Berotralstat is a selective inhibitor of plasma kallikrein used in the prophylaxis of attacks of hereditary angioedema (HAE).[L26661] It works by blocking the enzymatic activity of plasma kallikrein in releasing bradykinin, the major biologic peptide that promotes swelling and pain associated with attacks of HAE.[A225166] Berotralstat is strictly used to prevent, but not treat, these attacks.[L26656] Developed by BioCryst Pharmaceuticals, berotralstat is marketed under the name Orladeyo as oral capsules.[A225106] Berotralstat was first approved by the FDA on December 3, 2020, as the first once-daily oral therapy to prevent angioedema attacks of HAE in adults and pediatric patients 12 years and older.[L26661] Berotralstat was approved by the European Commission on April 30, 2021 [L41965] and by Health Canada on June 06, 2022.[L41960] In December 2025, the FDA expanded Berotralstat pediatric use with approval of an oral pellet formulation for prophylaxis in children with HAE aged 2 and older.[L54793,L54798]
Berotralstat is indicated for prophylaxis of attacks of hereditary angioedema (HAE) in adults and pediatric patients 2 years and older. It is not used for the treatment of acute HAE attacks.[L26661,L41965,L41990,L54793,L54798]
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison
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