<prompt> DOC for acute attack of Hereditary angioneurotic edemaDanazolCl, inhibitor concentrateIcatibantMethylprednisolone  <response>: Medication C1 inhibitor concentrate Plasma-derived Berine, Berine P, Cinryze. Recombinant C1 inhibitor Conestat alfa Ruconest, Rhucin. Bradykinin Bzreceptor antagonist Icatibant Firazyr. Kallikrein inhibitor Ecallantide Kalbitor REF : katzung pharmacology : 14th ed 