På grund af risikoen for allergiske reaktioner med faktor IX koncentrater, skal den første indgivelse af faktor IX udføres under medicinsk overvågning, hvor der kan gives forsvarlig medicinsk behandling af allergiske reaktioner.
Because of the risk of allergic reactions with factor IX concentrates, the initial administrations of factor IX should, according to the treating physician’ s judgement, be performed under medical observation where proper medical care for allergic reactions could be provided.