PROBLEM TO BE SOLVED: To provide a method of treating a subject having chronic kidney disease.SOLUTION: The method comprises administering to the subject an effective amount of a ferric organic compound having a dissolution rate of at least approximately 2 mg/cm/min. Preferably, the ferric organic compound is administered at a dose of approximately 2-20 gm/day. Preferably, the ferric organic compound administered is formulated as a tablet, a powder, a suspension, an emulsion, a capsule, a lozenge, a granule, a troche, a pill, a liquid, a spirit, or a syrup. Preferably, the ferric organic compound is ferric citrate.SELECTED DRAWING: Figure 1【課題】慢性腎疾患を有する被験体を治療する方法の提供。【解決手段】少なくとも約2mg/ｃｍ２/分の溶解速度を有する有効量の有機第二鉄化合物を該被験体に投与するステップを含む方法。好ましくは、該有機第二鉄化合物を約2～20gm/日の用量で投与する、方法。好ましくは、該有機第二鉄化合物を、錠剤、散剤、懸濁剤、乳剤、カプセル剤、ロゼンジ剤、顆粒剤、トローチ剤、丸剤、液剤、酒精剤、またはシロップ剤として製剤化して投与する、方法。好ましくは、該有機第二鉄化合物がクエン酸第二鉄である、方法。【選択図】図１
