Hos patienter med sekundær hyperparathyreosis bør Renagel anvendes i forbindelse med flere andre behandlinger, der kan omfatte ekstra tilførsel af kalcium, 1, 25- dihydroxy vitamin D3 eller et af dettes analoger for at sænke serumintakt parathyroidhormon (iPTH) niveauerne.
In patients with secondary hyperparathyroidism Renagel should be used within the context of a multiple therapeutic approach, which could include calcium supplements, 1,25 - dihydroxy Vitamin D3 or one of its analogues to lower the intact parathyroid hormone (iPTH) levels.