Icatibant is used to treat sudden attacks of a certain immune system condition passed down through families called hereditary angioedema (HAE). Although this medication is not a cure for HAE, icatibant may lessen the symptoms of an attack such as rapid swelling and pain of the hands,... Icatibant works by blocking the action of a natural substance in the body called bradykinin. Bradykinin is thought to cause the symptoms of an HAE attack. View More Info

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