of antifibrinolytic agents has not been established. Sixteen patients needing continuous prophylaxis because of frequency and severity of attacks were treated with tranexamic acid. In four patients this treatment was ineffective and the drug was withdrawn after 2 months. A remission or reduction in the frequency or serverity of attacks was observed in 12 patients treated for a period ranging from 8 to 34 months. Hepatic tests and blood fibrinolytic activity were not influenced by long term oral treatment with tranexamic acid.