There is provided a method for the prevention and/or treatment of hypotension associated with hemodialysis, which method includes administering to a subject in need thereof an effective amount of at least one physiologically compatible compound which, in combination with iron, binds nitric oxide. There is further provided a method for identifying hemodialysis subjects for whom treatment with an effective amount of at least one physiologically compatible compound which, in combination with iron, binds nitric oxide is indicated. The method includes monitoring the subject’s nitric oxide levels, and selecting those subjects having elevated nitric oxide levels for treatment with an effective amount of at least one physiologically compatible compound which, in combination with iron, binds nitric oxide, wherein the effective amount is sufficient to maintain the subject’s nitric oxide levels within an acceptable range.本發明提供一種用於預防及/或治療與血液透析有關之低血壓的方法,所述方法包含向有需要之個體投予有效量的至少一種與鐵組合結合氧化氮之生理學相容化合物。本發明更提供一種用於識別指定用有效量的至少一種與鐵組合結合氧化氮之生理學相容化合物進行治療的血液透析個體的方法。所述方法包含監測所述個體的氧化氮水平,並選擇具有較高氧化氮水平的那些個體,以用有效量的至少一種與鐵組合結合氧化氮之生理學相容化合物進行治療,其中所述有效量足以使所述個體之氧化氮水平維持在可接受之範圍內。