pubmed-article:8808216 | pubmed:abstractText | Higher doses of calcitriol are effective in lowering markedly elevated 1,84 PTH levels of patients with renal secondary hyperparathyroidism. It has not been established, however, whether prophylactic administration of low doses of calcitriol prevents an increase of 1,84 PTH without causing side-effects, i.e. hypercalcaemia, hypercalciuria, or hyperphosphataemia. | lld:pubmed |